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Organic pigment wastewater treatment technology

A technology for organic pigments and wastewater treatment, which is applied in textile industry wastewater treatment, multi-stage water treatment, water/sewage treatment, etc. It can solve the problems of substandard discharge, high treatment cost, unstable effluent quality, etc., and achieve the cost of wastewater treatment Low temperature, stable effluent quality, and wide range of temperature applications

Inactive Publication Date: 2019-01-04
上海川臣环保技术有限公司
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an organic pigment wastewater treatment process, which can solve the problems of high organic pigment wastewater treatment cost, unstable effluent quality, and substandard discharge in the prior art

Method used

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  • Organic pigment wastewater treatment technology
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Embodiment Construction

[0021] Combine below figure 1 The embodiments of the present invention are further described in detail.

[0022] The discharge of organic pigment wastewater from an organic pigment production company is 200 cubic meters per hour, the COD of wastewater is 11,000 mg / liter, the TSS is 2000 mg / liter, the chromaticity is greater than 100 times, the water temperature is normal temperature, and the pH of wastewater is 5-6.

[0023] Step 1, the organic pigment wastewater is collected into the grit chamber 1 through the workshop, the sludge at the bottom of the grit chamber 1 is sent to the sludge recovery system 10, and the supernatant flows into the first coagulation reaction system;

[0024] Step 2. The first coagulation reaction system includes the first coagulation reaction tank 2 and the primary sedimentation tank 3. Add coagulant and flocculant to the wastewater in the first coagulation reaction tank 2. The coagulant is chlorinated Iron, polyacrylamide is used as the flocculant...

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Abstract

The invention provides an organic pigment wastewater treatment technology. The technology comprises the following steps that organic pigment wastewater is collected to a grit chamber through a workshop, and liquid supernatant flows into a first coagulating-reaction system; a coagulant and a flocculant are added into the wastewater in the first coagulating-reaction system, and liquid supernatant flows into an aerobic treatment system; liquid supernatant generated at the bottom of the aerobic treatment system flows into a second coagulating-reaction system; a coagulant and a flocculant are addedinto wastewater in the second coagulating-reaction system, and liquid supernatant flows into a Fenton reaction pond; a Fenton reagent is added into a Fenton reaction system, after the reaction is finished, a flocculant is added into the wastewater, and liquid supernatant is discharged after reaching the standard. According to the organic pigment wastewater treatment technology, the technical routes of a physicochemical pretreatment technology, a biological-method main treatment technology and a Fenton advanced oxidation deep treatment technology are adopted, most COD and chroma in the wastewater can be removed, the quality of the discharged water is stable, the temperature application range is wide, the treatment cost is low, and it is ensured that the quality of the treated discharged water reaches the primary standard of the integrated wastewater discharge standard.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an organic pigment wastewater treatment process. Background technique [0002] The water quality of organic pigment wastewater has the characteristics of high suspended solids, high COD, high chroma, and difficult biodegradation of organic matter. At the same time, there are problems such as intermittent discharge, normal temperature and seasonal changes, and large changes in water quality and quantity over time. It belongs to the refractory industry. waste water. At present, the treatment methods of organic pigment wastewater are mainly divided into biochemical method and physicochemical method. The biochemical method mainly includes activated sludge method, biological contact oxidation method, SBR, UASB, composite biological filter, etc.; , Activated carbon adsorption, ion exchange, solvent extraction, membrane separation, electrodialysis, etc. Most domestic pigmen...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F101/30C02F103/30
CPCC02F1/56C02F1/722C02F9/00C02F2001/007C02F2101/30C02F2103/30C02F2201/007C02F2301/08C02F2305/026
Inventor 桂龙勇
Owner 上海川臣环保技术有限公司
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