CN2758238Y

CN2758238Y - Capillary tube wetting type sewage treatment device

Info

Publication number: CN2758238Y
Application number: CN 200420112117
Authority: CN
Inventors: 王军
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-10-29
Filing date: 2004-10-29
Publication date: 2006-02-15
Anticipated expiration: 2014-10-29

Abstract

The utility model relates to a capillary tube wetting type sewage treatment device, which is provided with a groove body of which the inner wall is inlaid with a waterproof layer, a water outlet pipe on the bottom of the groove body and active carbon around the water outlet pipe. A thin sandy clay layer, a pebble layer, an active filter layer with the functions of bearing and filtering, a rectangular water distribution net pipe of which the size corresponds to the size of the groove body, a crushed stone layer on the net pipe, a thick sandy clay layer and ground vegetation of which the top is lawn greening plants are sequentially arranged on the groove body from bottom to top. The utility model has the advantages of reasonable structure, no power consumption, small influence of external environmental condition, no odor and no influence on landscape. The utility model is buried in ground and can work as usual in winter; the surface of the utility model is planted with lawn which can be combined with afforestation. The disposable investment for the treatment of domestic sewage from villages and small towns is only from 1/4 to 1/3 time of the conventional secondary treatment method, the running cost is only 1/5-1/4 time of the conventional treatment, and key pollutant indexes in treated water, such as COD, BOD, SS, etc., achieve the standard of 'quality standard of living water' issued by the national ministry of reconstruction.

Description

Kapillary moisture type waste disposal plant

Technical field

The invention belongs to sewage disposal device, is a kind of kapillary moisture type waste disposal plant specifically.

Background technology

China is the poor relatively country of a water resources, 1/4 of the not enough world average level of water resources ownership per capita, and China is again that water pollutes one of the most serious country simultaneously." control is two up to standard " of State Bureau of Environmental Protection obtained very big achievement to the improvement of industrial pollution source, but the small-scale pollution of area source is immeasurable to the influence that China (river, sea, lake, river) environmental quality produces on a large scale.Existing traditional small-scale sewage treatment process is as A ²/ O technology, oxidation ditch process, SBR method etc., not only initial cost, working cost height, and operational administrative complexity, and China's vast Rural areas economic level is generally not too flourishing, and labor force's level integral body is not high, and these have limited applying of above technology.So far the quality of water environment of China still is degradating trend.Therefore, handle by traditional, large-scale centralized and change large-scale small-scale sewage into and handle; Administered to change into simultaneously by simple industrial pollution the pollution of area source in city and rural area is administered: being changed into cheaply, controlled pollution based on natural soil and biological method by expensive chemistry, physical treatment method is current Wo Guo Han water environmental problems to be solved.

Summary of the invention

The present invention seeks to overcome the shortcoming such as initial cost height, working cost height, complicated operation of present small-scale sewage treatment facility, the scattered settlement district that does not still have sewerage for the holiday village of vast Rural areas, landscaped area, office etc. provides a kind of sewage treatment unit---kapillary moisture type waste disposal plant.

It is the cell body that lays waterproof layer that the utility model has inwall, and cell body bottom rising pipe and the gac around it, be followed successively by thin sandy clay layer and pebble bed by cell body bottom to top layer, play the active filtering layer of support transudation, with the corresponding rectangular cloth of cell body size network of rivers pipe and top metalling thereof and thick sandy clay layer and top be the surface vegetation of lawn greening plant.

Above-mentioned active filtering layer by sandy clay, cinder, wood chip, empty metal tin by 10: 8: 2: 1 mixed forms.

Above-mentioned water distribution pipe network is the foraminate tubular body arranged inside in some its tops of parallel or staggered connection in the rectangular pipe.

Description of drawings

Fig. 1 overall structure diagrammatic cross-section of the present invention.

Fig. 2 water distribution pipe network is looked up structural representation.

1 sandy clay layer wherein, 2 pebble beds, 3 active filtering layers, 4 metallings, 5 water distribution pipe networks, 6 sandy clay layers, 7 surface vegetations, 8 gacs, 9 cell bodies, 10 apertures.

Embodiment

As Fig. 1, it is the cell body 9 that lays waterproof layer that the utility model has inwall, and cell body 9 bottom rising pipes and the gac 8 around it, and be followed successively by thin sandy clay layer 1 and pebble bed 2 by cell body 9 bottoms to top layer, play the active filtering layer 3 of support transudation, with the corresponding rectangular cloth grid 5 of cell body size and top metalling 4 thereof and thick sandy clay layer 6 and top be that the surface vegetation 7 of lawn greening plant is formed.

Above-mentioned active filtering layer 3 by sandy clay, cinder, wood chip, empty metal tin by 10: 8: 2: 1 mixed forms.The selection of thickness mainly by the decision of water inlet Pollutant levels, is generally 500～1000mm, the active filtering layer of this formulated, and organic content is abundant, the crumb structure prosperity, the infiltration rate height, wicking action is strong, and loading capacity is big, and permeability is better.Simultaneously, be rich in necessary nutrition of microorganism and energy substance,, therefore have higher biological activity for soil microorganisms provides good existence developing environment.

Thin sandy clay layer 1 thickness is at 100～200mm, plays the active filtering layer as filter layer of support on it jointly with pebble bed 2. 20～80mm pebble bed 2 thick 200～300mm of above-mentioned laying.

Above-mentioned water distribution pipe network 5 is tubular body arranged insidies that aperture 10 is arranged at rectangular pipe interior parallel (as Fig. 2) or staggered some its tops that are communicated with, and the water distribution of its caliber D=50～75mm or water distribution pipe network adopt pvc pipe.Pvc pipe is downward 45 ° of punchings at interval along both sides, and aperture pitch is 30～50mm, and the aperture is 3～6mm.

The combination of the metalling 4 thickness 100～200mm (rubble also can replace with cobble) of the top of water distribution pipe network and the thick sandy clay layer 6 of top thereof, sewage is risen along kapillary, by a series of effects such as physics detention, absorption absorption, microbiological degradation utilization and plant absorbing of sandy clay layer 6, the organism in the sewage is removed.Wherein microbic activity plays crucial effect to the removal of organic pollutant, and being decomposed through biochemical reaction under action of microorganisms by the organic pollutant of detention and absorption changes into inorganics.

The absorption of 7 pairs of nutritive elements of surface vegetation at top also is the important channel of sewage purification.Nitrogen in the sewage, phosphorus etc. are absorbed and used by root system of plant as the necessary for plant growth nutrient, are moved out of the purpose that system reaches denitrogenation dephosphorizing when mowing, and the frequent removal amount that can make nutritive element that cuts the grass on a lawn reaches maximum.

The cell body 9 of whole device is plastics such as PVC plate, or Steel Concrete is cast or iron.Have in the cell body 9 or lay water resistant polyurea ethene bilayer film cloth, can prevent that sewage from permeating the ground, cause secondary pollution.The simplyst can be directly replace cell body with polyethylene multilayer film cloth.

The small amount of activated 8 that place at the water outlet place, the pollutent in can further adsorbing, purifying waste water makes water outlet limpid.

The utility model is rational in infrastructure, and non-power consumption is beneficial to promotion and implementation.Be embedded in undergroundly, it is little influenced by external environmental condition, and can move as usual winter, do not distribute smell, do not influence view, and surperficial turf plant can combine with greening.Material therefor all is the refuse of recyclable utilization, processing for the sanitary sewage in villages and small towns, its one-time investment only is the 1/4-1/3 of conventional second-stage treatment method, working cost only is processed conventionally 1/5-1/4, both can replace conventional processing, can be used as the further advanced treatment technology after the conventional processing again.Principal pollutant index COD, BOD, SS etc. reach promulgated by the ministries or commissions of the Central Government of nation-building in the treat effluent " miscellaneous domestic water quality standard " (CJ251-89).Realize abundant the purifications He Shui of sewage, the regeneration of fertile resource circulation and effectively utilize that reach the purpose that the processing of sewage combines with utilization, water outlet can be used for watering lawn, farmland, for the water-deficient area provides second water source.

The mechanism of the present utility model of constructing thus comprises that the filtration of soil is held back, the effects such as picked-up of decomposition, bio-oxidation and the microorganism of the absorption of physics and chemistry, chemistry.Be evenly distributed on the active filtering layer 3 via water-in and by water distributor 5 through pretreated sewage, active filtering layer 3 suspends being in the sewage and the organic substance of dissolved state is retained down, surface at soil particle forms thin film, microorganism abrim in this layer film, it can adsorb the organism in the sewage, and utilizes airborne oxygen, under the effect of aerobic bacteria, organism in the sewage is converted into inorganics, as CO ₂, NH ⁺ ₄Thereby, the deleterious pollutent of having degraded such as nitrate and phosphoric acid salt.Sewage rises to sandy clay layer 6 place by capillary action simultaneously, and by a series of effects such as physics detention, absorption absorption, microbiological degradation utilization and plant absorbing, the organism in the sewage is removed.Nutritive substances such as the nitrogen at sandy clay layer 6 place, phosphorus are absorbed by surface vegetation 7 again.Non-volatile solids material in the sewage usually can stop up the space between grogs, thereby influences the speed of sewage permeation, hinders entering of air, at this moment because the animal in the soil navigates between grogs as worm and nematode etc., can make loosing soil.Sewage comes to this and obtained purification under the biotic synergism in the physics of soil, chemical action and soil ecosystem, discharges direct reuse by water outlet.

Claims

1 one kinds of kapillary moisture type waste disposal plants, it is characterized in that by inwall is arranged be the cell body (9) that lays waterproof layer, and cell body (9) bottom rising pipe and the gac (8) around it, and be followed successively by thin sandy clay layer (1) and pebble bed (2) by cell body (9) bottom to top layer, play the active filtering layer (3) of support transudation, with corresponding rectangular cloth grid of cell body size (5) and top metalling (4) thereof be surface vegetation (7) composition of lawn greening plant with thick sandy clay layer (6) and top.

2. kapillary moisture type waste disposal plant as claimed in claim 1, it is characterized in that above-mentioned active filtering layer (3) by sandy clay, cinder, wood chip, empty metal tin by 10: 8: 2: 1 mixed forms, and thickness is 500～1000mm.

3 kapillary moisture type waste disposal plants as claimed in claim 1 is characterized in that thin sandy clay layer (1) thickness is at 100～200mm.

4 kapillary moisture type waste disposal plants as claimed in claim 1 is characterized in that  20～80mm pebble bed (2) thickness 200～300mm that lays.

5 kapillary moisture type waste disposal plants as claimed in claim 1 is characterized in that water distribution pipe network (5) is the tubular body arranged inside that aperture (10) are arranged at some its tops parallel or staggered connection in the rectangular pipe.

6 kapillary moisture type waste disposal plants as claimed in claim 1 is characterized in that cell body (9) makes for plastics such as PVC plate or Steel Concrete.

7 kapillary moisture type waste disposal plants as claimed in claim 6 is characterized in that having in the cell body (9) or laying water resistant polyurea ethene bilayer film cloth.

8 as claim 1 or 6 described kapillary moisture type waste disposal plants, it is characterized in that above-mentioned cell body (9) directly replaces cell body with polyethylene multilayer film cloth.