Electroplating wastewater treatment system and method
A treatment system, electroplating wastewater technology, applied in the direction of metallurgical wastewater treatment, water/sewage treatment, water treatment parameter control, etc., can solve the problems of inability to realize resource utilization, high cost of wastewater treatment, incomplete treatment, etc., to reduce sludge Outgoing expenditure, reduction of sludge discharge, and stable operation
Active Publication Date: 2019-03-22
SHANGHAI JIANGZHE ENVIRONMENT ENG TECH CO LTD
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Problems solved by technology
[0005] In order to solve the problems of high cost, incomplete treatment and inability to realize recycling of wastewater before electroplating in the prior art, the purpose of the present invention is to provide an electroplating wastewater treatment system and a treatment method using the system
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[0046] Such as figure 2 , an electroplating wastewater treatment system comprising a collection tank 1, an electrocoagulation treatment unit 2, a Fenton fluidized bed 3, a regulating tank 5, an MBR treatment unit 6, an intermediate tank 7, a microfiltration membrane treatment unit 4, and a nanofiltration membrane treatment unit 22. Reverse osmosis treatment unit 9, membrane distillation treatment unit 10, and MVR treatment unit 11.
[0047] The pollutants in the collection pool 1 are mainly heavy metal ions, non-metal ions, suspended matter and organic matter.
[0048] The water outlet of the collection tank 1 is connected to the water inlet of the electrocoagulation treatment unit 2, and the electrocoagulation treatment unit 2 is used to settle the suspended solids and heavy metals in the collection tank 1;
[0049] Such as image 3 , the electrocoagulation treatment unit 2 includes a reaction tank 8, a water inlet is provided at the bottom of one side of the reaction tank 8...
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Abstract
The invention discloses an electroplating wastewater treatment system. The electroplating wastewater treatment system comprises a collection tank, an electric flocculation treatment unit, a Fenton fluidized bed, an adjusting tank, an MBR (Membrane Bio-Reactor) treatment unit, a middle tank, a micro-filtration membrane treatment unit, a nano-filtration membrane treatment unit, a reverse-osmosis treatment unit, a membrane distillation treatment unit and an MVR (Mechanical Vapor Recompression) treatment unit. 1) In the electroplating wastewater treatment system, the electric flocculation treatment unit is adopted instead of the traditional medicament flocculation or primary sedimentation tank, so that the agent dosage and sludge discharge are reduced, the sludge transportation cost is lowered, the production cost is lowered, and meanwhile the production efficiency is improved; (2) NaCl crystalloid salt is obtained in the electroplating wastewater treatment system with purity being up to the industrial salt standard, and is recyclable; 3) the electroplating wastewater treatment system has the advantages of stable running, low failure rate, and less membrane replacing times.
Description
technical field [0001] The invention relates to the technical field of electroplating wastewater treatment, in particular to an electroplating wastewater treatment system and a treatment method using the system. Background technique [0002] Electroplating wastewater is a kind of industrial wastewater with complex composition and high toxicity. It is one of the main pollution sources of heavy metal pollution. The organic pollution problem in electroplating wastewater is also serious. There are three main sources of organic pollution in electroplating wastewater: pre-plating treatment process, electroplating process, and post-plating treatment process. The wastewater generated before the electroplating treatment is the wastewater generated after the electroplating parts are cleaned in the cleaning tank. [0003] The CODcr in the wastewater produced before electroplating treatment has a lot to do with the product type and process route of the electroplating enterprise. The w...
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IPC IPC(8): C02F9/14C01D3/04C02F103/16C02F101/20C02F101/30
CPCC01D3/04C02F9/00C02F2209/05C02F2209/08C02F2209/10C02F2101/20C02F2101/30C02F2103/16C02F2305/026C02F1/041C02F3/1268C02F5/02C02F1/463C02F1/442C02F1/441C02F1/444C02F1/447C02F1/72C02F1/66
Inventor 王开江
Owner SHANGHAI JIANGZHE ENVIRONMENT ENG TECH CO LTD