Reactor for deep purification of drinking water and deep purification method of drinking water

A technology for deep purification and drinking water, applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve the complex operation and management of water plants, increase process complexity and head loss problems, to achieve the effect of improving removal capacity and ensuring safety

Active Publication Date: 2012-02-15
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this scheme further increases the process complexity and head loss, and the water plant operation management is more complicated

Method used

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  • Reactor for deep purification of drinking water and deep purification method of drinking water
  • Reactor for deep purification of drinking water and deep purification method of drinking water

Examples

Experimental program
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Effect test

Embodiment 1

[0054] designed to build as figure 1 The shown reactor for the deep purification of drinking water; wherein, a biological oxidation unit is located between a main ozone oxidation unit and an ultrafiltration membrane filtration unit; the biological oxidation unit and the ultrafiltration membrane filtration unit set in the same reaction pool.

[0055] The main ozone oxidation unit includes two parts: an ozone contact tank 4 and an ozone reaction tank 5 .

[0056] A separator separates a container into the ozone contact tank 4 and the ozone reaction tank 5, and there is a gap between the separator and the bottom of the container; in the ozone contact tank The top of 4 is provided with water inlet 1, and the bottom is equipped with ozone aeration head 2, and described ozone aeration head is connected with ozone generator 3 by pipeline; The biological oxidation unit mentioned above is connected.

[0057] The biological oxidation unit includes biological filler 10 , aeration devi...

Embodiment 2

[0067] Design and establish the reactor for the deep purification of drinking water as in Example 1. The method of deep purification of drinking water using the above reactor is as follows: the water to be treated enters the ozone contact tank 4 from the water inlet 1, and the ozone generated by the ozone generator 3 is dispersed by the ozone aeration head 2 and then fully contacted with the water to be treated and dissolved to form Dissolved ozone, the hydraulic retention time of water in the ozone contact tank is 4 minutes, and then enters the ozone reaction tank 5 together to generate ozone oxidation reaction, and makes the hydraulic retention time of water in the ozone reaction tank be 20 minutes; The semi-soft filler is fixed in the biological oxidation unit, and the effluent from the ozone reaction tank 5 enters the steady flow area 7 of the reaction tank, and the water is uniformly distributed through the perforated plate 9 and then flows through the carbon fiber filled ...

Embodiment 3

[0072] Design and establish the reactor for the deep purification of drinking water as in Example 1. Design and establish the reactor for the deep purification of drinking water as in Example 1. The method of deep purification of drinking water using the above reactor is as follows: the water to be treated enters the ozone contact tank 4 from the water inlet 1, and the ozone generated by the ozone generator 3 is dispersed by the ozone aeration head 2 and then fully contacted with the water to be treated and dissolved to form Dissolved ozone, water has a hydraulic retention time of 3 minutes in the ozone contact tank, and then enters the ozone reaction tank 5 to generate an ozone oxidation reaction, and makes the water hydraulic retention time in the ozone reaction tank 15 minutes; the combination of activated carbon fiber material The filler is fixed in the biological oxidation unit, and the effluent from the ozone reaction tank 5 enters the steady flow zone 7 of the reaction ...

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Abstract

The invention relates to a reactor for deep purification of drinking water and a deep purification method of drinking water. The reactor comprises a main ozone oxidation unit, a biological oxidation unit and an ultrafilter membrane filtration unit, wherein the biological oxidation unit is positioned between the main ozone oxidation unit and the ultrafilter membrane filtration unit; and the biological oxidation unit and the ultrafilter membrane filtration unit are disposed in a same reaction tank. Ozone oxidizes and destroys hardly degraded pollutants and converts high molecular weight organicmatters into intermediate and low molecular weight organic matters. After ozonization, an effluent respectively enters into the reaction tank fixed with a biological filling material and an ultrafilter membrane assembly. When the pollution of the water source is severe, powdered active carbon can be also added. The active carbon is used to absorb intermediate molecular weight or volatile organic compounds; microorganisms on the surface of the biological filling material and on the surface of the powdered active carbon are used to remove ammonia nitrogen and low molecular weight organic matters; and the security of the microorganisms is guaranteed by ultrafiltration. The reactor provided by the invention can be used for deep purification of polluted water sources, and also can be applied for deep processing of urban sewage treatment plants and reclaimed water.

Description

technical field [0001] The invention belongs to the field of drinking water purification, in particular to a reactor for deep purification of drinking water capable of realizing separation of ozone oxidation, microbial degradation and ultrafiltration, and the depth of drinking water filtered by ozone oxidation, microbial degradation and ultrafiltration membrane method of purification. Background technique [0002] my country will implement the "Drinking Water Sanitation Standard (GB5749-2006)" in 2012. Compared with the "Drinking Water Sanitation Standard (GB5749-1985)", the new drinking water standard has greatly increased the indicators of synthetic organic substances such as pesticide chemicals and disinfection by-products, and set the limit of ammonia nitrogen concentration in water to 0.5mg / Below L. In addition, some urban drinking water sources are polluted by natural organic matter, and the oxygen consumption is difficult to meet the standard; some urban drinking w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 曲久辉刘锐平兰华春刘会娟俞文正
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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