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Method for advanced treatment of industrial wastewater with biological technique and membrane technique

A technology for industrial wastewater and advanced treatment, applied in biological water/sewage treatment, chemical instruments and methods, water/sewage multi-stage treatment, etc. High water purification rate, small footprint, no secondary pollution

Inactive Publication Date: 2009-07-29
范兆科
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The discharge of industrial wastewater is large, the concentration of pollutants is high, and it is difficult to treat
The traditional treatment methods of industrial wastewater include physical treatment, chemical treatment and biological treatment, each of which has irreparable defects
Large area, large investment, and poor treatment effect. The most difficult thing to deal with is that there is only input but no output. Enterprises cannot afford to steal emissions, resulting in only treatment but no effect.

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0009] Get 10 tons of industrial waste water, filter through 400 mesh membrane filters (developing and producing by Zhejiang Xinsheng Biotechnology Co., Ltd.), concentrate with an inorganic ceramic membrane with an aperture of 50nm, control the pressure to be 3Kg, and separate it into clear liquid and Concentrate. 6 tons of clear liquid flowed into the storage tank of the organic membrane equipment; 4 tons of concentrated liquid were put into the bioprocessor, treated with a microbial flocculant mainly composed of Rhodococcus erythroflates for 1 hour, and then filtered through a 400-mesh membrane filter , Inorganic ceramic membrane with a pore size of 50nm is concentrated, the pressure is controlled at 3Kg, and it is separated into clear liquid and concentrated liquid. 3 tons of clear liquid flow into the storage tank of the organic membrane equipment; 1 ton of concentrated liquid is put into the bioprocessor for recycling.

[0010] 9 tons of clear liquid use organic membrane...

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Abstract

The invention discloses a method for the advanced treatment of industrial wastewater through biotechnology and membrane technology, which is characterized by comprising the following steps: performing inorganic membrane concentration after the industrial wastewater is filtered by a membrane filter first, and then performing biological treatment; putting the concentrated solution after the concentration through an inorganic membrane into a biological treater which adopts a microorganism flocculating agent to treat the concentrated solution so as to purify the wastewater; and separating the clear solution after the concentration through the inorganic membrane in an organic membrane device, recycling the clear water after the separation, and discharging impurities into the biological treater to be treated. The method can thoroughly control pollutants of the industrial wastewater, has high clear water utilization rate, and is superior to the prior other arts for controlling the industrial wastewater; besides, the facilities used in the method have small occupied area and less investment, and the investment cost for controlling the industrial wastewater is easy to recover.

Description

Technical field: [0001] The invention relates to a method for treating industrial waste water, in particular to a method for advanced treatment of industrial waste water by using biotechnology and membrane technology. Background technique: [0002] With the deepening of industrialization, environmental pollution has become a threat to human existence. The discharge of industrial wastewater is large, the concentration of pollutants is high, and it is difficult to treat. The traditional treatment methods of industrial wastewater include physical treatment, chemical treatment and biological treatment, each of which has irreparable defects. The area is large, the investment is large, and the treatment effect is poor. The most difficult thing to deal with is that there is only input but no output. Enterprises cannot afford to steal emissions, resulting in only treatment but no effect. Contents of the invention [0003] The purpose of the present invention is to provide a meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F1/44C02F3/34
Inventor 范兆科
Owner 范兆科
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