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Aeration blowing method in case of sudden volatile halogenated alkane organic substance pollution of drinking water

A halogenated alkane, aeration stripping technology, applied in the field of water treatment, can solve the problem of inability to deal with volatile halogenated alkane organic pollutants in water source water, exceeding the standard and other problems

Inactive Publication Date: 2013-02-27
TSINGHUA UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0027] The purpose of the present invention is to provide an aeration and blow-off treatment method for dealing with excessive volatile haloalkane organic pollutants in water, so as to ensure the normal water supply of urban water supply industry in an economical, safe and efficient manner when the source water is suddenly polluted to solve the problem. The current drinking water treatment process cannot cope with the situation that the volatile haloalkane organic pollutants in the source water exceed the standard

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  • Aeration blowing method in case of sudden volatile halogenated alkane organic substance pollution of drinking water
  • Aeration blowing method in case of sudden volatile halogenated alkane organic substance pollution of drinking water
  • Aeration blowing method in case of sudden volatile halogenated alkane organic substance pollution of drinking water

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Embodiment Construction

[0094] The aeration stripping method for drinking water suddenly polluted by volatile halogenated alkanes is applicable to different types of water intake environments such as river diversion canals and lakes and reservoirs, and different implementation methods should be adopted for different types of water intake environments.

[0095] (1) Implementation methods for the water intake environment of the river diversion canal:

[0096] For the diversion channel of the river, the method of aeration stripping when the drinking water is suddenly polluted by volatile halogenated alkanes organic compounds is as follows: the aeration device should be implemented in front of the water intake of the diversion channel. If the water depth of the diversion channel of the river is less than the phase equilibrium height h of the corresponding material * , then lay the aeration hose directly at the bottom of the diversion channel, but it should not directly touch the bottom, at least 10cm hig...

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Abstract

The invention relates to an aeration blowing method in case of sudden volatile halogenated alkane organic substance pollution of drinking water, and belongs to the field of water treatment. The method is characterized in that: a blast aeration system is laid in water, and volatile organic substances are transferred from a water phase to a gas phase through aeration and removed. By the method, volatile organic pollutants such as trichloromethane, dibromomonochloromethane, monobromodichloromethane, carbon tetrachloride, tribromethane, 1,1-dichloroethylene, 1,2-dichloroethylene, trichloroethylene, tetrachloroethylene, 1,2-dichloroethane, 1,1,1-trichloroethane, 1,1,2-trichloroethane and the like which are stipulated in the related drinking water quality standard can be treated; volatile organic pollutants of which the over-standard concentration is about 5 times can be treated; equipment is easy to operate, operating cost is low, the water yield of a tap water factory cannot be influenced, and the method is conveniently applied by the water factory; and urban water supply when the volatile organic pollutants in source water exceed the standard can be efficiently, safely and economically realized, and the method also can be used for industrial water treatment.

Description

technical field [0001] The invention relates to a method for treating volatile organic compounds in water, in particular to an aeration blow-off method developed to deal with sudden pollution accidents of volatile halogenated alkane organic compounds in water, belonging to the field of water treatment. Background technique [0002] Since the water quality standard for drinking water sources requires that the pollutants in it should not exceed a certain limit, drinking water treatment usually does not require the treatment of volatile organic compounds. However, when drinking water sources are polluted by sewage containing a large amount of volatile organic pollutants, urban water supply companies have to face the problem of dealing with excessive volatile organic compounds. [0003] The current treatment methods commonly used in the drinking water industry include the following: [0004] (1) Physical method [0005] A adsorption method [0006] The adsorption method uses ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/20
Inventor 张晓健陈超张伟顾军农张春雷汪隽林爱武王丹
Owner TSINGHUA UNIV
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