CN113213564A - Method for preparing water treatment medicament by using sludge residues - Google Patents
Method for preparing water treatment medicament by using sludge residues Download PDFInfo
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- CN113213564A CN113213564A CN202110536770.8A CN202110536770A CN113213564A CN 113213564 A CN113213564 A CN 113213564A CN 202110536770 A CN202110536770 A CN 202110536770A CN 113213564 A CN113213564 A CN 113213564A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/10—Treatment of sludge; Devices therefor by pyrolysis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a method for preparing a water treatment agent by using sludge residues, and relates to the technical field of sludge residues. Drying and carbonizing sludge residues, mixing and stirring the sludge residues and an adsorption decolorant after carbonization, fusing the sludge residues and the adsorption decolorant, achieving the effect of cleaning water quality, solving the problem that the existing sewage treatment needs a large amount of chemical agents to be treated, ensuring higher cost of sewage treatment, being incapable of purifying sewage through sludge in the sewage, and reducing the problem of practicability of the sewage treatment. The mixture of concentrated sulfuric acid and concentrated hydrochloric acid is arranged in the sludge residue, and calcium hydroxide can be subjected to acid-base neutralization with sewage, so that the pH value of the sewage can be neutralized.
Description
Technical Field
The invention relates to the technical field of sludge residues, in particular to a method for preparing a water treatment medicament by using sludge residues.
Background
After industrial sewage and urban domestic sewage are treated, sludge is generated, the sludge amount usually accounts for 0.3-0.5% of the volume of the sewage, and the mass of the sludge is about 1-2% of the sewage treatment amount. The composition, nature and quantity of the sludge depend mainly on the source of the wastewater and the wastewater treatment process.
The existing sewage treatment needs a large amount of chemical agents for treatment, so that the cost of sewage treatment is high, sewage cannot be purified through sludge in the sewage, and the practicability of sewage treatment is reduced.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a method for preparing a water treatment medicament by using sludge residues, which solves the problems in the background art.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a method for preparing a water treatment agent by using sludge residues comprises the following steps: the method comprises the following steps:
the method comprises the following steps:
discharging sludge residues containing wastewater into a first sedimentation tank, standing for 0.5-2 hours, discharging wastewater at the top of the sludge residues, discharging the wastewater into a wastewater tank, placing the sludge residues into a drying furnace, and drying at 800 ℃ for 5-6 hours;
step two:
adding concentrated sulfuric acid and concentrated hydrochloric acid into a first stirring tank, wherein the volume ratio of the concentrated sulfuric acid to the concentrated hydrochloric acid is 9-15%, stirring time is 3-5 minutes, and stirring temperature is 100-120 ℃;
step three:
putting the dried sludge residue into a second stirring tank, pouring concentrated sulfuric acid and a concentrated hydrochloric acid compound into the first stirring tank, wherein the ratio of the sludge residue to the concentrated sulfuric acid to the concentrated hydrochloric acid compound is 10: 1, adding water, wherein the ratio of water to sludge residue is 5:1, starting a first stirring tank to stir sludge residues for 10-20 minutes;
step four:
and then adding a mixture of calcium hydroxide and water into the stirring tank II, wherein the ratio of the calcium hydroxide to the water is 1: 10, the ratio of sludge residue to the mixture of calcium hydroxide and water 10: 1, continuously stirring for 10-20 minutes;
step five:
adding an adsorption decolorant, polyacrylamide, a flocculating agent and a sterilization algicide into the second stirring tank, wherein the ratio of the adsorption decolorant to the sludge residue is 1:30, and continuing stirring in the second stirring tank for 5-10 minutes;
step six:
all the mixture in the stirring tank II is poured into a wastewater pool.
Preferably, the first stirring tank rotates at a speed of 50 circles per minute.
Preferably, the stirring speed of the second stirring tank is 100 circles per minute.
Preferably, the inside of the wastewater tank is provided with a stirring device, and the stirring speed is 20 circles per minute.
Preferably, the ratio of the polyacrylamide to the water is 0.5:1, the mixing temperature of the polyacrylamide and the water is 20-30 ℃, and the mixing time of the polyacrylamide and the water is 5-10 minutes.
Preferably, the ratio of the flocculating agent to the water is 1:1, the mixing temperature of the flocculating agent and the water is 30-40 ℃, and the mixing time of the flocculating agent and the water is 2-3 minutes.
Preferably, the ratio of the bactericidal algicide to the water is 2:1, the mixing temperature of the bactericidal algicide and the water is 30-40 ℃, and the mixing time of the bactericidal algicide and the water is 1-2 minutes.
Preferably, the concentration of the concentrated sulfuric acid is 80-95%, and the concentration of the concentrated hydrochloric acid is 30-35%.
Preferably, the ratio of the polyacrylamide to the flocculant to the bactericidal algicide to the sludge residue is 2:3, 1:2 and 1:1 respectively.
(III) advantageous effects
The invention provides a method for preparing a water treatment medicament by using sludge residues. The method has the following beneficial effects:
(1) the method for preparing the water treatment agent by utilizing the sludge residue dries and carbonizes the sludge residue, and mixes and stirs the carbonized sludge residue and the adsorption decolorant, so that the sludge residue and the adsorption decolorant are fused, the effect of cleaning water quality is achieved, the problem that the existing sewage treatment needs a large amount of chemical agents to be treated, the cost of the sewage treatment is higher, the sewage cannot pass through the sludge in the sewage, and the sewage is purified, so that the practicability of the sewage treatment is reduced.
(2) The method for preparing the water treatment medicament by utilizing the sludge residue is characterized in that a mixture of concentrated sulfuric acid and concentrated hydrochloric acid is arranged in the sludge residue, and calcium hydroxide can be subjected to acid-base neutralization with sewage, so that the pH value of the sewage can be neutralized.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
A method for preparing a water treatment agent by using sludge residues comprises the following steps:
discharging sludge residues containing wastewater into a first sedimentation tank, standing for 0.5-2 hours, discharging wastewater at the top of the sludge residues, discharging the wastewater into a wastewater tank, arranging a stirring device in the wastewater tank, stirring at the speed of 20 circles per minute, placing the sludge residues into a drying furnace, drying at the temperature of 800 ℃ for 5-6 hours, separating the wastewater containing the sludge residues through the first sedimentation tank, and thus obtaining sludge residues with low water content, and drying the sludge residues in the drying furnace to carbonize the sludge residues;
step two:
adding concentrated sulfuric acid and concentrated hydrochloric acid into a first stirring tank, wherein the volume ratio of the concentrated sulfuric acid to the concentrated hydrochloric acid is 9-15%, the concentration of the concentrated sulfuric acid is 80-95%, the concentration of the concentrated hydrochloric acid is 30-35%, the stirring time is 3-5 minutes, the stirring temperature is 100-120 ℃, the volatility of the hydrochloric acid is high, and hydrochloric acid is mainly used;
step three:
putting the dried sludge residue into a second stirring tank, pouring concentrated sulfuric acid and a concentrated hydrochloric acid compound into the first stirring tank, wherein the ratio of the sludge residue to the concentrated sulfuric acid to the concentrated hydrochloric acid compound is 10: 1, adding water, wherein the ratio of water to sludge residue is 5:1, starting a first stirring tank to stir sludge residues for 10-20 minutes, pouring hydrochloric acid and sulfuric acid into the sludge residues, neutralizing the sludge residues, and accelerating the stirring speed of a second stirring tank for neutralizing physical residues and hydrochloric acid and sulfuric acid to be 100 circles per minute;
step four:
and then adding a mixture of calcium hydroxide and water into the stirring tank II, wherein the ratio of the calcium hydroxide to the water is 1: 10, the ratio of sludge residue to the mixture of calcium hydroxide and water 10: 1, continuously stirring for 10-20 minutes, and adding calcium hydroxide into the sludge residue to neutralize with hydrochloric acid and sulfuric acid, so that the pH value of the sludge residue is neutralized;
step five:
adding an adsorption decolorant, polyacrylamide, a flocculating agent and a sterilization algicide into a second stirring tank, wherein the ratio of the adsorption decolorant to sludge residues is 1:30, continuously stirring the second stirring tank for 5-10 minutes, the rotation speed of the first stirring tank is 50 circles per minute, the stirring speed of the second stirring tank is 100 circles per minute, the adsorption decolorant is added into the sludge residues, the adsorption of the sludge residues can be improved, the polyacrylamide can be used for coagulation and clarification of suspended particles in sewage, after the flocculating agent is dissolved in water, fine particles and natural colloidal particles in the water can be coagulated into large floccules, the floccules are removed from the water and used for purifying the sewage, the ratio of the polyacrylamide to the water is 0.5:1, the temperature for mixing the polyacrylamide with the water is 20-30 ℃, and the time for mixing the polyacrylamide with the water is 5-10 minutes, the ratio of the flocculating agent to the water is 1:1, the mixing temperature of the flocculating agent and the water is 30-40 ℃, the mixing time of the flocculating agent and the water is 2-3 minutes, the sewage purification and adsorption effects of sludge residues can be further realized, bacteria and algae garbage in the sewage can be removed by the bactericidal algicide, the ratio of the bactericidal algicide to the water is 2:1, the mixing temperature of the bactericidal algicide and the water is 30-40 ℃, the mixing time of the bactericidal algicide and the water is 1-2 minutes, the ratio of the polyacrylamide, the flocculating agent, the bactericidal algicide and the sludge residues is 2:3, 1:2 and 1:1 respectively, the sewage treatment effect of the sludge residues is improved, and the stirring speed of the second stirring tank is 100 circles per minute.
Step six:
all the mixtures in the second stirring tank are poured into the wastewater tank, so that the wastewater in the wastewater tank, which can be obtained by the sludge residue mixtures, can be purified, the using amount of chemical materials is reduced, and the cost of sewage treatment is reduced.
Example two
A method for preparing a water treatment agent by using sludge residues comprises the following steps:
discharging sludge residues containing wastewater into a first sedimentation tank, standing for 0.5-2 hours, discharging wastewater at the top of the sludge residues, discharging the wastewater into a wastewater tank, arranging a stirring device in the wastewater tank, stirring at the speed of 20 circles per minute, placing the sludge residues into a drying furnace, drying at the temperature of 800 ℃ for 5-6 hours, separating the wastewater containing the sludge residues through the first sedimentation tank, and thus obtaining sludge residues with low water content, and drying the sludge residues in the drying furnace to carbonize the sludge residues;
step two:
adding concentrated sulfuric acid and concentrated hydrochloric acid into a first stirring tank, wherein the volume ratio of the concentrated sulfuric acid to the concentrated hydrochloric acid is 9-15%, the concentration of the concentrated sulfuric acid is 80-95%, the concentration of the concentrated hydrochloric acid is 30-35%, the stirring time is 3-5 minutes, the stirring temperature is 100-120 ℃, the volatility of the hydrochloric acid is high, and hydrochloric acid is mainly used;
step three:
putting the dried sludge residue into a second stirring tank, pouring concentrated sulfuric acid and a concentrated hydrochloric acid compound into the first stirring tank, wherein the ratio of the sludge residue to the concentrated sulfuric acid to the concentrated hydrochloric acid compound is 10: 1, adding water, wherein the ratio of water to sludge residue is 5:1, starting a first stirring tank to stir sludge residues for 10-20 minutes, pouring hydrochloric acid and sulfuric acid into the sludge residues, neutralizing the sludge residues, and accelerating the stirring speed of a second stirring tank for neutralizing physical residues and hydrochloric acid and sulfuric acid to be 100 circles per minute;
step four:
adding an adsorption decolorant, polyacrylamide, a flocculating agent and a sterilization algicide into a second stirring tank, wherein the ratio of the adsorption decolorant to sludge residues is 1:30, continuously stirring the second stirring tank for 5-10 minutes, the rotation speed of the first stirring tank is 50 circles per minute, the stirring speed of the second stirring tank is 100 circles per minute, the adsorption decolorant is added into the sludge residues, the adsorption of the sludge residues can be improved, the polyacrylamide can be used for coagulation and clarification of suspended particles in sewage, after the flocculating agent is dissolved in water, fine particles and natural colloidal particles in the water can be coagulated into large floccules, the floccules are removed from the water and used for purifying the sewage, the ratio of the polyacrylamide to the water is 0.5:1, the temperature for mixing the polyacrylamide with the water is 20-30 ℃, and the time for mixing the polyacrylamide with the water is 5-10 minutes, the ratio of the flocculating agent to the water is 1:1, the mixing temperature of the flocculating agent and the water is 30-40 ℃, the mixing time of the flocculating agent and the water is 2-3 minutes, the sewage purification and adsorption effects of sludge residues can be further realized, the bacteria and algae garbage in the sewage can be removed by the bactericidal algicide, the ratio of the bactericidal algicide to the water is 2:1, the mixing temperature of the bactericidal algicide and the water is 30-40 ℃, the mixing time of the bactericidal algicide and the water is 1-2 minutes, the ratio of the polyacrylamide, the flocculating agent, the bactericidal algicide and the sludge residues is 2:3, 1:2 and 1:1 respectively, the sewage treatment effect of the sludge residues is improved, the stirring speed of the second stirring tank is 100 circles per minute, calcium oxide, hydrochloric acid and sulfuric acid are not added into the sludge residues for neutralization, so that the sludge residues can be neutralized with the sewage with higher alkalinity, thereby achieving the effect of balancing the pH value of the sewage.
EXAMPLE III
A method for preparing a water treatment agent by using sludge residues comprises the following steps:
discharging sludge residues containing wastewater into a first sedimentation tank, standing for 0.5-2 hours, discharging wastewater at the top of the sludge residues, discharging the wastewater into a wastewater tank, arranging a stirring device in the wastewater tank, stirring at the speed of 20 circles per minute, placing the sludge residues into a drying furnace, drying at the temperature of 800 ℃ for 5-6 hours, separating the wastewater containing the sludge residues through the first sedimentation tank, and thus obtaining sludge residues with low water content, and drying the sludge residues in the drying furnace to carbonize the sludge residues;
step two:
putting the dried sludge residue into a second stirring tank, pouring concentrated sulfuric acid and a concentrated hydrochloric acid compound into the first stirring tank, wherein the ratio of the sludge residue to the concentrated sulfuric acid to the concentrated hydrochloric acid compound is 10: 1, adding water, wherein the ratio of water to sludge residue is 5:1, starting a first stirring tank to stir sludge residues for 10-20 minutes, pouring hydrochloric acid and sulfuric acid into the sludge residues, neutralizing the sludge residues, and accelerating the stirring speed of a second stirring tank for neutralizing physical residues and hydrochloric acid and sulfuric acid to be 100 circles per minute;
step three:
and then adding a mixture of calcium hydroxide and water into the stirring tank II, wherein the ratio of the calcium hydroxide to the water is 1: 10, the ratio of sludge residue to the mixture of calcium hydroxide and water 10: 1, continuously stirring for 10-20 minutes, and adding calcium hydroxide into the sludge residue to neutralize the sludge residue so as to neutralize the pH value of the sludge residue;
step four:
adding an adsorption decolorant, polyacrylamide, a flocculating agent and a sterilization algicide into a second stirring tank, wherein the ratio of the adsorption decolorant to sludge residues is 1:30, continuously stirring the second stirring tank for 5-10 minutes, the rotation speed of the first stirring tank is 50 circles per minute, the stirring speed of the second stirring tank is 100 circles per minute, the adsorption decolorant is added into the sludge residues, the adsorption of the sludge residues can be improved, the polyacrylamide can be used for coagulation and clarification of suspended particles in sewage, after the flocculating agent is dissolved in water, fine particles and natural colloidal particles in the water can be coagulated into large floccules, the floccules are removed from the water and used for purifying the sewage, the ratio of the polyacrylamide to the water is 0.5:1, the temperature for mixing the polyacrylamide with the water is 20-30 ℃, and the time for mixing the polyacrylamide with the water is 5-10 minutes, the ratio of the flocculating agent to the water is 1:1, the mixing temperature of the flocculating agent and the water is 30-40 ℃, the mixing time of the flocculating agent and the water is 2-3 minutes, the sewage purification and adsorption effects of sludge residues can be further realized, the bacteria and algae garbage in the sewage can be removed by the bactericidal algicide, the ratio of the bactericidal algicide to the water is 2:1, the mixing temperature of the bactericidal algicide and the water is 30-40 ℃, the mixing time of the bactericidal algicide and the water is 1-2 minutes, the ratio of the polyacrylamide, the flocculating agent, the bactericidal algicide and the sludge residues is 2:3, 1:2 and 1:1 respectively, the sewage treatment effect of the sludge residues is improved, the stirring speed of a second stirring tank is 100 circles per minute, hydrochloric acid and sulfuric acid are not added into the sludge residues, the sludge residues are neutralized, and therefore the sludge can be neutralized with the sewage with high acidity, thereby achieving the effect of balancing the pH value of the sewage.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A method for preparing a water treatment medicament by using sludge residues is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps:
discharging sludge residues containing wastewater into a first sedimentation tank, standing for 0.5-2 hours, discharging wastewater at the top of the sludge residues, discharging the wastewater into a wastewater tank, placing the sludge residues into a drying furnace, and drying at 800 ℃ for 5-6 hours;
step two:
adding concentrated sulfuric acid and concentrated hydrochloric acid into a first stirring tank, wherein the volume ratio of the concentrated sulfuric acid to the concentrated hydrochloric acid is 9-15%, stirring time is 3-5 minutes, and stirring temperature is 100-120 ℃;
step three:
putting the dried sludge residue into a second stirring tank, pouring concentrated sulfuric acid and a concentrated hydrochloric acid compound into the first stirring tank, wherein the ratio of the sludge residue to the concentrated sulfuric acid to the concentrated hydrochloric acid compound is 10: 1, adding water, wherein the ratio of water to sludge residue is 5:1, starting a first stirring tank to stir sludge residues for 10-20 minutes;
step four:
and then adding a mixture of calcium hydroxide and water into the stirring tank II, wherein the ratio of the calcium hydroxide to the water is 1: 10, the ratio of sludge residue to the mixture of calcium hydroxide and water 10: 1, continuously stirring for 10-20 minutes;
step five:
adding an adsorption decolorant, polyacrylamide, a flocculating agent and a sterilization algicide into the second stirring tank, wherein the ratio of the adsorption decolorant to the sludge residue is 1:30, and continuing stirring in the second stirring tank for 5-10 minutes;
step six:
all the mixture in the stirring tank II is poured into a wastewater pool.
2. The method for preparing water treatment agent using sludge residue as claimed in claim 1, wherein: the speed of the first stirring tank is 50 circles per minute.
3. The method for preparing water treatment agent using sludge residue as claimed in claim 1, wherein: the stirring speed of the second stirring tank is 100 circles per minute.
4. The method for preparing water treatment agent using sludge residue as claimed in claim 1, wherein: the inside of wastewater disposal basin is provided with agitating unit, and the speed of stirring is 20 rings per minute.
5. The method for preparing water treatment agent using sludge residue as claimed in claim 1, wherein: the ratio of the polyacrylamide to the water is 0.5:1, the mixing temperature of the polyacrylamide and the water is 20-30 ℃, and the mixing time of the polyacrylamide and the water is 5-10 minutes.
6. The method for preparing water treatment agent using sludge residue as claimed in claim 1, wherein: the ratio of the flocculating agent to the water is 1:1, the mixing temperature of the flocculating agent and the water is 30-40 ℃, and the mixing time of the flocculating agent and the water is 2-3 minutes.
7. The method for preparing water treatment agent using sludge residue as claimed in claim 1, wherein: the ratio of the bactericidal algicide to the water is 2:1, the mixing temperature of the bactericidal algicide and the water is 30-40 ℃, and the mixing time of the bactericidal algicide and the water is 1-2 minutes.
8. The method for preparing water treatment agent using sludge residue as claimed in claim 1, wherein: the concentrated sulfuric acid has a concentration of 80-95% and the concentrated hydrochloric acid has a concentration of 30-35%.
9. The method for preparing water treatment agent using sludge residue as claimed in claim 1, wherein: the proportions of the polyacrylamide, the flocculating agent, the bactericidal algicide and the sludge residue are respectively 2:3, 1:2 and 1: 1.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09315809A (en) * | 1996-03-27 | 1997-12-09 | Kawasaki Steel Corp | Production of activated carbon and treatment of organic waste water by utilizing the activated carbon |
| CN1603244A (en) * | 2004-10-26 | 2005-04-06 | 哈尔滨工业大学 | Preparation method of sludge adsorbent and method for intensified processing domestic sewage using the same |
| CN101066827A (en) * | 2007-06-05 | 2007-11-07 | 台州盛世环境工程有限公司 | Electroplating sludge treating and utilizing process |
| CN101125689A (en) * | 2007-07-13 | 2008-02-20 | 绍兴水处理发展有限公司 | Method for preparing water treatment medicament by using sludge residue and water treatment medicament thereof |
| CN101591055A (en) * | 2009-06-03 | 2009-12-02 | 东华大学 | The method of printing and dyeing sludge firing product and acid leaching liquor intensive treatment dyeing waste water thereof |
| CN105906011A (en) * | 2016-06-14 | 2016-08-31 | 河南城建学院 | Method for preparing flocculant from water treatment plant sludge and application of flocculant to algae removal |
| CN112661385A (en) * | 2020-12-31 | 2021-04-16 | 江苏大学 | Treatment method for deep dehydration of sludge |
-
2021
- 2021-05-17 CN CN202110536770.8A patent/CN113213564A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09315809A (en) * | 1996-03-27 | 1997-12-09 | Kawasaki Steel Corp | Production of activated carbon and treatment of organic waste water by utilizing the activated carbon |
| CN1603244A (en) * | 2004-10-26 | 2005-04-06 | 哈尔滨工业大学 | Preparation method of sludge adsorbent and method for intensified processing domestic sewage using the same |
| CN101066827A (en) * | 2007-06-05 | 2007-11-07 | 台州盛世环境工程有限公司 | Electroplating sludge treating and utilizing process |
| CN101125689A (en) * | 2007-07-13 | 2008-02-20 | 绍兴水处理发展有限公司 | Method for preparing water treatment medicament by using sludge residue and water treatment medicament thereof |
| CN101591055A (en) * | 2009-06-03 | 2009-12-02 | 东华大学 | The method of printing and dyeing sludge firing product and acid leaching liquor intensive treatment dyeing waste water thereof |
| CN105906011A (en) * | 2016-06-14 | 2016-08-31 | 河南城建学院 | Method for preparing flocculant from water treatment plant sludge and application of flocculant to algae removal |
| CN112661385A (en) * | 2020-12-31 | 2021-04-16 | 江苏大学 | Treatment method for deep dehydration of sludge |
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