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Electroplating wastewater pretreatment integrated equipment

A technology for electroplating wastewater and pretreatment, applied in water/sewage treatment equipment, metallurgical wastewater treatment, multi-stage water treatment, etc., can solve the problems of high investment cost, large floor space, inconvenient maintenance, etc. Small footprint and easy maintenance

Pending Publication Date: 2021-06-29
深圳市国寰环保科技发展有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art, provide an electroplating wastewater pretreatment integrated equipment, and solve the problems in the prior art that the electroplating wastewater treatment equipment has complex structure, large floor area, high investment cost, and inconvenient maintenance

Method used

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  • Electroplating wastewater pretreatment integrated equipment
  • Electroplating wastewater pretreatment integrated equipment
  • Electroplating wastewater pretreatment integrated equipment

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Embodiment Construction

[0025] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] Please refer to Figure 1-Figure 7 , the present invention provides an integrated equipment for pretreatment of electroplating wastewater, comprising: a coagulation reaction tank 1, a coagulation flocculation tank 2, and a sedimentation tank 3 arranged in series in sequence; Cyanide breaking tank 4, secondary cyanide breaking tank 5; said coagulation reaction tank 1, coagulation flocculation tank 2, primary cyanide breaking tank 4, and secondary cyanide breaking tank 5 are provided with dosing point 7, said The dosing point 7 is used to add lye (such as sodium hydroxide) and polyaluminium chloride to the coagulation reaction tank 1 by cooperating with the external dosing pump and the dosing pipeline, Add polyacrylamide, add lye (such as sodium hydroxide) and sodium hypochlorite to the primary cyanide breaking tank 4, add acid solution...

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Abstract

The invention discloses electroplating wastewater pretreatment integrated equipment which comprises a coagulation reaction tank, a coagulation flocculation tank, a sedimentation tank, a primary cyanide breaking tank and a secondary cyanide breaking tank, wherein the coagulation reaction tank, the coagulation flocculation tank and the sedimentation tank are sequentially connected in series; the primary cyanide breaking tank and the secondary cyanide breaking tank are arranged on one side of the coagulation reaction tank; the coagulation reaction tank, the coagulation flocculation tank, the primary cyanide breaking tank and the secondary cyanide breaking tank are all provided with dosing points for adding reactants; and the coagulation reaction tank is communicated with the coagulation flocculation tank through a first lift pump, the coagulation flocculation tank is communicated with the sedimentation tank through a hole, and the primary cyanide breaking tank is communicated with the secondary cyanide breaking tank through a second lift pump. The whole structure is compact, the occupied area is small, the investment cost can be effectively reduced, and equipment maintenance is convenient.

Description

technical field [0001] The invention relates to the field of wastewater treatment equipment, in particular to an integrated equipment for electroplating wastewater pretreatment. Background technique [0002] Electroplating wastewater has complex components, high toxicity, and a wide range of sources. If it is not handled properly, it will pollute and harm the environment. Electroplating wastewater can be roughly divided into: electroplating pretreatment wastewater, plating rinsing wastewater, post-treatment wastewater; electroplating pretreatment wastewater mainly comes from acid derusting and chemical degreasing, this type of wastewater belongs to oily wastewater, while plating rinsing wastewater, post-treatment wastewater It belongs to wastewater containing heavy metal ions. [0003] Due to the complex water quality of electroplating wastewater and the different types of electroplating, the discharge of each electroplating wastewater varies greatly, and it cannot be treat...

Claims

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Application Information

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IPC IPC(8): C02F9/04C02F103/16
CPCC02F1/5281C02F1/58C02F9/00C02F2001/007C02F2103/16C02F2201/002C02F2301/08
Inventor 李亚静吴昆泽沈文钢孔国勤沈斯涛
Owner 深圳市国寰环保科技发展有限公司
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