CN102897952A - Treatment method for oxidation wastewater recovery - Google Patents
Treatment method for oxidation wastewater recovery Download PDFInfo
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- CN102897952A CN102897952A CN2012104475956A CN201210447595A CN102897952A CN 102897952 A CN102897952 A CN 102897952A CN 2012104475956 A CN2012104475956 A CN 2012104475956A CN 201210447595 A CN201210447595 A CN 201210447595A CN 102897952 A CN102897952 A CN 102897952A
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Abstract
The invention provides a treatment method for oxidation wastewater recovery. The treatment method comprises the steps of: (1) pre-treatment of a waste groove liquid; 2) acid-base mixing; 3) neutralizing and dosing; 4) filtering; 5) rough filtration and refined filtration; and 6) sludge treatment. With the adoption of the treatment method provided by the invention, a special discharging pipeline and a storage pool can be built for the waste groove liquid. Meanwhile, the independent pre-treatment can be conducted on the acid-base waste groove liquid, so that the problem that a wastewater storage pool and a wastewater treatment system have large load can be solved, and the zero emission of the acid-base waste liquid can be realized.
Description
Technical field
The invention belongs to the field of Industrial Wastewater Treatment regeneration, the treatment process that particularly reclaims about oxidized waste water.
Background technology
At present, the method that the domestic industry wastewater treatment is adopted is that the simple pH value waste water is adjusted near just directly discharging after the neutral value, rather than recycle.This will cause very large waste to water resources.China is one of country of a water resources shortage in the world, and therefore rationally the recycle trade effluent seems particularly important.
Summary of the invention
6) for above deficiency, the treatment process that the object of the present invention is to provide a kind of oxidized waste water to reclaim is acid, alkali to be given up mix after tank liquor separates the pre-treatment storage, neutralization, filtration, and clear liquid recycles, the mud compound stalk forming.
Technical scheme of the present invention is achieved in the following ways: the treatment process that a kind of oxidized waste water reclaims may further comprise the steps: 1) useless tank liquor pre-treatment, 2) soda acid mix, 3) in and dosing, 4) filter, 5) coarse filtration, smart filter, 6) sludge treatment; By percentage to the quality, it is characterized in that:
1), useless tank liquor pre-treatment: according to the emission treatment standard of useless tank liquor, set up discharge tube, acid, the useless tank liquor of alkali are separated pre-treatment and store, the spent acid storage pool is 20m
3, the salkali waste storage pool is 15m
3, and carry out rotproofing;
2), soda acid mixes: will adopt independent oblique slot to enter reaction tank through the useless tank liquor of the acid that pre-treatment stores and the useless tank liquor of alkali and carry out the soda acid mixing, with agitator the soda acid mixed solution is constantly stirred, slowly add milk of lime or alkali lye, pH value in the conditioned reaction pond, scope control is at 7.5-8.0;
Occur coloured change in the described soda acid mixed solution, then will add the M-180 bleaching agent bleaching, the lysate concentration of discoloring agent is controlled between 10%-20%, and the water distribution temperature is 20.℃。
Described milk of lime can not be used sand grains and other foreign material with, allows liming be dissolved in water during preparation and forms Ca (OH)
2Solution, concentration is controlled between the 30%-40%.
3), and dosing: by negative pressure before the pump tap water is risen to tube settler, put in the soda acid mixed solution at the poly-bright rare acid amides coagulant solution of inlet channel adding of pump simultaneously, simultaneously drop into during input, one side stirs, prevent poly-bright rare acid amides flocculation agent powder agglomates, treat that whole dissolvings can use;
The surface-area of described tube settler is 14*7m, and processing power is 2.0m
3/ m
2.h.
The preparation of described poly-bright rare acid amides coagulant solution: put into tap water in the Preparation tank, the concentration by 0.08% adds poly-bright rare acid amides flocculation agent.
4) filter: the soda acid mixed solution through precipitation adopts one-level gravity quartz filter to carry out solid-liquid separation, and the top clear liquor directly enters intermediate pool, and bottom mud regularly enters sludge sump;
5) coarse filtration, smart filter: the clear liquor that enters intermediate pool through the scuttlebutt water pump lifting to mechanical coarse filter, the water that filters filters through fine filter again, make the pH value reach 6.5-8.0, qualified clear water is through open-channel meter, for the groove group clean water basin before oxidation and the spraying, also can be used as recirculated water and use;
The clear liquor of described intermediate pool, the pH value splashes into dilute sulphuric acid and adjusts back greater than 8.5 o'clock (being that meta-alkali exceeds standard), and Effluent criteria filters through strainer after reaching 6.5-8.0 again, enters at last clean water basin.
7) sludge treatment: with step 4) middle and lower part mud is squeezed into plate-and-frame filter press with spiral pump, comes compound stalk forming with concentration tank.
The present invention by useless tank liquor is set up special discharge tube and storage pool, implements independent pre-treatment to the useless tank liquor of soda acid simultaneously, to solve the excessive problem of waste water storage pool and Waste Water Treatment load, realizes the acid-base waste fluid zero release.
Description of drawings
Fig. 1 is process flow sheet of the present invention.
Embodiment
The treatment process that a kind of oxidized waste water reclaims by percentage to the quality, may further comprise the steps:
1, useless tank liquor pre-treatment: according to the emission treatment standard of useless tank liquor, set up discharge tube, acid, the useless tank liquor of alkali are separated pre-treatment and store, the spent acid storage pool is 20m
3, the salkali waste storage pool is 15m
3, and carry out rotproofing;
2, soda acid mixes: will adopt oblique slot separately soda acid to be mixed through the useless tank liquor of the acid that pre-treatment stores and the useless tank liquor of alkali, with agitator the soda acid mixed solution is constantly stirred, slowly add milk of lime or alkali lye, regulate the pH value in the successive reaction pond, scope control is at 7.5-8.0; Coloured change in the soda acid mixed solution then will add the M-180 bleaching agent bleaching, and its lysate concentration is controlled between 10%-20%, 20 ℃ of water distribution optimal temperatures.
Milk of lime can not be used sand grains and other foreign material with, prevents from during preparation that liming from splashing to hurt sb.'s feelings, and should constantly stir during preparation, fully allows liming be dissolved in the water, and becomes Ca (OH)
2Solution, concentration is controlled between the 30%-40%.
3, in and dosing: negative pressure directly drops into poly-bright rare acid amides flocculation agent before adopting simple pump, and mixes with water pump impeller; Namely by pump tap water is risen to tube settler, the surface-area of tube settler is 14*7m, and processing power is 2.0m
3/ m
2.h.Inlet channel at pump adds poly-bright rare acid amides flocculation agent simultaneously, the preparation of poly-bright rare acid amides coagulant solution: put into tap water in the Preparation tank, it is the PAM powder that concentration by 0.08% adds poly-bright rare acid amides flocculation agent, add fashionable can not the input in a large number, one side drops into, one side stirs, and prevents the PAM powder agglomates, treats that whole dissolvings can use.
4, filter: the waste water through precipitation adopts one-level gravity quartz filter to carry out solid-liquid separation, the top clear liquor directly enters intermediate pool, the clear liquor of intermediate pool, the pH value was greater than 8.5 o'clock (being that meta-alkali exceeds standard), need splash into dilute sulphuric acid adjusts back, Effluent criteria will reach 6.5-8.0, and then filters through strainer, enters at last clean water basin.Bottom mud regularly enters sludge sump;
5, coarse filtration, smart filter: the clear liquor that enters intermediate pool through the scuttlebutt water pump lifting to mechanical coarse filter, the water that filters filters through fine filter again, the pH value reaches 6.5-8.0, qualified clear water is through open-channel meter, for the groove group cleaning sink before oxidation and the spraying, also can be used as recirculated water and use;
6, sludge treatment: will squeeze into plate-and-frame filter press with spiral pump in the sludge sump in the step 4, come compound stalk forming with concentration tank.Unclamp pressure strip during desliming, again the filter plate block-by-block is removed certain interval, shake off the mud of mummification, after all filter plate is shaken off, again filter plate is set back, and by the again press filtration of pressure strip compression, after dewatered sludge is thrown off, before the filter press plate homing, that filter cloth is floating, two inferior horns of filter cloth are not turned up, and avoid mud to emerge from the folding of filter cloth with the hole after turning up.When pressure filter press filtration one-period overlong time, unload filter cloth, with warm water (cloth is above 40 ℃) and in water, add slightly salt acid soak a few hours, then scrub with scrubbing brush, dirt in the filter cloth hole is eliminated, and then rinsing is clean in clear water, avoids filter cloth gauffer to occur.
Claims (6)
1. the treatment process that reclaims of an oxidized waste water may further comprise the steps: 1) useless tank liquor pre-treatment, 2) soda acid mix, 3) in and dosing, 4) filter, 5) coarse filtration, smart filter, 6) sludge treatment; By percentage to the quality, it is characterized in that:
1), useless tank liquor pre-treatment: according to the emission treatment standard of useless tank liquor, set up discharge tube, acid, the useless tank liquor of alkali are separated pre-treatment and store, the spent acid storage pool is 20m
3, the salkali waste storage pool is 15m
3, and carry out rotproofing;
2), soda acid mixes: will adopt independent oblique slot to enter reaction tank through the useless tank liquor of the acid that pre-treatment stores and the useless tank liquor of alkali and carry out the soda acid mixing, with agitator the soda acid mixed solution is constantly stirred, slowly add milk of lime or alkali lye, pH value in the conditioned reaction pond, scope control is at 7.5-8.0;
3), and dosing: by negative pressure before the pump tap water is risen to tube settler, put in the soda acid mixed solution at the poly-bright rare acid amides coagulant solution of inlet channel adding of pump simultaneously, simultaneously drop into during input, one side stirs, prevent poly-bright rare acid amides flocculation agent powder agglomates, treat that whole dissolvings can use;
4) filter: the soda acid mixed solution through precipitation adopts one-level gravity quartz filter to carry out solid-liquid separation, and the top clear liquor directly enters intermediate pool, and bottom mud regularly enters sludge sump;
5) coarse filtration, smart filter: the clear liquor that enters intermediate pool through the scuttlebutt water pump lifting to mechanical coarse filter, the water that filters filters through fine filter again, make the pH value reach 6.5-8.0, qualified clear water is through open-channel meter, for the groove group clean water basin before oxidation and the spraying, also can be used as recirculated water and use;
6) sludge treatment: with step 4) middle and lower part mud is squeezed into plate-and-frame filter press with spiral pump, comes compound stalk forming with concentration tank.
2. the treatment process that reclaims of a kind of oxidized waste water according to claim 1, it is characterized in that: occur coloured change in the soda acid mixed solution described step 2), then will add the M-180 bleaching agent bleaching, the lysate concentration of discoloring agent is controlled between 10%-20%, and the water distribution temperature is 20 ℃.
3. the treatment process that reclaims of a kind of oxidized waste water according to claim 1, it is characterized in that: the milk of lime described step 2) can not be used sand grains and other foreign material with, allows liming be dissolved in water during preparation and forms Ca (OH)
2Solution, concentration is controlled between the 30%-40%.
4. the treatment process that reclaims of a kind of oxidized waste water according to claim 1, it is characterized in that: the surface-area of the tube settler described step 3) is 14*7m, processing power is 2.0m
3/ m
2.h.
5. the treatment process that reclaims of a kind of oxidized waste water according to claim 1, it is characterized in that: the preparation of the poly-bright rare acid amides coagulant solution described step 3): put into tap water in the Preparation tank, the concentration by 0.08% adds poly-bright rare acid amides flocculation agent.
6. the treatment process that reclaims of a kind of oxidized waste water according to claim 1, it is characterized in that: the clear liquor of the intermediate pool described step 5), the pH value was greater than 8.5 o'clock, splashing into dilute sulphuric acid adjusts back, Effluent criteria filters through strainer after reaching 6.5-8.0 again, enters at last clean water basin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104475956A CN102897952A (en) | 2012-11-07 | 2012-11-07 | Treatment method for oxidation wastewater recovery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104475956A CN102897952A (en) | 2012-11-07 | 2012-11-07 | Treatment method for oxidation wastewater recovery |
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| Publication Number | Publication Date |
|---|---|
| CN102897952A true CN102897952A (en) | 2013-01-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106995249A (en) * | 2017-05-31 | 2017-08-01 | 浙江冶金环境保护设计研究有限公司 | A kind of segmentation combination treatment method of acid, the useless tank liquor of alkali cleaning |
| CN108298619A (en) * | 2018-03-02 | 2018-07-20 | 徐奎元 | Industrial sewage process method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1951839A (en) * | 2006-11-17 | 2007-04-25 | 辽宁三和环境工程有限公司 | Method and apparatus for treating acid and alkaline waste water |
-
2012
- 2012-11-07 CN CN2012104475956A patent/CN102897952A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1951839A (en) * | 2006-11-17 | 2007-04-25 | 辽宁三和环境工程有限公司 | Method and apparatus for treating acid and alkaline waste water |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106995249A (en) * | 2017-05-31 | 2017-08-01 | 浙江冶金环境保护设计研究有限公司 | A kind of segmentation combination treatment method of acid, the useless tank liquor of alkali cleaning |
| CN108298619A (en) * | 2018-03-02 | 2018-07-20 | 徐奎元 | Industrial sewage process method |
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Application publication date: 20130130 |