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Biological activated carbon treatment equipment and method for electroplating wastewater cod

A technology of biological activated carbon and electroplating wastewater, which is applied in the fields of metallurgical wastewater treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc., to achieve the effect of good oxygenation, convenient flow rate, and small liquid disturbance.

Active Publication Date: 2016-02-10
SHANGHAI LIGHT IND RES INST
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Problems solved by technology

[0007] The present invention proposes a biological activated carbon treatment equipment and method for electroplating wastewater COD to solve the problems existing in the existing methods

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  • Biological activated carbon treatment equipment and method for electroplating wastewater cod
  • Biological activated carbon treatment equipment and method for electroplating wastewater cod
  • Biological activated carbon treatment equipment and method for electroplating wastewater cod

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Embodiment Construction

[0028] According to the characteristics of COD in electroplating wastewater, the embodiments of the present invention propose using biological activated carbon to treat COD in electroplating wastewater in combination with the unique advantages of biological activated carbon technology. The focus of the embodiments of the present invention is to exert the biological oxidation function.

[0029] The biological activated carbon method uses the microbial degradation on the surface of activated carbon and the adsorption of activated carbon to remove organic matter. Since microorganisms can preferentially degrade organic matter in water, the adsorption load of activated carbon is reduced, the water flow rate of the carbon bed is increased when it reaches "breakthrough" or "failure", the service life of activated carbon is extended, and the regeneration frequency of activated carbon is reduced. Reduce production costs and energy consumption.

[0030] The strong adsorption function o...

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Abstract

The invention relates to an electroplating wastewater COD bioactive carbon treatment apparatus and a method thereof. The treatment apparatus comprises a sand filter tank, a water flow tank, a dissolved air pressure pump, a dissolved air tank and a bioactive carbon reactor. The apparatus is characterized in that the water inlet of the dissolved air tank is connected with the input end of the dissolved air pressure pump to partially input inlet water from the dissolved air pressure pump, and compressed air is input from the air inlet of the dissolved air tank to pressurize dissolved air in the dissolved air tank. Wastewater is input to the bioactive carbon reactor in order to remove organic matters in wastewater, a dissolved air water outlet tube is arranged below the active carbon column of the bioactive carbon reactor, and small pores are distributed on the dissolved air water outlet tube to discharge wastewater and fine uniform-granularity bubbles generated after reduced pressure release.

Description

technical field [0001] The invention relates to the field of wastewater treatment, in particular to a biological activated carbon treatment device and method for electroplating wastewater COD. Background technique [0002] In the electroplating industry, according to the different plating types and electroplating processes, the organic waste in the wastewater generated during the production process includes oily wastewater, wastewater containing different complexed refractory organic substances, etc. With the improvement of electroplating wastewater treatment discharge standards and monitoring efforts, the up-to-standard discharge of COD (chemical oxygen demand) in electroplating wastewater has become a difficult point in treatment and governance. Electroplating wastewater has the following characteristics: high salinity; the main source of COD is refractory biodegradable organic pollutants. The current electroplating wastewater treatment technologies (such as chemical prec...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/34C02F103/16
Inventor 杨林邱真真
Owner SHANGHAI LIGHT IND RES INST
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