CN103663652B - Preparation method of sewage treatment agent - Google Patents

Preparation method of sewage treatment agent Download PDF

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Publication number
CN103663652B
CN103663652B CN201310671593.XA CN201310671593A CN103663652B CN 103663652 B CN103663652 B CN 103663652B CN 201310671593 A CN201310671593 A CN 201310671593A CN 103663652 B CN103663652 B CN 103663652B
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CN
China
Prior art keywords
sewage
treating agent
sewage treatment
wilkinite
polyacrylamide
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Application number
CN201310671593.XA
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Chinese (zh)
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CN103663652A (en
Inventor
牟军平
于春光
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山东华亚环保科技有限公司
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Priority to CN201310671593.XA priority Critical patent/CN103663652B/en
Publication of CN103663652A publication Critical patent/CN103663652A/en
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Abstract

The invention discloses a preparation method of a sewage treatment agent. Residual activated sludge in sewage treatment is processed and then mixed with other assistants, so as to prepare the sewage treatment agent. The preparation method is simple in operation, and the prepared sewage treatment agent is low in cost, good in effect and applicable to large-scale production. By adopting the sewage treatment agent prepared by the method disclosed by the invention, the removal rate of effluent suspended solids after treatment can be up to 99.8%, the biochemical oxygen demand (BOD) removal rate is 98%, the chemical oxygen demand (COD) removal rate is 98.5%, and the chromaticity is 5.

Description

A kind of preparation method of sewage-treating agent

Technical field

The present invention relates to technical field of sewage, particularly relate to a kind of preparation method of sewage-treating agent.

Background technology

The main process of to take activated sludge process as the biologic treating technique of representative be current sanitary sewage and most of trade effluent, after the processing power decline of active sludge, the utility value of residual active sludge just reduces, and residual active sludge is generally used as farmland fertilizer etc.The sewage-treating agent etc. of main organism containing microorganism, Institute of Micro-biology's absorption and microbiota metabolic activity product in excess sludge, sludge condensation and conditioning, and some sandy soil and salt inorganics etc.The a large amount of microorganism wherein contained and polysaccharide, protein, cellulosic material, still can be used as biological sewage treatment agent in sewage disposal, play a role in sewage disposal, its cost is lower, but the residual active sludge after wastewater treatment directly uses, weak effect, therefore, how residual active sludge being recovered as efficient sewage-treating agent, is the problem needing now to solve.

Summary of the invention

Object of the present invention is exactly defect for above-mentioned existence and provides a kind of preparation method of sewage-treating agent.By the standby one-tenth of residual actived sludge in sewage disposal sewage-treating agent, effective, cost is low, is applicable to scale operation.

Preparation method's technical scheme of a kind of sewage-treating agent of the present invention is that step is as follows:

(1) sewage treatment plant residual mud is mixed with water, filter;

(2) filtrate in step (1) is added concentration be 10% hydrochloric acid condition pH be 2-4, add hydrogen peroxide simultaneously, after stirring, centrifugation;

(3) granulator granulation is entered after being mixed with silicon-dioxide, sodium-acetate, polyacrylamide, EDTA, wilkinite, ferrous sulfate by the solid matter that centrifugation in step (2) obtains.

In step (1), the filter screen filtered is 80-200 order.

The mass percent adding hydrogen peroxide in step (2) is 0.1%.

In step (2), stirring velocity is 200-500r/min, and churning time is 15-30 minute.

In step (3), solid matter and silicon-dioxide, sodium-acetate, polyacrylamide, EDTA, wilkinite, ferrous sulfate are by weight:

Beneficial effect of the present invention is: the present invention mixes with other auxiliary agents after being processed by residual active sludge in sewage disposal again, prepare sewage-treating agent, simple to operate, the sewage-treating agent cost prepared is low, to the Be very effective that the impurity in waste water flocculates, and take full advantage of residual active sludge, solve the recycling problem of residual active sludge.Sewage-treating agent prepared by the inventive method, after process, to reach 99.8%, BOD clearance be 98%, COD clearance to wastewater suspended substance clearance is 98.5%, and colourity is 5.

Embodiment:

In order to understand the present invention better, describe technical scheme of the present invention in detail with specific examples below, but the present invention is not limited thereto.

Embodiment 1

Preparation method's technical scheme of a kind of sewage-treating agent of the present invention is that step is as follows:

(1) mixed with water by sewage treatment plant residual mud, filter, the filter screen filtered is 150 orders;

(2) filtrate in step (1) is added concentration be 10% hydrochloric acid condition pH be 2-4, add the hydrogen peroxide that mass percent is 0.1%, stirring velocity is 300r/min simultaneously, after within 20 minutes, stirring, centrifugation;

(3) granulator granulation is entered after being mixed with silicon-dioxide, sodium-acetate, polyacrylamide, EDTA, wilkinite, ferrous sulfate by the solid matter that centrifugation in step (2) obtains.Wherein solid matter and silicon-dioxide, sodium-acetate, polyacrylamide, EDTA, wilkinite, ferrous sulfate are by weight:

Sewage-treating agent prepared by the inventive method, after process, to reach 99.8%, BOD clearance be 98%, COD clearance to wastewater suspended substance clearance is 98.5%, and colourity is 5.

Embodiment 2

Preparation method's technical scheme of a kind of sewage-treating agent of the present invention is that step is as follows:

(1) mixed with water by sewage treatment plant residual mud, filter, the filter screen filtered is 200 orders;

(2) filtrate in step (1) is added concentration be 10% hydrochloric acid condition pH be 2-4, add the hydrogen peroxide that mass percent is 0.1%, stirring velocity is 500r/min simultaneously, after within 15 minutes, stirring, centrifugation;

(3) granulator granulation is entered after being mixed with silicon-dioxide, sodium-acetate, polyacrylamide, EDTA, wilkinite, ferrous sulfate by the solid matter that centrifugation in step (2) obtains.Wherein solid matter and silicon-dioxide, sodium-acetate, polyacrylamide, EDTA, wilkinite, ferrous sulfate are by weight:

Sewage-treating agent prepared by the inventive method, after process, to reach 99.8%, BOD clearance be 98%, COD clearance to wastewater suspended substance clearance is 98.5%, and colourity is 5.

Embodiment 3

Preparation method's technical scheme of a kind of sewage-treating agent of the present invention is that step is as follows:

(1) mixed with water by sewage treatment plant residual mud, filter, the filter screen filtered is 80 orders;

(2) filtrate in step (1) is added concentration be 10% hydrochloric acid condition pH be 2-4, add the hydrogen peroxide that mass percent is 0.1%, stirring velocity is 200r/min simultaneously, after within 30 minutes, stirring, centrifugation;

(3) granulator granulation is entered after being mixed with silicon-dioxide, sodium-acetate, polyacrylamide, EDTA, wilkinite, ferrous sulfate by the solid matter that centrifugation in step (2) obtains.Wherein solid matter and silicon-dioxide, sodium-acetate, polyacrylamide, EDTA, wilkinite, ferrous sulfate are by weight:

Sewage-treating agent prepared by the inventive method, after process, to reach 99.8%, BOD clearance be 98%, COD clearance to wastewater suspended substance clearance is 98.5%, and colourity is 5.

Claims (4)

1. a preparation method for sewage-treating agent, is characterized in that, step is as follows:
(1) sewage treatment plant residual mud is mixed with water, filter;
(2) filtrate in step (1) is added the hydrochloric acid that concentration is 10%, adjustment pH is 2-4, adds hydrogen peroxide simultaneously, after stirring, and centrifugation;
(3) granulator granulation is entered after being mixed with silicon-dioxide, sodium-acetate, polyacrylamide, EDTA, wilkinite, ferrous sulfate by the solid matter that centrifugation in step (2) obtains;
In step (3), solid matter and silicon-dioxide, sodium-acetate, polyacrylamide, EDTA, wilkinite, ferrous sulfate are by weight:
Solid matter 100
Silica 1 5-20
Sodium-acetate 5-30
Polyacrylamide 20-40
EDTA 10-20
Wilkinite 10-15
Ferrous sulfate 5-10.
2. the preparation method of a kind of sewage-treating agent according to claim 1, is characterized in that, in step (1), the filter screen filtered is 80-200 order.
3. the preparation method of a kind of sewage-treating agent according to claim 1, is characterized in that, the mass percent adding hydrogen peroxide in step (2) is 0.1%.
4. the preparation method of a kind of sewage-treating agent according to claim 1, is characterized in that, in step (2), stirring velocity is 200-500r/min, and churning time is 15-30 minute.
CN201310671593.XA 2013-12-11 2013-12-11 Preparation method of sewage treatment agent CN103663652B (en)

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Application Number Priority Date Filing Date Title
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CN103663652B true CN103663652B (en) 2015-04-08

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Families Citing this family (15)

* Cited by examiner, † Cited by third party
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CN104071880A (en) * 2014-06-27 2014-10-01 南昌格润环保科技有限公司 Extensive wastewater treatment capture agent
CN104192965B (en) * 2014-09-19 2016-05-25 冯进器 A kind for the treatment of agent for papermaking wastewater
CN104291391A (en) * 2014-09-23 2015-01-21 博瑞德(南京)净化技术有限公司 Dyeing sewage treating agent and application method thereof
CN105906006B (en) * 2015-10-16 2018-08-17 湖北文理学院 A kind of preparation method of living drainage inorganic agent
CN105923731B (en) * 2015-10-16 2018-08-17 湖北文理学院 A kind of preparation method of industrial water drainage inorganic agent
CN105439268A (en) * 2015-12-16 2016-03-30 无锡吉进环保科技有限公司 Preparation method of novel sewage processing agent
CN106256769B (en) * 2015-12-30 2019-05-03 湖北文理学院 A kind of preparation method of trade effluent detergent
CN106335989B (en) * 2015-12-30 2019-05-03 湖北文理学院 A kind of preparation method of sanitary sewage detergent
CN105776468A (en) * 2016-03-16 2016-07-20 徐亚萍 Preparation method of sewage cleansing agent
CN106115810A (en) * 2016-07-29 2016-11-16 无锡信大气象传感网科技有限公司 A kind of sewage-treating agent and preparation method thereof
CN106186104A (en) * 2016-08-24 2016-12-07 米桂琼 A kind of preparation method of alkaline sewage inorganic agent
CN106186105A (en) * 2016-08-24 2016-12-07 米桂琼 A kind of preparation method of alkaline sewage inorganic agent
CN106315874A (en) * 2016-09-21 2017-01-11 芜湖扬展新材料科技服务有限公司 High-efficient composite powder-shaped sewage treating agent for desizing waste water and preparation method thereof
CN106277257A (en) * 2016-09-21 2017-01-04 芜湖扬展新材料科技服务有限公司 Efficient composite powdery sewage-treating agent for desized wastewater and preparation method thereof
CN106315803A (en) * 2016-09-21 2017-01-11 芜湖扬展新材料科技服务有限公司 Composite powder-shaped sewage treating agent for PVA (polyvinyl alcohol) desizing waste water and preparation method thereof

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Publication number Priority date Publication date Assignee Title
US6203711B1 (en) * 1999-05-21 2001-03-20 E. I. Du Pont De Nemours And Company Method for treatment of substantially aqueous fluids derived from processing inorganic materials
CN101254959B (en) * 2008-03-25 2010-07-28 浙江华特新材料股份有限公司 Bentonite sewage water treating method
CN101885526B (en) * 2009-05-16 2011-12-21 兰州大欣水工业有限责任公司 Ternary composite type flocculant, preparation and application

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Inventor after: Yan Shouwen

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Address before: 250199 Shandong Province, Licheng District, Ji'nan Huaxin Road, building 389, No. 601

Patentee before: SHANDONG HWAYA ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD.

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Free format text: CORRECT: INVENTOR; FROM: MOU JUNPING YU CHUNGUANG TO: YAN SHOUWEN LI LIANGHUA

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