Electroplating wastewater treatment idea
A technology of electroplating wastewater treatment at the same time, applied in water/sludge/sewage treatment, electrochemical water/sewage treatment, metallurgical wastewater treatment, etc., can solve problems such as increasing the cost of recycling, difficult to remove ammonia nitrogen, and affecting the biodegradability of wastewater
Pending Publication Date: 2019-01-22
江门市崖门新财富环保工业有限公司
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Problems solved by technology
It not only affects the biodegradability of wastewater, it is difficult to remove ammonia nitrogen, total phosphorus and other substances in the subsequent treatment, but also produces a large amount of sludge in the process of separating heavy metals, which greatly increases the difficulty of wastewater reuse and further increases the cost of reuse , will result in electroplating wastewater treatment can only be discharged directly, and can not be reused, which will cause a great waste of water resources, and does not meet the requirements of sustainable development with the reality of our country's current society that advocates environmental protection and clean production
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[0011] The present invention will be further described below in conjunction with the drawings and specific embodiments.
[0012] An idea of treating electroplating wastewater with sludge and water. The electroplating wastewater that can be separated by membrane will produce a large amount of reused water after membrane separation, which will be reused in the production of electroplating workshop; membrane concentrate and high-concentration waste liquid of the same nature are used as resources Recycling (extraction, electrowinning, evaporative crystallization, etc.), recovering a large amount of intermediate products of heavy metals, and a small amount of waste water containing impurities is further processed in advanced treatment to make it meet the discharge standards. A small amount of solid waste may be generated during the advanced treatment process, and building materials are operated outside Or curing landfill treatment.
[0013] Further, the membrane separation includes th...
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The invention provides an electroplating wastewater treatment idea, wherein classification collection electroplating wastewater is concentrated by a membrane, a large amount of separated water are reused in an electroplating production workshop after multi-stage treatment, the concentrated liquid after the concentration and the high-concentration waste liquid having the same property are subjectedto resource recovery to recover various heavy metals and the like, and the recovered waste liquid is subjected to deep treatment so as to achieve standard discharge. According to the present invention, the direct recovery process for heavy metal resources is fused into the electroplating wastewater treatment process, such that the precipitation conversion process of heavy metals is reduced, the transfer cost of solid hazardous waste is substantially reduced, the electroplating wastewater is subjected to heavy metal recovery while the wastewater is treated, and the whole treatment process canachieve less mud or mud-free electroplating wastewater treatment.
Description
Technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an idea of treating electroplating waste cement with water. Background technique [0002] Electroplating is an indispensable and important link in the contemporary industrial industrial chain. It has a wide range of applications in various fields such as machinery, electronics, automobiles, aviation, and aerospace. It plays a role in decoration, protection and increasing functions for various industrial products. Able to meet various actual needs. However, with the benefit of mankind, a large amount of electroplating wastewater, such as plating cleaning wastewater, waste bath liquid, equipment cooling liquid, and waste plating solution, has also been generated during the electroplating production process, making electroplating one of the three most polluting industries in the world today. If it is not properly treated, it will cause serious pollution to the environment, so...
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Login to View More IPC IPC(8): C02F9/14C02F103/16
CPCC02F9/00C02F2103/16C02F1/72C02F3/00C02F1/44C02F1/46C02F1/04C02F1/26
Inventor 赵德忠郑从欢周灿辉陈铭
Owner 江门市崖门新财富环保工业有限公司