CN104628182A - Wastewater treatment system for realizing zero emission of graphite production wastewater - Google Patents
Wastewater treatment system for realizing zero emission of graphite production wastewater Download PDFInfo
- Publication number
- CN104628182A CN104628182A CN201410785866.8A CN201410785866A CN104628182A CN 104628182 A CN104628182 A CN 104628182A CN 201410785866 A CN201410785866 A CN 201410785866A CN 104628182 A CN104628182 A CN 104628182A
- Authority
- CN
- China
- Prior art keywords
- unit
- production wastewater
- wastewater treatment
- wastewater
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a wastewater treatment system for realizing zero emission of graphite production wastewater, and belongs to the field of graphite production wastewater treatment. The system is used for carrying out the following steps: automatically precipitating raw water of the production wastewater via a 'precipitation' unit, introducing the production wastewater into a 'neutralization and flocculation' unit to neutralize the pH to 6-8, adding a flocculant, stewing for 30-45 minutes, press filtering via a 'press filtering' unit to remove suspended solids and insoluble solids with larger sizes, removing macromolecular substance contributing to a CODCr value via a 'microfiltration' unit and an 'ultrafiltration' unit, and finally treating the water via an 'efficient desalination' unit with an operation pressure of 40-45 kg/cm<2>, and the discharged water reaches the first class water quality or a higher standard and is repeatedly used in production procedures.
Description
Technical field
Belong to graphite production wastewater treatment field.
Background technology
The feature of graphite factory effluent is strongly-acid, and total suspended matter, soluble solid content and chemical oxygen demand are high.At present conventional treatment process adds alkali neutralization, then add flocculation agent flocculation, and postprecipitation is separated, then add chemical substance and remove COD
cr.Although the contamination index in waste water greatly can be reduced like this, from the environmental requirement not reaching increasingly stringent, let alone the zero release of water.The risk that many graphite manufacturing enterprises face closure because wastewater treatment is not up to standard.
Summary of the invention
The present invention discloses a Waste Water Treatment making graphite factory effluent realize zero release, belong to graphite production wastewater treatment field, its flow process is: the former water of factory effluent, after " precipitation " unit autoprecipitation, imports " neutralization, flocculation " unit, in and pH=6-8,30-45 minute is left standstill after adding flocculation agent, then import the press filtration of " press filtration " unit, remove the suspended substance of large-size, isolated solid substance does harmless process, and water outlet is through " " Microfiltration Unit, ultra filtration unit, removes and affect COD
crthe macromolecular substance of index is 40-45kg/ cm finally by internal operation pressure
2" efficient desalination " cell processing, water outlet reaches one-level water quality even higher standard, return production process use, realize zero release.This Waste Water Treatment can realize automatic control, simple to operate, and running cost is low.
Accompanying drawing explanation
Fig. 1 is component units and the schema of " Waste Water Treatment making graphite factory effluent realize zero release ".
Claims (4)
1. a Waste Water Treatment making graphite factory effluent realize zero release, it is characterized in that, precipitation unit, neutralization, flocculation unit, press filtration unit, Microfiltration Unit, ultra filtration unit and efficient desalination unit combinationally use, reach one-level water quality standard after making graphite production wastewater treatment, return production process and reuse.
2. neutralization according to claim 1, flocculation unit, is characterized in that, regulates pH=6-8, leaves standstill 30-45 minute after adding flocculation agent.
3. efficient desalination unit according to claim 1, is characterized in that, operating pressure is 40-45 kg/ cm
2.
4. the dense water that ultra filtration unit according to claim 1 and efficient desalination unit are produced is incorporated to the water outlet reprocessing of autoprecipitation unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410785866.8A CN104628182A (en) | 2014-12-18 | 2014-12-18 | Wastewater treatment system for realizing zero emission of graphite production wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410785866.8A CN104628182A (en) | 2014-12-18 | 2014-12-18 | Wastewater treatment system for realizing zero emission of graphite production wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104628182A true CN104628182A (en) | 2015-05-20 |
Family
ID=53207490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410785866.8A Pending CN104628182A (en) | 2014-12-18 | 2014-12-18 | Wastewater treatment system for realizing zero emission of graphite production wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104628182A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107522358A (en) * | 2017-09-06 | 2017-12-29 | 河南易成新能源股份有限公司 | Cell negative electrode material graphite production wastewater treatment method |
| CN113045093A (en) * | 2021-03-19 | 2021-06-29 | 黔南民族师范学院 | Treatment method of graphite product production wastewater |
-
2014
- 2014-12-18 CN CN201410785866.8A patent/CN104628182A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107522358A (en) * | 2017-09-06 | 2017-12-29 | 河南易成新能源股份有限公司 | Cell negative electrode material graphite production wastewater treatment method |
| CN113045093A (en) * | 2021-03-19 | 2021-06-29 | 黔南民族师范学院 | Treatment method of graphite product production wastewater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150520 |
|
| WD01 | Invention patent application deemed withdrawn after publication |