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High-salt cyanide-containing wastewater treatment process and system

A technology of treatment system and treatment process, which is applied in the field of wastewater treatment, can solve the problems of high hazards of wastewater and environmental pollution, and achieve the effects of low operating cost, long process flow and stable operation effect

Inactive Publication Date: 2017-09-19
CEEP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are no engineering cases and reports on the treatment of metal zirconium production wastewater in China, but this kind of wastewater is extremely harmful, and if it is not treated effectively, it will cause great environmental pollution problems

Method used

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  • High-salt cyanide-containing wastewater treatment process and system
  • High-salt cyanide-containing wastewater treatment process and system
  • High-salt cyanide-containing wastewater treatment process and system

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Embodiment Construction

[0046] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention All modifications of the valence form fall within the scope defined by the appended claims of the present application.

[0047] A high-salt cyanide-containing wastewater treatment process, such as figure 1 As shown, the coagulation precipitation, ammonia stripping, electrochemical, chemical oxidation and biochemical reaction processes are fully combined, and the characteristics of each process are used to remove various characteristic pollutants in a targeted manner, solving the problems of high salt, high cyanide, high COD and Difficulties in dealing with high ammonia nitrogen. Even ...

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Abstract

The invention discloses a high-salt cyanide-containing wastewater treatment process and system, which are mainly used for performing the treatment of neutralization , cyanogen removal, ammonia nitrogen removal, COD (Chemical Oxygen Demand) removal and the like on metal zirconium production wastewater. The process involves the combined processes of coagulative precipitation, ammonia stripping, electrochemical / chemical oxidization, biochemical reaction and the like. The device comprises treatment facilities such as a coagulative precipitation device, an ammonia stripping device, an electrolysis cyanide breaking device, a chemical cyanide removing device, an electro-catalysis oxidizing device, a chemical oxidizing device, a water distribution hydrolytic tank, an A / O (Anoxic / Oxic) biochemical tank, and a secondary precipitation tank. By adopting the high-salt cyanide-containing wastewater treatment process and system, the problem related to treatment of high-salt, high-cyanide, high-COD and high-ammonia and nitrogen wastewater is solved. The wastewater treatment process has a long flow, but the features of different processes are brought into full play; particular pollutants are removed specifically, and the running cost is relatively low; moreover, pollutants such as cyanogen, COD and ammonia nitrogen are removed fundamentally, and a stable running effect is achieved.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment and relates to a process and device for treating high-salt cyanide-containing wastewater, which is particularly suitable for the treatment of wastewater produced in metal production industries such as metal zirconium, and belongs to the technical field of environmental protection. Background technique [0002] Cyanides (compounds containing cyano-CN) are highly toxic pollutants that are ubiquitous in wastewater produced by industries such as electroplating, dyestuffs, mining, metallurgy, petrochemicals, and coking. The direct discharge of cyanide-containing wastewater will cause great harm to fish and other aquatic organisms and damage the ecology. In addition, cyanide-containing wastewater will cause agricultural production reduction, livestock death, and ultimately damage human health. [0003] High-salt wastewater is particularly harmful to the environment, especially high-salt was...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/18C02F101/30
CPCC02F1/20C02F1/461C02F1/52C02F1/72C02F1/725C02F1/76C02F3/30C02F3/34C02F9/00C02F2101/18C02F2101/30C02F2201/007C02F2301/08
Inventor 朱来松孙阳高占平王皖蒙
Owner CEEP CO LTD
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