CN203128332U - Acidic industrial wastewater treatment system - Google Patents
Acidic industrial wastewater treatment system Download PDFInfo
- Publication number
- CN203128332U CN203128332U CN 201320051169 CN201320051169U CN203128332U CN 203128332 U CN203128332 U CN 203128332U CN 201320051169 CN201320051169 CN 201320051169 CN 201320051169 U CN201320051169 U CN 201320051169U CN 203128332 U CN203128332 U CN 203128332U
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- neutralization reaction
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- wastewater
- pond
- treatment
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Abstract
The utility model discloses an acidic industrial wastewater treatment system which comprises a wastewater conveying pipeline, a wastewater adjusting pool, a neutralization reaction pool and a settling pond. The system is characterized by further comprising a pre-treatment pool. The wastewater conveying pipeline is connected with the pre-treatment pool which is internally provided with a first aerating device. The output end of the pre-treatment pool is connected with the input end of the wastewater adjusting pool. A second aerating device is arranged in the wastewater adjusting pool. The output end of the wastewater adjusting pool is connected with the input end of the neutralization reaction pool which is internally provided with a stirrer. The output end of the neutralization reaction pool is connected with the input end of the settling pond which is internally provided with a sludge discharge port and a water outlet. According to the system, the pre-treatment pool with the aerating devices is arranged and appropriate calcium carbonate particles are cast into the pre-treatment pools to remove free acid in wastewater so as to settle a part of fluorides and improve the pH value of wastewater, so that the purpose of reducing the alkaline agent addition in subsequent treatment processes and reducing the amount of sludge is realized.
Description
Technical field
The utility model relates to the acidic industrial effluent treatment system.
Background technology
Cold-rolling stainless steel, silicon steel acid waste water have that wastewater flow rate is big, pollutant load is many, harm is big, the pollutent composition is complicated and change characteristics such as big.This type of acid waste water generally reaches wastewater discharge standard through neutralization reaction pond, coagulation basin, settling tank, strainer etc.This legacy system is regulated waste water ph by directly add alkali (sodium hydroxide or milk of lime) in the neutralization reaction pond, molysite, fluorochemical and sulfate radical etc. in the precipitation waste water.Because the reagent consumption amount of conventional processing system is very big, a large amount of mud of generation are intractable also, has increased cost for wastewater treatment greatly.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of acidic industrial effluent treatment system that can reduce sludge quantity and can improve the wastewater treatment rate at above-mentioned prior art.
The utility model is to solve the problems of the technologies described above the technical scheme that adopts to be: the acidic industrial effluent treatment system, it comprises the waste water transport pipe, wastewater equalization pond, the neutralization reaction pond, settling tank, it is characterized in that: it also comprises pretreatment pool, described waste water transport pipe is connected with pretreatment pool, in pretreatment pool, be provided with first aerating apparatus, the delivery port of pretreatment pool links to each other with the input aperture of wastewater equalization pond, in wastewater equalization pond, be provided with second aerating apparatus, the delivery port of wastewater equalization pond is connected with the input aperture in neutralization reaction pond, in the neutralization reaction pond, be provided with stirrer, the delivery port in neutralization reaction pond is connected with the input aperture of settling tank, is provided with mud discharging mouth and water outlet in settling tank.
By technique scheme, described neutralization reaction pond is divided into one-level neutralization reaction pond and secondary neutralization reaction pond, is equipped with stirrer in two reaction tanks.
By technique scheme, in settling tank, be provided with mud scraper.
By technique scheme, the water outlet of settling tank is connected with strainer.
The obtained beneficial effect of the utility model is: the utility model is by arranging pretreatment pool and aerating apparatus, in pretreatment pool, add calcium carbonate granule, remove the free acid in the waste water, precipitate partially fluorinated thing, remove the part large granular impurity, improve waste water ph, thereby reach the purpose that reduces subsequent treatment process alkaline agent dosage and reduce sludge quantity, improved wastewater treatment rate and the processing cost that has reduced waste water.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure: 1, waste water transport pipe, 2, pretreatment pool, 3, first aerating apparatus, 4, wastewater equalization pond, 5, second aerating apparatus, 6, one-level neutralization reaction pond, 7, first stirrer, 8, secondary neutralization reaction pond, 9, second stirrer, 10, settling tank, 11, mud scraper, 12, strainer.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the acidic industrial effluent treatment system, it comprises waste water transport pipe 1, pretreatment pool 2, wastewater equalization pond 4, one-level neutralization reaction pond 6, first stirrer 7, secondary neutralization reaction pond 8, second stirrer 9, settling tank 10, waste water transport pipe 1 is connected with pretreatment pool 2, in pretreatment pool 2, be provided with first aerating apparatus 3, the delivery port of pretreatment pool 2 links to each other with the input aperture of wastewater equalization pond 4, in wastewater equalization pond 4, be provided with second aerating apparatus 5, the delivery port of wastewater equalization pond 4 is connected with the input aperture in one-level neutralization reaction pond 6, in one-level neutralization reaction pond 6, be provided with first stirrer 7, the delivery port in one-level neutralization reaction pond 6 is connected with the input aperture in secondary neutralization reaction pond 8, in secondary neutralization reaction pond 8, be provided with second stirrer 9, the delivery port in secondary neutralization reaction pond 8 is connected with the input aperture of settling tank 10, is provided with mud discharging mouth and water outlet in settling tank.
For the throw out in the settling tank is discharged from the mud discharging mouth more completely, in settling tank 10, be provided with mud scraper 11.
The water outlet of settling tank 10 is connected with strainer 12, further improves the processing rate of waste water.
Working process of the present utility model is: earlier waste water is sent to pretreatment pool 2 by waste water transport pipe 1, start first aerating apparatus 3 when in pretreatment pool 2, adding calcium carbonate granule, by aeration agitation waste water and calcium carbonate granule are fully reacted, reaction can generate Calcium Fluoride (Fluorspan), because the solubility product of Calcium Fluoride (Fluorspan) is much smaller than the solubility product of calcium carbonate, so can precipitate partially fluorinated thing in advance, in addition, calcium carbonate granule can with waste water in free acid reaction generate carbonic acid gas and soluble calcium salt, go out the carbon dioxide that produces in the reaction process by aerating apparatus 3 strippings, can improve waste water ph, thereby reach the purpose that reduces subsequent treatment process alkaline agent dosage and reduce sludge quantity.The minimizing of alkaline agent dosage has further reduced cost for wastewater treatment, and the waste water that comes out from pretreatment pool 2 passes through one-level neutralization reaction pond 6, secondary neutralization reaction pond 8, settling tank 10, strainer 12 again.Wherein, the size of pretreatment pool arranged according to the reaction times of calcium carbonate and the stripping time of carbonic acid gas.
The utility model is mainly for the treatment of cold-rolling stainless steel, silicon steel acid waste water.
Claims (4)
1. acidic industrial effluent treatment system, it comprises the waste water transport pipe, wastewater equalization pond, the neutralization reaction pond, settling tank, it is characterized in that: it also comprises pretreatment pool, described waste water transport pipe is connected with pretreatment pool, in pretreatment pool, be provided with first aerating apparatus, the delivery port of pretreatment pool links to each other with the input aperture of wastewater equalization pond, in wastewater equalization pond, be provided with second aerating apparatus, the delivery port of wastewater equalization pond is connected with the input aperture in neutralization reaction pond, in the neutralization reaction pond, be provided with stirrer, the delivery port in neutralization reaction pond is connected with the input aperture of settling tank, is provided with mud discharging mouth and water outlet in settling tank.
2. acidic industrial effluent treatment system according to claim 1, it is characterized in that: described neutralization reaction pond is divided into one-level neutralization reaction pond and secondary neutralization reaction pond, is equipped with stirrer in two neutralization reaction ponds.
3. acidic industrial effluent treatment system according to claim 1 and 2 is characterized in that: be provided with mud scraper in settling tank.
4. acidic industrial effluent treatment system according to claim 3, it is characterized in that: the water outlet of settling tank is connected with strainer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320051169 CN203128332U (en) | 2013-01-30 | 2013-01-30 | Acidic industrial wastewater treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320051169 CN203128332U (en) | 2013-01-30 | 2013-01-30 | Acidic industrial wastewater treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203128332U true CN203128332U (en) | 2013-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320051169 Expired - Lifetime CN203128332U (en) | 2013-01-30 | 2013-01-30 | Acidic industrial wastewater treatment system |
Country Status (1)
| Country | Link |
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| CN (1) | CN203128332U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310690A (en) * | 2014-10-28 | 2015-01-28 | 中冶南方工程技术有限公司 | Process of regenerating metal nitric acid and hydrofluoric acid pickling wastewater and recycling metal elements |
| CN108689521A (en) * | 2018-05-23 | 2018-10-23 | 芜湖慧宇商贸有限公司 | A kind of cleaning device suitable for acidic industrial effluent |
| CN109956582A (en) * | 2017-12-25 | 2019-07-02 | 安徽洁之源环保科技有限公司 | Hydrochloric acid acidleach quartz sand sewage treatment process |
-
2013
- 2013-01-30 CN CN 201320051169 patent/CN203128332U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310690A (en) * | 2014-10-28 | 2015-01-28 | 中冶南方工程技术有限公司 | Process of regenerating metal nitric acid and hydrofluoric acid pickling wastewater and recycling metal elements |
| CN104310690B (en) * | 2014-10-28 | 2016-01-20 | 中冶南方工程技术有限公司 | Metal nitrate, the regeneration of hydrofluoric acid spent pickle liquor and the recovery process of metallic element |
| CN109956582A (en) * | 2017-12-25 | 2019-07-02 | 安徽洁之源环保科技有限公司 | Hydrochloric acid acidleach quartz sand sewage treatment process |
| CN108689521A (en) * | 2018-05-23 | 2018-10-23 | 芜湖慧宇商贸有限公司 | A kind of cleaning device suitable for acidic industrial effluent |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |