CN106698597A - Method of fast advanced treatment of dye wastewater - Google Patents
Method of fast advanced treatment of dye wastewater Download PDFInfo
- Publication number
- CN106698597A CN106698597A CN201611199409.6A CN201611199409A CN106698597A CN 106698597 A CN106698597 A CN 106698597A CN 201611199409 A CN201611199409 A CN 201611199409A CN 106698597 A CN106698597 A CN 106698597A
- Authority
- CN
- China
- Prior art keywords
- dyestuff
- waste water
- intermediate pool
- electro
- dye wastewater
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention relates to a method of fast advanced treatment of dye wastewater. Organic matters are degraded in an electrocatalytic oxidation technology mainly through direct oxidation and indirect oxidation, the removing speed is fast and the efficiency is high, and the technology has a good removing effect to the dye wastewater. According to the technical scheme, the method specifically comprises the steps that 1, the dye wastewater enters an intermediate water pool after being treated by a secondary sewage plant, and the intermediate water pool plays a role in water volume buffering adjustment and intermediate storage; 2, the intermediate water pool sewage enters an electro-catalysis oxidative system after being lifted by a lift pump, an electro-catalysis oxidative reaction groove body is divided into multiple reaction grooves, the reaction grooves are communicated and connected in series, positive and negative electrodes are arranged in each reaction groove, wherein the positive electrode adopts a PbO2 polar plate, the negative electrode adopts a stainless steel polar plate, and the interval between the polar plates is 5-15 cm, the bottom of a reactor is provided with an aeration perforated tube, which controls aeration intensity through compressing air volume, a direct current stabilized power supply is adopted on a power supply, the voltage output range is 0-36 V, and the current output range is 0-30 A; 3, the chosen process operating parameters are that the PH value is 4.0-7.5, the current density is 5-15 mA/cm<2>, and the hydraulic retention time is 1-5 h. The electro-catalysis yielding water satisfies the first standard of emissions standards for major pollutants in the chemical industry, and satisfies standardized discharge.
Description
Technical field
The present invention relates to a kind of method of water-treatment technology field, specifically a kind of electrocatalytic oxidation PROCESS FOR TREATMENT dyestuff
Method, electrocatalytic oxidation technique is mainly by direct oxidation and indirect oxidation degradation of organic substances, and removal rate is fast and efficiency high, right
There is preferable removal effect in waste water from dyestuff.
Background technology
Dye industry as China traditional industries, the waste water that it is produced is with organic concentration is high, complicated component, color
The features such as degree is high, hard-degraded substance is more, becomes a great problem of water treatment field.With industrial wastewater discharge standard increasingly
Improve, enterprise needs to improve original handling process or carry out bio-chemical effluent advanced treating to propose mark transformation.
The further treatment technique of application waste water from dyestuff mainly has physical-chemical process, oxidizing process, electrochemical process etc. at present.Wherein
Electrocatalytic Oxidation in electrochemical process with its equipment it is simple, reaction speed is fast, non-secondary pollution, can make recalcitrant substance
Be converted into bio-degradable material or by organic matter deep oxidation be CO2And H2O.Electrocatalytic oxidation technique is mainly by direct
Oxidation and indirect oxidation degradation of organic substances, wherein indirect oxidation refer to by producing the intermediate product with strong oxidizing property (such as
OH, HClO or O3Deng) cause organic matter degradation.
The content of the invention
It is an object of the invention to a kind of method of electrocatalytic oxidation PROCESS FOR TREATMENT waste water from dyestuff, while removing COD and taking off
Color, can be used for the pretreatment of waste water from dyestuff and advanced treating, be obtained in that qualified effluent quality.The present invention is by following skill
What art scheme was realized, specifically include following steps：
(1) intermediate pool is entered after waste water from dyestuff is managed through B-grade sewage factory and office, intermediate pool plays water buffering regulation with
Between store effect.
(2) the boosted pump of intermediate pool sewage is lifted into electrocatalytic oxidation system, and electrocatalysis oxidation reaction cell body is divided
It is several reactive tanks, series connection is communicated, there is each 1 of positive and negative electrode in each reactive tank, wherein positive pole uses PbO2Pole plate, negative pole
Using stainless steel polar plate, pole plate spacing is 5~15cm.Reactor bottom sets aeration perforated pipe, by air supply control
Aeration intensity, power supply uses D.C. regulated power supply, and voltage output range is 0~36V, and range of current output is 0~30A.
(3) selection Process operating parameters are：PH value 4.0~7.5,5~15mA/cm of current density2, hydraulic detention time 1
~5h.Electro-catalysis water outlet meets《Chemical industry discharge of major pollutant standard》Primary standard, meets qualified discharge.
Specific embodiment
Embodiments of the invention are elaborated below：The present embodiment is carried out under premised on technical solution of the present invention
Implement, give detailed implementation method, but protection scope of the present invention is not limited to following embodiments.
Embodiment 1
(1) waste water from dyestuff after being managed through dye wastewater factory and office in second pond to middle hopper (30L) is chosen.Water quality is specific
Parameter COD：189mg/L；BOD5：25mg/L；pH7.2；NH3-N：5.6；Colourity 136.
(2) middle tank sewage is lifted into electrocatalysis oxidation reaction groove through peristaltic pump, size be 40cm × 40cm ×
40cm, dischargeable capacity is 36L.Cell body is divided into 3 reactive tanks, and series connection is communicated, and has each 1 of positive and negative electrode in each reactive tank,
Wherein positive pole uses PbO2Pole plate, negative pole uses stainless steel polar plate, and pole plate is between 20cm × 30cm, pole plate just to effective area
Away from being 8cm.Reactor bottom sets aeration perforated pipe, controls aeration intensity, power supply to use DC voltage-stabilizing by air supply
Power supply, voltage output range is 0~36V, and range of current output is 0~30A.
(3) Process operating parameters：PH value 5.6, current density 8.2mA/cm2, hydraulic detention time 2.5h, electro-catalysis water outlet
Water-quality COD：72mg/L；BOD5：10mg/L；NH3-N：3；Colourity 30.Meet《Chemical industry discharge of major pollutant standard》One-level
Standard, can be with qualified discharge.
Claims (3)
1. a kind of method that fast deep processes waste water from dyestuff, it is characterised in that specifically include following steps：
(1) intermediate pool is entered after waste water from dyestuff is managed through B-grade sewage factory and office, intermediate pool plays the regulation of water buffering and store with middle
The effect deposited.
(2) the boosted pump of intermediate pool sewage is lifted into electrocatalytic oxidation system, if electrocatalysis oxidation reaction cell body is divided into
Dry reactive tank, series connection is communicated, and has each 1 of positive and negative electrode in each reactive tank, and wherein positive pole uses PbO2Pole plate, negative pole is used
Stainless steel polar plate, pole plate spacing is 5~15cm.Reactor bottom sets aeration perforated pipe, controls to be aerated by air supply
Intensity, power supply uses D.C. regulated power supply, and voltage output range is 0~36V, and range of current output is 0~30A.
(3) selection Process operating parameters are：PH value 4.0~7.5,5~15mA/cm of current density2, 1~5h of hydraulic detention time.
Electro-catalysis water outlet meets《Chemical industry discharge of major pollutant standard》Primary standard, meets qualified discharge.Such as claim 1 step
The method that a kind of rapid described fast deep processes waste water from dyestuff, it is characterised in that waste water from dyestuff is through two grades described in step (1)
Enter intermediate pool after Sewage Plant treatment, subsequently into advanced treatment unit system.
2. the method that a kind of fast deep as claimed in claim 1 processes waste water from dyestuff, it is characterised in that institute in step (2)
State the boosted pump of intermediate pool sewage and be lifted into electrocatalytic oxidation system, design of major parts and the voltage electricity of electrolysis reactor
Flow control tool there are certain requirements.
3. the method that a kind of fast deep as claimed in claim 1 processes waste water from dyestuff, it is characterised in that institute in step (3)
The selection Process operating parameters stated will control within the specific limits, to be otherwise extremely difficult to good treatment effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611199409.6A CN106698597A (en) | 2016-12-22 | 2016-12-22 | Method of fast advanced treatment of dye wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611199409.6A CN106698597A (en) | 2016-12-22 | 2016-12-22 | Method of fast advanced treatment of dye wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106698597A true CN106698597A (en) | 2017-05-24 |
Family
ID=58901998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611199409.6A Pending CN106698597A (en) | 2016-12-22 | 2016-12-22 | Method of fast advanced treatment of dye wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106698597A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101704600A (en) * | 2009-11-19 | 2010-05-12 | 同济大学 | Segmented treatment method of high-concentration high-chromaticity dye wastewater |
| CN205328814U (en) * | 2016-01-13 | 2016-06-22 | 江苏瑞达环保科技有限公司 | Handle alkaline dye wastewater's device |
-
2016
- 2016-12-22 CN CN201611199409.6A patent/CN106698597A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101704600A (en) * | 2009-11-19 | 2010-05-12 | 同济大学 | Segmented treatment method of high-concentration high-chromaticity dye wastewater |
| CN205328814U (en) * | 2016-01-13 | 2016-06-22 | 江苏瑞达环保科技有限公司 | Handle alkaline dye wastewater's device |
Non-Patent Citations (1)
| Title |
|---|
| 李永峰 等主编: "《现代环境工程材料》", 31 January 2012 * |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |