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Electroplating wastewater whole membrane method process and device

A technology of electroplating wastewater and full membrane method, which is applied in the fields of metallurgical wastewater treatment, water/sewage treatment, chemical instruments and methods, etc. The process is simple and the effect of improving processing efficiency

Pending Publication Date: 2021-08-17
四川省创飞格环保技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] In order to solve the problems of substandard discharge and waste of resources in the electroplating wastewater treatment and discharge process in the prior art, a full-film electroplating wastewater process and device are provided

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  • Electroplating wastewater whole membrane method process and device
  • Electroplating wastewater whole membrane method process and device
  • Electroplating wastewater whole membrane method process and device

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Embodiment Construction

[0040] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0041] A kind of electroplating wastewater full-film process of the present invention comprises the following steps:

[0042] S1. Perform reduction pretreatment on the chromium-containing wastewater, and pass it into the comprehensive adjustment pool 1;

[0043] S2. Perform cyanide-breaking pretreatment on the cyanide-containing wastewater, and pass it into the comprehensive adjustment pool 1;

[0044] S3, pass other waste water except chromium-containing waste water and cyanide-containing waste water into the primary sedimentation tank 4 for preliminary precipitation, and then pass it into the comprehensive adjustment tan...

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Abstract

The invention discloses an electroplating wastewater whole membrane method process and a device, belongs to the technical field of electroplating wastewater treatment, and solves the problems that in the prior art, an electroplating wastewater treatment and discharge process does not reach the standard in discharge and wastes a lot of resources. The device comprises a comprehensive adjusting tank; an inlet of the comprehensive adjusting tank is communicated with a reduction pretreatment tank, a cyanide breaking pretreatment tank and a primary sedimentation tank which are connected in parallel, an outlet of the comprehensive adjusting tank is communicated with an immersed ultrafiltration system, the immersed ultrafiltration system is connected with a roll-type RO system, the roll-type RO system is connected with a DTRO system, the DTRO system and the roll-type RO system are both connected with a water recovery device, the DTRO system is also connected with an evaporative crystallization system, the evaporative crystallization system is connected with a metal recovery device, and the evaporative crystallization system is communicated with the comprehensive regulating reservoir. According to the invention, zero discharge of wastewater treatment is realized, resources are saved, and the treatment efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to an electroplating wastewater full-membrane process and device. Background technique [0002] Electroplating wastewater is mainly various acid-base waste liquids and organic solutions produced after the surface of the workpiece is degreased, waxed, electroplated, cleaned, etched, oxidized, and passivated. Due to the characteristics of the production process, various types of wastewater are discharged separately from the production workshop. The characteristic pollutants in the wastewater are mainly heavy metals, cyanide, refractory organic matter, ammonia nitrogen, total nitrogen, total phosphorus, strong acid and strong alkali, etc. [0003] The composition of electroplating wastewater is very complex. In addition to cyanide (CN)-containing wastewater and acid-base wastewater, heavy metal wastewater is a potentially harmful category of wastewater in the e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10C02F103/16
CPCC02F9/00C02F2001/007C02F1/70C02F2103/16C02F1/444C02F1/441C02F1/04
Inventor 叶易春周瑞健陈天洪赵德川邱鹏
Owner 四川省创飞格环保技术有限公司
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