CN202246306U - Treatment system for chromate waste water - Google Patents
Treatment system for chromate waste water Download PDFInfo
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- CN202246306U CN202246306U CN2011203806346U CN201120380634U CN202246306U CN 202246306 U CN202246306 U CN 202246306U CN 2011203806346 U CN2011203806346 U CN 2011203806346U CN 201120380634 U CN201120380634 U CN 201120380634U CN 202246306 U CN202246306 U CN 202246306U
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Abstract
The utility model discloses a treatment system for chromate waste water. The treatment system comprises a regulating reservoir for balancing water quality and water amount of the waste water, wherein an output end of the regulating reservoir is connected with a first lifting pump; an output end of the first lifting pump is communicated with a treatment reservoir; an output end of the treatment reservoir is connected with a second lifting pump; an output end of the second lifting pump is communicated with a sedimentation reservoir; a first output port of the sedimentation reservoir is communicated with a clean water reservoir; and a second output port of the sedimentation reservoir is communicated with a sludge concentration tank through a third lifting pump. The treatment system provided by the utility model has the advantage of simple structure.
Description
Technical field
The utility model relates to the technology for treating industrial waste water field, is specifically related to a kind of treatment system of chromate waste water.
Background technology
Total chromium (TCr) and sexavalent chrome (Cr
6+) be to belong to a pollutant matter, state control is strict, and total the highest permission emission concentration of chromium (TCr) is 1.5mg/L, sexavalent chrome (Cr
6+) the highest permission emission concentration is 0.5mg/L.It is more that electroplating industry closes chrome waste water, and how simply and effectively the purifying treatment chromate waste water is the key subjects during a heavy metal ion is handled.As far back as the beginning of the seventies, timber mill, the north suburb had the ion exchange method processing to contain lattice waste water, but investment is very big, and technological process is comparatively complicated, and decontamination effect improving is not satisfactory.
Summary of the invention
To above-mentioned technical problem, the purpose of the utility model provides a kind of treatment system of chromate waste water simple in structure.
The technical scheme that realizes the utility model purpose is following:
The treatment system of chromate waste water; Comprise waste water is carried out water quality and water yield isostatic equalizing tank, the output terminal of this equalizing tank connects first lift pump, and first promotes delivery side of pump is communicated with treating pond; The output terminal of treating pond connects second lift pump; This second lifting delivery side of pump is communicated with settling tank, and first output port of settling tank is communicated with clean water basin, and second output port of settling tank is communicated with sludge thickener through the 3rd lift pump.
The output terminal of said sludge thickener connects a pressure filter through surge pump.
The filtrate outlet of said pressure filter is communicated with equalizing tank.
Adopted such scheme, its processing mode to waste water of the utility model is also fairly simple, promptly handles sexavalent chrome at first under acidic conditions; Using the ferrous sulfate reductive agent again, is trivalent chromium with hexavalent chrome reduction, then; Change chromic existence form; Be hydro-oxidation sodium neutralization, make trivalent chromium become Cr (OH) deposition, trivalent chromium is removed got final product.The utility model is made up of several simple parts, so the structure of total system is comparatively simple.
Description of drawings
Fig. 1 is the structural representation of the treatment system of chromate waste water in the utility model;
10 is equalizing tank, and 20 is first lift pump, and 30 is treating pond, and 40 is second lift pump, and 50 is settling tank, and 60 is clean water basin, and 70 is sludge thickener, and 80 is surge pump, and 90 is pressure filter.
Embodiment
With reference to Fig. 1; The treatment system of the chromate waste water of the utility model; Comprise waste water is carried out water quality and water yield isostatic equalizing tank 10, equalizing tank 10 is after to be waste water through the lattice coral remove the macrobead suspended substance, is transported in the equalizing tank that deposition for some time is carried out water quality and the water yield is balanced.The output terminal of equalizing tank 10 connects first lift pump 20; The output terminal of first lift pump 20 is communicated with treating pond 30; In treating pond, add sulfuric acid adjustment pH value between 2.5-3.2, add ferrous sulfate then and stirred 10-20 minute; The pH value of adjustment serves as preferred with 3, and churning time served as preferred with 15 minutes.After stirring completion, add sodium hydroxide and neutralize, stir and also adjust the pH value between 7-8, this pH value serves as preferred with 7.5.The output terminal of treating pond 30 connects second lift pump 40; The output terminal of this second lift pump 40 is communicated with settling tank 50; First output port of settling tank is communicated with clean water basin 60; Upper strata clear water in settling tank overflows in the clean water basin, and second output port of settling tank 50 is communicated with sludge thickener 70 through the 3rd lift pump, and sediment then is transported to sludge thickener.The output terminal of sludge thickener 70 connects a pressure filter 90 through surge pump 80; The filtrate outlet of said pressure filter is communicated with equalizing tank; The sediment that is transported to sludge thickener is after placing, and the clear water that is exuded to the upper strata flows back to clean water basin, and sediment is with pressure filter 90 press filtrations; Filtrate flow returns equalizing tank 10, and filter residue is transported to the offal treatment place.
Claims (3)
1. the treatment system of chromate waste water; It is characterized in that: comprise waste water is carried out water quality and water yield isostatic equalizing tank, the output terminal of this equalizing tank connects first lift pump, and first promotes delivery side of pump is communicated with treating pond; The output terminal of treating pond connects second lift pump; This second lifting delivery side of pump is communicated with settling tank, and first output port of settling tank is communicated with clean water basin, and second output port of settling tank is communicated with sludge thickener through the 3rd lift pump.
2. the treatment system of chromate waste water according to claim 1 is characterized in that: the output terminal of said sludge thickener connects a pressure filter through surge pump.
3. the treatment system of chromate waste water according to claim 2, it is characterized in that: the filtrate outlet of said pressure filter is communicated with equalizing tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203806346U CN202246306U (en) | 2011-09-29 | 2011-09-29 | Treatment system for chromate waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203806346U CN202246306U (en) | 2011-09-29 | 2011-09-29 | Treatment system for chromate waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202246306U true CN202246306U (en) | 2012-05-30 |
Family
ID=46107578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203806346U Expired - Fee Related CN202246306U (en) | 2011-09-29 | 2011-09-29 | Treatment system for chromate waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202246306U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104129869A (en) * | 2014-07-08 | 2014-11-05 | 泰州明锋资源再生科技有限公司 | Stainless steel pickling wastewater treatment method |
| CN105236639A (en) * | 2015-10-30 | 2016-01-13 | 太仓东能环保设备有限公司 | Chromium-containing wastewater treatment process |
-
2011
- 2011-09-29 CN CN2011203806346U patent/CN202246306U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104129869A (en) * | 2014-07-08 | 2014-11-05 | 泰州明锋资源再生科技有限公司 | Stainless steel pickling wastewater treatment method |
| CN105236639A (en) * | 2015-10-30 | 2016-01-13 | 太仓东能环保设备有限公司 | Chromium-containing wastewater treatment process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20120929 |