CN105036282A - Sewage treatment agent and usage method therefor - Google Patents
Sewage treatment agent and usage method therefor Download PDFInfo
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- CN105036282A CN105036282A CN201510397267.3A CN201510397267A CN105036282A CN 105036282 A CN105036282 A CN 105036282A CN 201510397267 A CN201510397267 A CN 201510397267A CN 105036282 A CN105036282 A CN 105036282A
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- sewage
- reagent
- agent
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- Treatment Of Water By Oxidation Or Reduction (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
Provided by the present invention is a sewage treatment agent. The sewage treatment agent comprises an early reaction agent and a late flocculant. The reaction agent contains chemical components of H2SO4 and FeSO4, wherein the mass ratio of Fe2+ to H+ in the agent is 0.75:1.20. The flocculant contains chemical components of SiO2, NaOH and PAM, wherein the mass ratio of SiO2 to NaOH to PAM is 3: 2: 1. The early reaction agent is added into an agent blending tank for blending. To-be-treated sewage reacts and then enters into a decoloring aeration tank; the treated water is aerated for 30-40 mins in the aeration tank; then, the flocculant is added; the treated sewage after the reaction enters into a final precipitation tank for such late reactions as precipitation; and precipitated mud is sent into a dewatering house and a supernatant liquid is discharged. By adding the agent disclosed by the invention, PH adjustment before treatment is performed simultaneously with the reaction agent, and PH adjustment after treatment is performed simultaneously with the flocculant. The sewage treatment agent and usage method provided by the invention have the advantages of shortening procedures, convenient operation and reducing consumption, and can meet different sewage treatment requirements.
Description
Technical field
The present invention relates to sewage treatment industry, a kind ofly specifically realize the chemical reagent of high-efficiency sewage process and the using method of this sewage disposal reagent.
Background technology
Current sewage disposal Fenton process used adopts and first regulates sewage PH value, then adds Fe
2+, finally add hydrogen peroxide and react, reaction conditions pH value is 3-3.5, finally carries out PH readjustment to reach GB emission request.Show technical process in use procedure long, reference mark is many, and control difficulty large, the shortcomings such as acid, hydrogen peroxide, ferrous iron and quantity of alkali consumption are large, exist because the PH short period of time significantly changes simultaneously, in water remain Fe
3+cannot sink completely and return look phenomenon except causing water body.
Summary of the invention
The present invention be directed to the many defects existed in background technology, one be to provide a kind of can shortened process, the sewage disposal reagent that reduces costs, two using method being to provide this reagent.
For achieving the above object, the technical solution used in the present invention is:
A kind of sewage disposal reagent, comprise reaction reagent and later stage flocculation agent in earlier stage, chemical composition contained by described reaction reagent is H
2sO
4and FeSO
4, Fe in this reagent
2+and H
+mass ratio be 0.75-1.20; Chemical composition contained by described flocculation agent is composition SiO
2, NaOH, PAM, their mass ratio is 3:2:1.
Described Fe
2+and H
+mass ratio, determine, during PH=7.0-8.5 according to the pH value of pending water and COD concentration: COD≤1000mg/L, Fe
2+/ H
+=0.75; COD1000-2000mg/L, Fe
2+/ H
+=0.8-1.1; COD>=2000mg/L, Fe
2+/ H
+=1.20.
The using method of sewage disposal reagent:
A, chemical composition needed for early stage reaction reagent is added in reagent blend tank and allocates, meet required ratio to its composition;
B, pending sewage enter decolouring aeration tank after dashpot-transferpump-decoloring reaction tower reaction, process water adding flocculation agent in aeration tank after aeration 30-40 minute, reacted process water enters in final deposition pool and carries out the late phase reactions such as precipitation, glaur sends into dehydration house, and supernatant liquor is arranged outward.
Early stage, the usage quantity of reaction reagent was 0.007-1.0m3/ ton sewage.
The usage quantity of later stage flocculation agent is 1.6kg/ ton sewage.
Compared with existing treatment process, after adding reagent disclosed in this invention, before making process, PH regulates and carries out with invention reagent simultaneously, and after process, PH regulates and carries out with flocculation agent simultaneously, there is features such as shortening flow process, convenient operation, attenuating consumption, the processing requirements of different sewage can be adapted to.
Accompanying drawing explanation
Fig. 1 is process flow diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
See accompanying drawing 1, this sewage disposal reagent disclosed in this invention, comprises reaction reagent and later stage flocculation agent in earlier stage.Contained by the reaction reagent in early stage, chemical composition is H
2sO
4and FeSO
4, Fe in this reagent
2+and H
+mass ratio be 0.75-1.20.Wherein Fe
2+and H
+mass ratio, determine, during PH=7.0-8.5 according to the pH value of pending water and COD concentration: COD≤1000mg/L, Fe
2+/ H
+=0.75; COD1000-2000mg/L, Fe
2+/ H
+=0.8-1.1; COD>=2000mg/L, Fe
2+/ H
+=1.20.
Contained by the flocculation agent that the described later stage uses, chemical composition is composition SiO
2, NaOH, PAM, the mass ratio of these three kinds of compositions is 3:2:1.
The using method of this sewage disposal reagent is as follows.
A, chemical composition needed for early stage reaction reagent is added in reagent blend tank and allocates, meet required ratio to its composition; According to treatment sewage COD content, configure reaction reagent in certain density early stage; Early stage, the usage quantity of reaction reagent was 0.007-1.0m3/ ton sewage.
B, sewage after biochemical treatment enter dashpot, add the reaction reagent solution configured, after regulating its PH=5.0-5.5, be pumped to decoloring reaction tower by sewage transport to it.In decoloring reaction tower, Fenton's reaction is carried out with the hydrogen peroxide after diluting through clear water, decolouring aeration tank is admitted to after removing most of organism, the abundant aeration of compressed air, process water through aeration 30-40 minute, adds flocculation agent after making unnecessary decomposing hydrogen dioxide solution in aeration tank, the usage quantity of later stage flocculation agent is 1.6kg/ ton sewage, then enter final deposition pool and carry out solid-liquid separation, supernatant liquor up to standard is arranged outward, and solid is recycling after dehydration.
After present method process, water PH can reach 5.0-5.5, H
2o
2: COD mol ratio can be down to 0.20-1.5:1; By the later stage add invention flocculation agent and precipitating, water outlet can reach the discharge of one-level GB.
In earlier stage, PH regulates and adds with invention reagent simultaneously in sewage disposal, fully ensures that the height of initial reaction thing is dense, the consumption of reduction hydrogen peroxide.Hydrogen peroxide mass concentration is controlled 6%, technique initial stage Fe can be made full use of
2+high density advantage, improves speed of reaction, reduces hydrogen peroxide consumption.
In the sewage disposal later stage, by adding flocculation agent, make adjustment PH, flocculation helps heavy, suspended substance absorption three to carry out simultaneously, improve and water ph value 1.0-1.5.
Claims (5)
1. a sewage disposal reagent, comprise reaction reagent and later stage flocculation agent in earlier stage, it is characterized in that, chemical composition contained by described reaction reagent is H
2sO
4and FeSO
4, Fe in this reagent
2+and H
+mass ratio be 0.75-1.20; Chemical composition contained by described flocculation agent is composition SiO
2, NaOH, PAM, their mass ratio is 3:2:1.
2. sewage disposal reagent according to claim 1, is characterized in that, described Fe
2+and H
+mass ratio, determine, during PH=7.0-8.5 according to the pH value of pending water and COD concentration: COD≤1000mg/L, Fe
2+/ H
+=0.75; COD1000-2000mg/L, Fe
2+/ H
+=0.8-1.1; COD>=2000mg/L, Fe
2+/ H
+=1.20.
3. a using method for the sewage disposal reagent according to any one of claim 1-2, is characterized in that,
A, chemical composition needed for early stage reaction reagent is added in reagent blend tank and allocates, meet required ratio to its composition;
B, pending sewage enter decolouring aeration tank after dashpot-transferpump-decoloring reaction tower reaction, process water adding flocculation agent in aeration tank after aeration 30-40 minute, reacted process water enters in final deposition pool and carries out the late phase reactions such as precipitation, glaur sends into dehydration house, and supernatant liquor is arranged outward.
4. the using method of sewage-treating agent according to claim 3, is characterized in that, described early stage, the usage quantity of reaction reagent was 0.007-1.0m3/ ton sewage.
5. the using method of sewage-treating agent according to claim 3, is characterized in that, the usage quantity of described later stage flocculation agent is 1.6kg/ ton sewage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510397267.3A CN105036282A (en) | 2015-07-09 | 2015-07-09 | Sewage treatment agent and usage method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510397267.3A CN105036282A (en) | 2015-07-09 | 2015-07-09 | Sewage treatment agent and usage method therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105036282A true CN105036282A (en) | 2015-11-11 |
Family
ID=54443334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510397267.3A Pending CN105036282A (en) | 2015-07-09 | 2015-07-09 | Sewage treatment agent and usage method therefor |
Country Status (1)
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|---|---|
| CN (1) | CN105036282A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107572610A (en) * | 2017-10-10 | 2018-01-12 | 佛山市顺德区伟润环保科技实业有限公司 | Black and odorous water inorganic agent and its application method |
| CN109626663A (en) * | 2019-01-31 | 2019-04-16 | 光大水务科技发展（南京）有限公司 | A kind of method of Fenton oxidation water outlet post-processing |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1303821A (en) * | 2000-01-11 | 2001-07-18 | 曾智勇 | Nanometer ultra-high efficiency flocculating agent |
| CN102616979A (en) * | 2011-12-26 | 2012-08-01 | 上海集惠环保科技发展有限公司 | Treatment method for surface treatment liquid wastewater of metal processing |
-
2015
- 2015-07-09 CN CN201510397267.3A patent/CN105036282A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1303821A (en) * | 2000-01-11 | 2001-07-18 | 曾智勇 | Nanometer ultra-high efficiency flocculating agent |
| CN102616979A (en) * | 2011-12-26 | 2012-08-01 | 上海集惠环保科技发展有限公司 | Treatment method for surface treatment liquid wastewater of metal processing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107572610A (en) * | 2017-10-10 | 2018-01-12 | 佛山市顺德区伟润环保科技实业有限公司 | Black and odorous water inorganic agent and its application method |
| CN109626663A (en) * | 2019-01-31 | 2019-04-16 | 光大水务科技发展（南京）有限公司 | A kind of method of Fenton oxidation water outlet post-processing |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151111 |
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