JPH07248108A - Method and system for discharged object disposal system - Google Patents

Abstract

PURPOSE:To prevent environmental pollution and recycle resources by drying and disposing of discharged objects having a high moisture content. CONSTITUTION:Discharged objects 2 are separated to a liquid and a solid, and the liquid is filtered by a large-sized filter 6 while the solid is dried by a vacuum dryer 3. Dried refuse 4 produced at that time is converted into energy by a thermal power plant 5 or by an incinerator 5', and the energy thus produced is distributed to households through transmission lines 9 or through distribution lines for energy 50 for local cooling/heating. Further, residue 7 after incineration is utilized as a soil conditioner. Also, concentrated soil water 23' produced at the time of filtration is dried, and condensed water 21'' of steam produced at the time of drying is filtered, whereby they are completely recovered, respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a spacecraft, a submarine,
The present invention relates to a drying technology for drying raw garbage generated in a finite closed space such as an aircraft. Further, the present invention relates to a drying technique for drying raw garbage at home, restaurants and the like. Further, the present invention relates to a drying technique for drying the excrement generated in a farm or a zoo and a drying technique for drying an organic matter (including food) or an inorganic matter in a solution.

[0002]

2. Description of the Related Art The conventional treatment of excrement in a farm or the like is
As described in the Animal Husbandry Dictionary (Yokendo) p812-822, excrement was only carried out of the barn by a groove with a slope, a belt conveyor, or the like. In addition, household garbage is subjected to composting and drying treatment as described in the Asahi Shimbun evening edition on November 27, 1993,
It was just discarded as general waste. Of this,
Regarding the drying treatment, JP-A-1-139182,
JP-A-1-139383, JP-A-1-26079
No. 1, JP-A-4-83573, and JP-A-4-4-1.
Techniques described in JP-A-03987, JP-A-4-109588 and the like are known.

[0003]

In the above-mentioned prior art, no consideration is given to environmental pollution, and there is a problem that the excrement generated from a ranch or the like is carried out, and a bad odor is drifted around from the piled up excrement. . Further, piled excrement and the like are dissolved in water due to rainfall and the like, and flow into rivers, lakes and the sea (hereinafter referred to as “rivers, etc.”). Chemical oxygen demand.Bioch
However, there is a problem that the amount of algae and the like increases, which leads to a large amount of generation of algae and the like. Further, there is a problem that harmful components such as ammonia contained in urine and the like may damage agricultural products and seafood.

On the other hand, raw garbage generated from homes or the like is left outdoors until the garbage is collected, so that there is a problem that a foul odor drifts around. In addition, some of the materials scattered during garbage collection are dissolved in water due to rainfall and flow into rivers, etc., so that water in rivers becomes eutrophication, BOD increases, and a large amount of algae is generated. There was a problem.

[0005] In the above-mentioned prior art, no consideration is given to energy recycling, only excrement generated from a ranch or the like is left alone, and raw garbage produced at home or dried raw garbage is produced. There is a problem in that the thermal energy that can be generated by the dried material is not effectively used only by discharging it together with general garbage other than garbage and incinerating it.

An object of the present invention is to reduce the odor that is generated from excrement of a ranch or the like, garbage from households, etc. and causes environmental pollution.

Further, another object of the present invention is to recycle energy by effectively utilizing components that can be used as heat energy.

[0008]

In order to achieve the above-mentioned object, in a waste treatment method of discarding and incinerating the generated discharge, drying the discharge at the place where the discharge is generated, The dried material is transported to a place where the dried material is burned as a fuel, and the transported dried material is burned to generate energy for cooling and heating or for power generation.

Further, by purifying the wastewater in the above-mentioned discharge,
Water purification means for separating purified purified water and concentrated sewage, drying means for drying the concentrated sewage, combustion means for using the dried matter as fuel, and water generated by the drying means. Of these, a water supply means for sending water containing impurities to the water purification means is provided.

At this time, as the drying means, reduced pressure drying, drying using microwaves, warm air drying, or a combination of the above drying means is employed.

As the water purification means, a filtration means, a distillation means, a chemical treatment means, or a combination of the above water purification means is used.

Further, the operation of the above system is assumed to be performed at night.

[0013]

According to the present invention, the odors to the surroundings are reduced by drying the excrement of ranches and the like and the garbage from households from the source to the final disposal site.

Further, even when piled up by drying, excrement and the like are solidified by drying, so that the dissolution rate is slower than that of liquid, and dissolution in water due to rainfall etc. is reduced, and rivers and the like are reduced. The amount of inflow decreases. As a result, eutrophication of water in rivers, increase in BOD, and abundance of algae are suppressed. In addition, the problem that harmful components such as ammonia contained in urine and the like are harmful to crops and seafood is solved.

Incidentally, it is desirable that the drying means is provided as close to the generation source as possible, or so that it can be dried shortly after the generation.

At this time, by using a means for drying under reduced pressure as the drying means, the processing temperature is lowered and the energy required for drying can be saved. That is, at 1 atmosphere, 2
The energy required to heat 1 kg of water at 0 ° C and evaporate at 100 ° C is 618 kcal / kg, whereas if the pressure is 1/5 atm, 1 kg of water at 20 ° C
Is reduced to 613 kcal / kg, the energy required to evaporate at 60 ° C. (boiling point at 1/5 atmospheric pressure). Therefore, power consumption is reduced.

When microwaves are used as the drying means, the germs and germs of the microwaves can be used to sterilize bacteria and viruses contained in excrements from farms and the like and household garbage and the like.

When warm air drying is used as the drying means, the efficiency of conversion of electric power for heating into heat is good, so that power consumption is reduced.

Furthermore, when the above-mentioned drying means is combined as the drying means, the respective actions are combined and the effect is improved.

Further, by providing a water purifying means for purifying liquid substances among excretions etc. from ranches,
Impurities contained in the liquid material can be removed from the liquid material. Therefore, the impurities can be prevented from flowing out to the surroundings, and the bad odor to the surroundings is reduced.

Furthermore, by providing water purification means,
Since organic components can be removed from water, dissolution in water due to rainfall, etc. is reduced, the amount flowing into rivers etc. is reduced, eutrophication of water in rivers etc., increase in BOD, large generation of algae etc. Is suppressed. In addition, the problem that harmful components such as ammonia contained in urine and the like are harmful to crops and seafood is solved.

At this time, by using a filtering method as the water purifying means, impurities are removed by supplying a minimum amount of energy.

Further, by using a distillation method as the water purification means, bacteria and viruses contained in excrements such as pastures and household garbage can be sterilized due to the bactericidal action during heating during distillation.

By using a chemical treatment method as the water purification means, a non-filterable component or a volatile component is changed by a chemical reaction so that it can be filtered or distilled,
Solidify and precipitate.

Furthermore, by combining the above water purification methods as the water purification means, the respective actions are combined and the effect is improved.

Further, since the concentrated wastewater is dried and the water containing impurities out of the water generated by the drying is sent to the water purifying means, the liquid discharge and the solid discharge are completely removed. It is also possible to separate into. That is, almost 100% of water can be recovered as purified water, and other than that, almost 100% of solid matter can be recovered.
Can be collected. Such a material circulation loop improves the recovery rate of water and dry solids.

Furthermore, by making the form of the final disposal site such that the dried processed material can be used as a fuel for district heating and cooling and thermal power generation, energy can be recycled and energy efficiency is improved.

At this time, the drying means and the water purifying means are operated at night, and the operation cycle is set so that the dried processed material is used in the daytime. As a result, it is possible to effectively use the electric power at night when the electric power consumption usually decreases. In addition, by not performing drying during the daytime, power consumption during the daytime is reduced, and by burning the dried material for heating,
Electricity consumption for heating etc. is also reduced. As a result, power consumption is leveled.

Here, in the drying using the microwave under a reduced pressure (for example, about 1/5 atmospheric pressure), the energy for drying 1 kg of excrement such as ranch or garbage at home is Water content is 75%, 460kca
1 / kg. At this time, since the conversion efficiency from microwave power is usually about 50%, the required power amount is about 1
It is kWh / kg. Further, when the power consumption of the vacuum pump and the like is taken into consideration, the amount of power required is about 1.5 to 2 kWh / kg. On the other hand, 1 kg of garbage is the dried product
0.25 kg of dry matter is produced per unit. Assuming that the calorific value at this time is about 2/3 of that of lignite, 2000 kcal
It is considered to be a calorific value of / kg (dry matter). Therefore, 1
A calorific value of 500 kcal / kg can be obtained from excrement of a ranch or the like of 100 kg or garbage such as household waste. This calorific value corresponds to an electric power of about 0.58 kWh / kg, which corresponds to 29% to 39% of the electric power consumed for drying.
That is, it is possible to recycle the energy equivalent to 29% to 39% of the electric power required for drying.

Furthermore, the combustion residue (ash) left finally
However, since it contains a large amount of alkaline components, it can be used as a soil conditioner by spraying combustion residues on agricultural land or meadows.

[0031]

FIG. 1 shows an embodiment of the present invention. In FIG. 1, the domestic waste 2 discharged from each household 1 is separated into domestic wastewater 21 and garbage 22 by a separation structure 24 provided in the discharge route. As the separation structure 24, a disposer for separating water by centrifugal dehydration after crushing raw garbage, a filtering means, or a domestic draining means is selected according to the application. The domestic wastewater 21 separated at this time is sent to the large-sized filter 6 as the regional wastewater 23 by piping. Here, the large-sized filter 6 can be provided with a mesh filter, a microfiltration filter, an ultrafiltration filter, a reverse osmosis filter, an activated carbon filter, an ion exchange filter, or a combination thereof, depending on the removal component. On the other hand, the garbage 22 is introduced into the vacuum dryer 3. At this time, the vacuum dryer 3
The vacuum pump 10 is connected, and the dryer condensed water 21 ′ from the steam contained in the exhaust gas is mixed with the domestic waste water 21 to become the regional waste water 23. Further, the concentrated sewage 23 'from the large filter 6 is sent to the large vacuum dryer 3'. At this time, a large vacuum pump 10 'is connected to the large vacuum dryer 3', and the condensed water 2 of the dryer in which the steam contained in the exhaust gas is condensed.
1 ″ is mixed with the domestic wastewater 21 to form the regional wastewater 23. On the other hand, the dry dust 4 from the vacuum dryer 3 and the large vacuum dryer 3'is transferred to the thermal power plant 5 or the incinerator 5 '. At this time, the large-sized filter 6, the thermal power plant 5, or the incinerator 5 ′ is connected to the purified water 8 outlet, the power transmission line 9, or the district cooling and heating energy 50 pipe, respectively. Further, an outlet 71 of the incineration residue 7 is connected to the thermal power plant 5 and the incinerator 5 ′. Living waste 2 discharged from each household 1 is separated structure 2 in the discharge route.
4 separates into domestic wastewater 21 and garbage 22. Of these, the separated garbage 22 is introduced into the vacuum dryer 3. The introduced garbage 22 is decompressed by the vacuum pump 10. For this reason, the boiling point of water contained in the raw garbage 22 decreases, and the water evaporates with less energy than the normal pressure. In this state, steam is generated by heating with a heating means (not shown: heater or the like). This water vapor is discharged to the outside of the apparatus by the vacuum pump 10 and condensed by a condenser (not shown) provided at the subsequent stage of the vacuum pump 10. The condenser may be, for example, a fan or a tube whose outside is cooled by natural air cooling. By this process, the water contained in the raw garbage 22 can be efficiently removed, and the raw garbage 22 can be dried. This time,
Dry dust 4 generated by drying is accumulated as combustible dust and transported to a thermal power plant 5 or an incinerator 5 ′.
The condensed water 21 'generated at this time is the domestic wastewater 21
Together with this, it flows into the local drainage 23. At this time, condensed water 2
If the impurities mixed in 1'is less than the legally defined allowable value, it can be reused as domestic water such as local drinking water. On the other hand, the domestic wastewater 21 and the condensed water 21 ′ separated by the separation structure 24 in the discharge route flow into the large-sized filter 6 as the regional wastewater 23. The large-sized filter 6 removes impurities in the waste water, produces purified water 8, and can be used as domestic water such as local drinking water. On the other hand, the concentrated sewage 23 'containing the impurities removed by the filtration process is introduced into the large vacuum dryer 3'. At this time, in the large-sized reduced pressure dryer 3 ′, the concentrated sewage 23 ′ is dried by the same operation as that of the reduced pressure dryer 3 to become the dry dust 4. The dry waste 4 is finally transported to the thermal power plant 5 or the incinerator 5 ′. Transportation is by belt conveyor, piping, etc. for short distances, and by truck, etc. for long distances. In addition, the condensed water 2 generated in the large vacuum dryer 3 '
1 ″ can be purified as regional drainage 23 depending on its purity, or can be directly reused as domestic water such as local drinking water. Here, the dry dust 4 dried by the vacuum dryer 3 or the large vacuum dryer 3 ′ and transported to the thermal power plant 5 or the incinerator 5 ′ generates thermal energy by combustion, and this thermal energy is It is used as energy 50 for district cooling and heating or energy for power generation. In the case of the district heating / cooling energy 50, the generated electric power is delivered to each home through a heat insulating pipe or the like and through the power transmission line 9. This makes it possible to recover a part of the energy consumed by the vacuum dryer 3 or the large vacuum dryer 3 '. In addition, since the incineration residue 7 generated from the thermal power plant 5 or the incinerator 5 ′ contains a large amount of alkaline components, the combustion residue 7 should be used as a soil conditioner by spraying it on agricultural land or meadow. This will enable recycling that was not possible with energy recovery alone. According to the present embodiment, the vacuum drying has the effect of reducing the energy consumed. Further, by using the filter as the water purifying means, it becomes possible to purify the water with low electric power, which has an effect of further reducing the energy consumed. In addition,
In the system of the present invention, there is no restriction on the operating hours, but in general, the power consumption increases during the daytime and the power consumption decreases during the night, so it is possible to set a limit on the operating time. is there. FIG. 2 shows an example of a power consumption curve when the operation of the system of the present invention is restricted at night and the energy generated in the system of FIG. 1 is reused during the daytime. In FIG. 2, the vertical axis represents the power consumption, the horizontal axis represents the time of day, and the current power consumption 200 is a solid line. When the system is operated at night and energy is reused in the daytime, The expected power consumption of 100 is indicated by a dashed line. In addition, the power consumption change 300 in the daytime and the power consumption change 400 in the nighttime are additionally described. The current power consumption of 200 increases during the daytime due to equipment operation and air-conditioning at offices, shops, and homes, while at night, the consumption due to equipment operation and air-conditioning decreases drastically. . On the other hand, by operating the system in the present invention at night, the power consumption at night is increased by the power consumption change 400 at night, but on the other hand, the thermal energy by the dry matter produced by the system in the daytime is reduced. By reusing it for district heating and cooling, the daytime power consumption can be reduced by the daytime power consumption change 300. The result of this,
The expected power consumption amount 100 is leveled as compared with the current power consumption amount 200. This makes it possible to reduce the operation control range of the generator or the like at the power supply source such as the power plant. According to the present invention, since the electric power can be leveled, there is an effect of improving the operation efficiency of the generator at the electric power supply source. Next, FIG. 3 shows another embodiment of the present invention. In FIG. 3, the household waste 2 discharged from each household 1 is shown in FIG.
Similar to the above, domestic wastewater 21 and kitchen waste 2 along the discharge route
The domestic wastewater 21 is separated into two and sent to the large-sized filter 6 as the regional wastewater 23. Here, in the large-sized filter 6,
Similar to FIG. 1, a mesh filter, a microfiltration filter, an ultrafiltration filter, a reverse osmosis filter, an activated carbon filter, an ion exchange filter, or a combination thereof is provided depending on the removal component. On the other hand, the garbage 22 is similar to FIG.
It is introduced into the vacuum dryer 3. At this time, the microwave dryer 60 and the vacuum pump 10 are connected to the reduced-pressure dryer 3, and the dryer condensed water 2 in which the water vapor contained in the exhaust gas is condensed
1'is mixed with the domestic drainage 21 to become the regional drainage 23, as in FIG. In addition, the concentrated sewage 2 from the large filter 6
3'is sent to a large vacuum dryer 3 '. At this time, the large-scale vacuum dryer 3 ′ is connected to the large-scale microwave oscillator 60 ′ and the large-scale vacuum pump 10 ′, and the dryer condensed water 21 ″ in which the water vapor contained in the exhaust gas is condensed is as shown in FIG. Similarly,
It is mixed with domestic wastewater 21 to form local wastewater 23. Other configurations are the same as those in FIG. Of the domestic waste 2 discharged from each household 1, the separated raw garbage 22 is introduced into the vacuum dryer 3 and is depressurized by the vacuum pump 10 to lower the boiling point of water contained in the raw garbage 22. It is possible to vaporize with less energy than the pressure of. In this state, steam is generated by uniformly heating with the microwave oscillator 60. This water vapor is discharged to the outside of the device by the vacuum pump and condensed by the condenser. By this process, the water contained in the raw garbage 22 can be efficiently removed, and the raw garbage 22 can be dried. This time,
The dried dust 4 generated by drying is treated in the same manner as in FIG. The other processing steps are the same as in FIG.
On the other hand, separated by the separation structure 24 in the discharge route,
The domestic wastewater 21 and the condensed water 21 ′ flow into the large-sized filter 6 as the regional drainage 23, and the concentrated wastewater 23 ′ containing the impurities removed by the filtration process is introduced into the large-sized vacuum dryer 3 ′. . At this time, in the large vacuum dryer 3 ',
The concentrated sewage 23 'is dried by the same operation as the vacuum dryer 3 by heating with the large microwave oscillator 60'.
Dry dust 4 is generated. The dry dust 4 is processed in the same manner as in FIG. The other processing steps are the same as in FIG. The thermal power plant 5 or the incinerator 5'is the same as that shown in FIG. The district cooling / heating energy 50, the electric power generated by the power generation, and the incineration residue 7 are used in the same manner as in FIG. 1. According to the present embodiment, in addition to the effect of the embodiment shown in FIG. 1, there is an effect of preventing putrefaction during transportation due to the sterilization effect by the microwave. Next, FIG. 4 shows another embodiment of the present invention. In FIG. 4, the household waste 2 discharged from each household 1 is separated into the separation structure 2 in the discharge route, as in FIG.
The domestic wastewater 21 and the garbage 22 are separated by 4, and the domestic wastewater 21 is sent to the large-sized filter 6 as the regional wastewater 23. Here, as in FIG. 1, the large-sized filter 6 has a mesh filter, a microfiltration filter, an ultrafiltration filter, a reverse osmosis filter, an activated carbon filter, an ion exchange filter, or a combination thereof, depending on the removal components. To provide. On the other hand, the raw garbage 22 is introduced into the warm air dryer 31 as in FIG. At this time, the warm air dryer 31 has a warm air generator 6
1, the dryer condensate water 21 ′ in which the water vapor contained in the exhaust gas is condensed is mixed with the domestic waste water 21 to form the regional waste water 23. Further, the concentrated sewage 23 'from the large-sized filter 6 is sent to the large-sized warm air dryer 31'. At this time, the large-sized warm air generator 31 'is attached to the large-sized warm air generator 6'.
1'is connected, and the dryer condensed water 21 '' in which the water vapor contained in the exhaust gas is condensed is mixed with the domestic waste water 21 to become the regional waste water 23. Other configurations are shown in FIG.
Is the same as. The separated raw garbage 22 of the domestic waste 2 discharged from each home 1 is introduced into a warm air dryer 31. The introduced garbage 22 is heated by warm air from the warm air generator 61 to generate steam. The steam is discharged to the outside of the device by the hot air generated by the hot air generator 61 and condensed by the condenser. By this process, the water contained in the raw garbage 22 can be efficiently removed, and the raw garbage 22 can be dried. At this time, the dry dust 4 generated by drying is treated in the same manner as in FIG.
The other processing steps are the same as in FIG. on the other hand,
The domestic wastewater 21 and the condensed water 21 ′ separated by the separation structure 24 in the discharge route flow into the large-sized filter 6 as the regional wastewater 23, and the concentrated wastewater 23 containing the impurities removed by the filtration process is concentrated. 'Is introduced into the large-sized warm air dryer 31'. At this time, in the large-sized warm air dryer 31 ′, the concentrated sewage 23 ′ is dried by heating by the large-sized warm air generator 61 ′ and the same operation as the warm air dryer 31 to generate the dry dust 4. The dried dust 4 is then processed in the same manner as in FIG. The other processing steps are the same as in FIG. The thermal power plant 5 or the incinerator 5'is the same as that shown in FIG. The district cooling / heating energy 50, the electric power generated by the power generation, and the incineration residue 7 are used in the same manner as in FIG. 1. According to this embodiment, in addition to the effect of the embodiment shown in FIG. 3, there is an effect of improving the efficiency of water vapor transfer by warm air. Next, FIG. 5 shows another embodiment of the present invention. In FIG. 5, the domestic waste 2 discharged from each household 1 is separated into domestic wastewater 21 and garbage 22 in the discharge route, as in FIG. 1, and the domestic wastewater 21 is a large-scale distiller as the regional wastewater 23. Sent to 6A. Here, a heater 6A1 for heating and a cooler 6A2 for condensation are connected to the large-scale distiller 6A. On the other hand, the raw garbage 22 is sent to the vacuum dryer 3. At this time, the vacuum pump 10 is connected to the vacuum dryer 3,
Dryer condensed water 21 'where water vapor contained in the exhaust gas is condensed
Is mixed with domestic wastewater 21 to form local wastewater 23. The concentrated wastewater 23 'from the large-scale distiller 6A is sent to the large-sized vacuum dryer 3'. At this time, a large vacuum pump 10 ′ is connected to the large vacuum dryer 3 ′, and the dryer condensed water 21 ″ in which steam contained in the exhaust gas is condensed is mixed with the domestic wastewater 21 to form the regional drainage 23. Become. Other configurations are the same as those in FIG.

The domestic waste 2 discharged from each household 1 is separated into domestic wastewater 21 and garbage 22 by a separation structure 24 in the discharge route. Of these, the raw garbage 22 is dried by the dryer as in FIG. 1, and the dryer condensed water 21 ′ flows into the local drainage 23 together with the generated domestic wastewater 21. At this time, if the impurities mixed in the condensed water 21 'are equal to or less than the legally determined allowable value, they can be reused as domestic water such as local drinking water.

On the other hand, domestic wastewater 21 and dryer condensed water 21 'separated by the separation structure 24 in the discharge route.
Flows into the large still 6A as the regional drainage 23. In the large-scale distiller 6A, the wastewater is heated by the heater 6A1 for heating, and the generated steam is condensed by the cooler 6A2 for condensation to remove impurities in the wastewater and generate the purified water 8 to generate drinking water in the area. It can be used as water for daily life.
On the other hand, the concentrated sewage 23 ′ containing the impurities removed by the filtration process is introduced into the large-sized vacuum dryer 3 ′ and dried by the same operation as the vacuum dryer 3 to obtain the dried dust 4
Becomes The dry waste 4 is transported to the thermal power plant 5 or the incinerator 5 ′. The other processing steps are the same as those shown in FIG. Moreover, the thermal power plant 5 or the incinerator 5'is the same as that of FIG. Energy for district heating and cooling 5
0, electric power generated by power generation, and incineration residue 7 are used in the same manner as in FIG.

According to this embodiment, in addition to the effects of the embodiment shown in FIGS. 1 to 4, there is an effect that the ability to sterilize purified water is improved.

Next, FIG. 6 shows another embodiment of the present invention. In FIG. 6, household waste 2 discharged from each household 1
1 is separated into domestic wastewater 21 and raw garbage 22 in the discharge route, and the domestic wastewater 21 is sent to the chemical treatment device 6B as local wastewater 23, as in FIG. Here, the medicine processing device 6B is connected to a medicine 6B1 input port. On the other hand, the raw garbage 22 is sent to the vacuum dryer 3. This time,
The vacuum pump 10 is connected to the vacuum dryer 3, and the dryer condensed water 21 ′ in which the steam contained in the exhaust gas is condensed is mixed with the domestic wastewater 21 to become the regional wastewater 23. The concentrated wastewater 23 'from the chemical treatment device 6B is sent to the large-sized vacuum dryer 3'. At this time, the large vacuum pump 10 'is connected to the large vacuum dryer 3', and the dryer condensed water 21 'in which the water vapor contained in the exhaust gas is condensed is mixed with the domestic waste water 21 to become the regional waste water 23. . Other configurations are the same as those in FIG.

The household waste 2 discharged from each household 1 is separated into domestic wastewater 21 and garbage 22 by a separation structure 24 in the discharge route. Of these, the raw garbage 22 is dried by the dryer as in FIG. 1, and the dryer condensed water 21 ′ flows into the local drainage 23 together with the generated domestic wastewater 21. At this time, if the impurities mixed in the condensed water 21 'are equal to or less than the legally determined allowable value, they can be reused as domestic water such as local drinking water.

On the other hand, domestic wastewater 21 and dryer condensed water 21 'separated by the separation structure 24 in the discharge route.
Flows into the chemical treatment device 6B as the regional drainage 23.
In the chemical treatment device 6B, the chemicals 6B1 causes a chemical change in the wastewater, impurities in the wastewater are removed by precipitation, purified water 8 is generated, and the wastewater can be used as domestic water such as drinking water in the area. On the other hand, the concentrated sewage 23 ', which contains the impurities removed by the filtration process, is a large vacuum dryer 3'.
And is dried by the same operation as the reduced-pressure dryer 3 to be dried dust 4. The dry waste 4 is transported to the thermal power plant 5 or the incinerator 5 ′. The other processing steps are the same as those shown in FIG. Moreover, the thermal power plant 5 or the incinerator 5'is the same as that of FIG. The district cooling / heating energy 50, the electric power generated by the power generation, and the incineration residue 7 are used in the same manner as in FIG. 1.

According to this embodiment, in addition to the effects of the embodiment shown in FIGS.
It has the effect of reducing power consumption.

1 to 6 show, as an example, a drying process and a water purification process when the generation of waste is dispersed in each household, and are shown in FIGS. 1 to 6. The combination of the drying process and the water purification process can be arbitrary. That is, any drying process by reduced pressure drying, microwave drying, warm air drying, or a combination thereof,
It is possible to construct an arbitrary system by combining with a water purification process by a filtration process, a distillation process, a chemical treatment process, or a combination thereof.

Next, FIG. 7 shows an embodiment in the case where a large amount of waste is generated at one place, such as a ranch and an apartment house.
In FIG. 7, the excrement or domestic excrement 2 generated from a ranch, an apartment house, or the like is a liquid excrement, a cleaning liquid of excrement, or a domestic wastewater 21 and a solid excrement due to a separation structure 24 provided in the emission route. Alternatively, it is separated into garbage 22 and the like. At this time, the separated liquid waste, the cleaning liquid of the waste, or the domestic wastewater 21 is sent to the large-sized filter 6.

Here, as in FIG. 1, the large-scale filter 6 has a mesh filter, a microfiltration filter, an ultrafiltration filter, a reverse osmosis filter, an activated carbon filter, an ion exchange filter, or the like, depending on the removed components. The combination of

On the other hand, the solid waste or the garbage 22 is sent to the large-sized vacuum dryer 3 '. At this time, a large vacuum pump 10 'is connected to the large vacuum dryer 3', and the condensed water 21 '' of the dryer in which the water vapor contained in the exhaust gas is condensed is a liquid excrement, a cleaning liquid for excrement, or domestic wastewater. With 21,
It is sent to the large-sized filter 6. On the other hand, the dry debris 4 from the large vacuum dryer 3'is transferred to the thermal power plant 5 or the incinerator 5 '. At this time, the large-sized filter 6, the thermal power plant 5, or the incinerator 5 ′ is connected to the purified water 8 outlet, the power transmission line 9, or the district cooling and heating energy 50 pipe, respectively. Further, an outlet 71 for the incineration residue 7 is connected to the thermal power plant 5 and the incinerator 5 ′.

The excrement or domestic waste 2 generated from a ranch or an apartment house is a liquid excrement in the discharge route,
The waste liquid is separated into a cleaning liquid or domestic wastewater 21 and a solid waste or garbage 22. Of these, the separated solid excrement or garbage 22 is sent to a large vacuum dryer 3'and decompressed by a large vacuum pump 10 ',
It is dried by heating with a heating means (not shown). Through this process, solid waste or garbage 22
Are dried to be dried dust 4. The dry waste 4 is transported to the thermal power plant 5 or the incinerator 5 ′ and incinerated. At this time, the condensed water 21 'of the steam generated in the drying process
Is liquid excrement, excrement cleaning liquid, or domestic wastewater 21
Together with this, it flows into the large-sized filter 6. At this time, condensed water 2
If the impurities mixed in 1'is less than the legally determined allowable value, liquid waste, cleaning liquid for excrement, or other route than domestic wastewater 21 and condensed water 21 'should be local drinking water, etc. Can be reused as domestic water.

On the other hand, the liquid excrement separated by the separation structure 24 in the discharge route, the excrement cleaning liquid, or the domestic wastewater 21 and the condensed water 21 'flow into the large-sized filter 6. The large-sized filter 6 removes impurities in the waste water and produces purified water 8, and the waste water can be used as domestic water such as drinking water in the area. On the other hand, the concentrated sewage 23 ′ containing the impurities removed by the large-sized filter 6 is introduced into the large-sized drier 3 ′ and dried to be the dried dust 4. Dry trash 4
Is transported to the thermal power plant 5 or the incinerator 5'and incinerated. The other processing steps are the same as those shown in FIG. In addition, the thermal power plant 5 or the incinerator 5 ′ is shown in FIG.
Is the same as. The district cooling / heating energy 50, the electric power generated by the power generation, and the incineration residue 7 are used in the same manner as in FIG. 1.

According to this embodiment, in addition to the effects of the embodiment shown in FIGS. 1 to 6, the drying process can be carried out at one place, so that there is an effect of reducing the constituent elements.

It should be noted that FIG. 7 shows only an example in the case where a large amount of waste is generated at one place such as a ranch, an apartment house, etc., and the drying process and water purification shown in FIG. The process can be any combination of the drying process and the water purification process shown in FIGS. That is, any drying process by vacuum drying, microwave drying, warm air drying, or a combination thereof and any water purification process by a filtration process, a distillation process, a chemical treatment process, or a combination thereof is performed. The system can be built.

Further, in the embodiment shown in FIG. 1 to FIG. 7, the water purification process and the drying process, or the water purification process or the drying process can be multi-staged, and the sewage concentration in the water purification process can be stepped or the drying process. It is also possible to grade the water content of the material to be dried. In this case, the drainage of the condensed water discharged from the drying process has a sewage concentration at each stage in the multi-stage water purification process that is similar to the drainage of the condensed water (about 10 times or less than 1/10). The load in the water purification process can be reduced by entering the water purification process at the stage where the impurity concentration is reached.

Similarly, the water content of each stage of the concentrated sewage discharged from the water purification process in the multi-stage drying process is about the same as the water content of the concentrated sewage (about 10 times or less than 1/10). By putting it in the stage water purification process of the same level (10 times or less than 1/10) as the sewage concentration of other stages (usually before the previous stage) in the multi-stage water purification process It is possible to reduce the load of the drying process and the water purification process.

[0049]

EFFECTS OF THE INVENTION According to the present invention, since excrement or raw garbage which has been a source of environmental pollution or bad odor due to decay can be systematically dried and used as fuel, the effect of preventing environmental pollution and It has the effect of energy recycling.

Furthermore, according to the present invention, liquid excrement and domestic wastewater are concentrated, and excrement and garbage are dried,
By condensing and collecting water vapor generated during drying, it can be reused as domestic water, which has the effect of resource reuse.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of the present invention.

FIG. 2 is a configuration diagram showing an embodiment of power change according to the present invention.

FIG. 3 is a configuration diagram showing another embodiment of the present invention.

FIG. 4 is a configuration diagram showing another embodiment of the present invention.

FIG. 5 is a configuration diagram showing another embodiment of the present invention.

FIG. 6 is a configuration diagram showing another embodiment of the present invention.

FIG. 7 is a configuration diagram showing another embodiment of the present invention.

[Explanation of symbols]

1 ... Each household, 2 ... Household waste, 3 ... Vacuum dryer, 3 '...
Large vacuum dryer, 4 ... Dry trash, 5 ... Thermal power plant, 5 '
... Incinerator, 6 ... Large-sized filter, 6A ... Distiller, 6A1 ... Heating heater, 6A2 ... Condensing cooler, 6B ... Chemical treatment device, 6B1 ... Chemical, 7 ... Incineration residue, 8 ... Purified water, 9 ... Transmission line, 10 ... vacuum pump, 10 '... large vacuum pump, 2
1 ... Domestic wastewater, 21 '... Dryer condensed water, 22 ... Raw garbage,
23 ... Regional drainage, 23 '... Concentrated sewage, 50 ... District cooling / heating energy, 60 ... Microwave oscillator, 60' ... Large microwave oscillator, 61 ... Warm air generator, 61 '... Large warm air generator, 100 ... Expected power consumption, 200 ... Current power consumption, 300 ... Daytime power consumption change, 400 ...
Change in power consumption at night

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical indication C02F 11/06 A 7446-4D 11/12 E 7446-4D ZAB A 7446-4D F23G 5/10 ZAB A 5/44 ZAB Z F26B 3/347 5/04 (72) Inventor Akio Tachinai 216 Totsuka-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture Hitachi, Ltd. Information & Communication Division

Claims (9)

[Claims] 1. A method for treating waste by incineration of the generated discharge, wherein the discharge is dried at a place where the discharge is generated, and the dried dry product is burned as a fuel. An exhaust treatment method comprising transporting the dried product and burning the transported dried product to generate energy for cooling and heating or for power generation. 2. A waste treatment system for treating generated waste, wherein the waste water in the waste is separated into purified water and concentrated wastewater, and water is dried to dry the concentrated wastewater. Means, a combustion means using the dried material dried by the drying means as a fuel, and a water supply means for sending water containing impurities out of the water generated by the drying means to the water purification means. Waste treatment system. 3. The effluent treatment system according to claim 2, wherein the drying means heats and dries the effluent while decompressing the effluent. 4. The waste treatment system according to claim 2, wherein the drying means heats the waste by microwaves to dry the waste. 5. The waste treatment system according to claim 2, wherein the drying means heats the waste with warm air to dry it. 6. The waste treatment system according to any one of claims 2 to 5, wherein the water purification means filters the waste water to separate purified water and concentrated waste water. An exhaust treatment system characterized by: 7. The waste treatment system according to any one of claims 2 to 5, wherein the water purification means separates the purified water and the concentrated wastewater by distilling the waste water. An exhaust treatment system characterized by: 8. The waste treatment system according to claim 6 or 7, wherein the waste water is treated with chemicals and then purified. 9. The waste treatment system according to any one of claims 1 to 8, wherein the operation of the system is performed at night.