Coupling water supply purifying method of biological reinforced powder active carbon and diatomite

A powdered activated carbon and bio-enhanced technology, applied in chemical instruments and methods, biological water/sewage treatment, adsorbed water/sewage treatment, etc. The effect of prolonging the working cycle time and reducing the content of pollutants

Active Publication Date: 2010-06-23
华方水务(中国)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the first generation of drinking water production technology is difficult to meet people's increasing requirements for drinking water quality

Method used

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  • Coupling water supply purifying method of biological reinforced powder active carbon and diatomite
  • Coupling water supply purifying method of biological reinforced powder active carbon and diatomite
  • Coupling water supply purifying method of biological reinforced powder active carbon and diatomite

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Such as figure 1 As shown, the implementation method of dynamic membrane separation operation of bio-augmented powdered activated carbon and diatomite to treat raw water is as follows:

[0067] 1. Main water quality parameters of raw water

[0068] Water quality type: lake eutrophication raw water, low temperature and low turbidity type; turbidity 10-20NTU; permanganate index 5-7mg / L; ammonia nitrogen 0.6-2.0mg / L (ammonia nitrogen is low in summer and high in winter); Phosphorus 0.03 ~ 0.1mg / L; pH 7.0 ~ 7.2; other indicators are in line with the third category of surface water standards (omitted).

[0069] 2. Design operating parameters

[0070] The design hydraulic retention time of the bio-enhanced powdered activated carbon and diatomite combined water supply purification tank is 3 to 5 hours;

[0071] The concentration of the designed mixture is: 20-25g / L; the amount of powdered activated carbon and diatomaceous earth added for the first time should make the suspe...

Embodiment 2

[0097] Such as figure 2 As shown, the implementation method of the ultrafiltration membrane separation operation of the combination of bio-enhanced powdered activated carbon and diatomaceous earth to treat raw water is as follows:

[0098] 1. Main water quality parameters of raw water

[0099] Water quality type: lake eutrophication raw water, low temperature and low turbidity type; turbidity 10-20NTU; permanganate index 5-7mg / L; ammonia nitrogen 0.6-2.0mg / L (ammonia nitrogen is low in summer and high in winter); Phosphorus 0.03 ~ 0.1mg / L; pH 7.0 ~ 7.2; other indicators are in line with the third category of surface water standards (omitted).

[0100] 2. Design operating parameters

[0101] The design hydraulic retention time of the bio-enhanced powdered activated carbon and diatomite combined water supply purification tank is 3 to 5 hours;

[0102] The concentration of the designed mixture is: 20-25g / L; the amount of powdered activated carbon and diatomaceous earth added ...

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Abstract

The present invention relates to a coupling water supply purifying method of biological reinforced powder active carbon and diatomite, which comprises the following steps: firstly, powder active carbon and diatomite are continuously fed into raw water which needs to be purified quantitatively to be stirred to mix through mechanism to enable the powder active carbon and the diatomite to suspend in water to absorb organic matters in the raw water; then, biological powder active carbon and diatomite particles coated with microorganism are formed by a labor reinforced method; and organic pollutants in the raw water is further degraded by a microorganism function. Compared with the prior art, on the basis of the coupling water supply purifying technique of biological reinforced powder active carbon and diatomite, the present invention has three functions of absorption, biological degradation and dynamic film separation, and can further reduce the content of pollutants in the raw water, in particular to aim to the problems of high raw-water permanganate index, ammonian and organic pollutants, and the like. Thus, drinking water after being purified satisfies every index in the new sanitary standard for life drinking water GB 5749-2006 issued by China.

Description

technical field [0001] The invention relates to water supply treatment technology, in particular to a method for purifying water supply by combining biologically enhanced powder activated carbon and diatomite. Background technique [0002] Due to the increasing pollution of drinking water sources and the continuous detection of organic substances and pathogens harmful to human health, more stringent drinking water quality standards have been formulated at home and abroad. In December 2006, my country promulgated the new "Drinking Water Sanitation Standard" GB5749-2006 to replace the original GB5749-1985, and the water quality indicators were expanded from 35 to 106 items. In the new standard, the number of microbiological indicators increased from 2 to 6, the number of drinking water disinfectants increased from 1 to 4, the number of inorganic compounds in toxicological indicators increased from 10 to 21, and the number of organic compounds in toxicological indicators increa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28C02F3/34
Inventor 曹达文金伟董秉直范瑾初王洪武李景华
Owner 华方水务(中国)有限公司
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