Copper smelting water treatment recovery device and zero discharge method
A recycling device, copper smelting technology, applied in metallurgical wastewater treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve problems such as environmental pollution
Active Publication Date: 2018-07-24
安徽森诺膜技术有限公司
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Problems solved by technology
[0002] A large amount of reclaimed water will be produced in the process of copper smelting, and the copper mine acid wastewater treatment system will also produce some reverse osmosis concentrated water with high salt content. The water quality has high calcium, magnesium, sodium, chlorine, nitrate, and sulfate , bicarbonate plasma, higher total dissolved solids, a small amount of heavy metal ions, and some suspended solids and organic pollutants. The water is currently using traditional purification and concentration processes. Although part of the reclaimed water can be recovered, the concentrated water that can be discharged will be recycled. pollute the environment
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[0039] The water treatment system supporting the industrial upgrading and transformation of a copper industry limited company.
[0040] 1. introduction
[0041] The supporting water treatment system includes water reuse system, desalinated water system and concentrated brine zero discharge system.
[0042] The design water intake of the reuse water system is the drainage of the circulating water system, and the water intake is 4416m 3 / d, which is 184m 3 / h. Adopt the process of mechanical stirring clarifier (including lime, soda ash softening) + multi-media filter + self-cleaning filter + ultrafiltration + first-stage reverse osmosis + concentrated water reverse osmosis, concentrated water collected by concentrated water reverse osmosis device enters concentrated brine Zero discharge system treatment.
[0043] The desalinated water system uses the water produced by the reuse water system as the water source, which is used by the owner's waste heat power generation boiler...
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Abstract
The present invention is a water treatment recovery device in copper smelting and a zero discharge method. The structure of the recovery device includes a pretreatment softening system (1), a primary desalination treatment system (2), a secondary desalination treatment system (3), concentrated brine zero Discharge treatment system (4); zero discharge method for water treatment and recovery in copper smelting, including the following steps: (1) pretreatment softening; (2) primary desalination treatment; (3) secondary desalination treatment; (4) concentration Saltwater zero discharge treatment. The advantages of the present invention: ①Use lime and soda ash to remove the hardness of reclaimed water; ②Use one-stage reverse osmosis to desalinate initially, and the effluent water is replenished to circulating water; ③Use two-stage reverse osmosis and electrodeionization to further desalinate to achieve desalinated water Requirements; ④ Use special reverse osmosis to concentrate, reduce and evaporate; ⑤ Ultimately achieve the purpose of recycling water resources, eliminating pollution and zero discharge.
Description
technical field [0001] The invention relates to a water treatment recovery device and a zero discharge method in copper smelting, and belongs to the technical field of industrial waste water treatment. Background technique [0002] A large amount of reclaimed water will be produced in the process of copper smelting, and the copper mine acid wastewater treatment system will also produce some reverse osmosis concentrated water with high salt content. The water quality has high calcium, magnesium, sodium, chlorine, nitrate, and sulfate , bicarbonate plasma, higher total dissolved solids, a small amount of heavy metal ions, and some suspended solids and organic pollutants. The water is currently using traditional purification and concentration processes. Although part of the reclaimed water can be recovered, the concentrated water that can be discharged will be recycled. pollute the environment. New copper smelting water treatment and reuse and zero discharge technologies are n...
Claims
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IPC IPC(8): C02F9/06C02F103/16
CPCY02A20/131
Inventor 张国平姜新春
Owner 安徽森诺膜技术有限公司