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Novel blowoff and oxidation combined tower for polluted groundwater

A combined tower technology for groundwater pollution and oxidation, which is applied in the directions of water/sewage multi-stage treatment, degassed water/sewage treatment, oxidized water/sewage treatment, etc. It can solve problems such as difficult to achieve satisfactory treatment effect and complex pollution. , to achieve the effect of convenient implementation, novel device design, and large mass transfer driving force

Inactive Publication Date: 2011-11-16
EAST CHINA UNIV OF SCI & TECH
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AI Technical Summary

Problems solved by technology

[0005] The type of groundwater pollution in any polluted site is not single. The water contains soluble volatile organic compounds and refractory organic compounds. It is often difficult for a single process to meet the complex pollution of groundwater, or it is often difficult to achieve satisfactory treatment results with a single treatment process. The effective coupling of the two processes can achieve this goal and meet the treatment needs of groundwater of different types and pollution degrees of polluted sites

Method used

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  • Novel blowoff and oxidation combined tower for polluted groundwater
  • Novel blowoff and oxidation combined tower for polluted groundwater
  • Novel blowoff and oxidation combined tower for polluted groundwater

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Embodiment 1

[0031] Please see attached figure 1 , 2a, 2b and 3, a new type of groundwater pollution stripping oxidation combination tower, including dissolved volatile organic compound stripping section and difficult volatile organic compound reaction section; install the devices in the order of oxidation device 2 and stripping device 1 from bottom to top , the stripping device 1 and the oxidation device 2 are connected into an integral tower structure through a flange structure;

[0032] Described blow-off device 1 comprises blow-off section cylindrical body 1, multilayer tray 8, feed inlet 3, air inlet 4, gas outlet 5, and each tower section is connected into a cylindrical body by flange;

[0033] The blow-off device is the blow-off section of four circular sieve plates 8, including each inlet and outlet parts and tray parts; the top of the cylinder is provided with a liquid inlet 3 and a tail gas discharge port 5; the liquid inlet 3 is provided There are water pipes and liquid inlet b...

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Abstract

The invention relates to a novel blowoff and oxidation combined tower for polluted groundwater. The combined tower has blowoff action on volatile organic matters and oxidation action on involatile organic matters in groundwater, and is approximately divided into a blowoff section and an oxidation section from top to bottom according to the reaction types, and the blowoff section and the oxidation section are connected by a flange structure. The combined tower has the advantages that: the device design is novel, and the functions of a blowoff tower and an oxidation tower are integrated, thus saving investment; after the blowoff section and the oxidation section are integrated, the high pressure of the blowoff section contributes to the sufficient dissolving of ozone in the oxidation section in water, and the escaping ozone can further contact with water; the combined tower has a wide range of treatment objects, is suitable for the treatment of the groundwater polluted by volatile and / or involatile organic matters, and has the advantages of high efficiency, energy conservation and no secondary pollution; and at the same time, aiming at the groundwater with different pollution site types and pollution degrees, the remediation technology requirements of the groundwater with different pollution site types can be realized by flexibly adjusting the tower plate number and process control switch, and the combined tower has a broad application prospect.

Description

【Technical field】 [0001] The invention relates to the field of groundwater technology, in particular to a novel combination tower for blowing and deoxidizing groundwater pollution. 【Background technique】 [0002] The pollution of groundwater in my country is very serious, among which organic pollution is the most common and most difficult to control, and has gradually become a research hotspot in the scientific community. Chlorinated hydrocarbons such as perchlorethylene (PCE), trichlorethylene (TCE), and chloroform are frequently detected in groundwater around the world. At present, the technologies for remediating such polluted environments mainly include extraction treatment, permeable reactive walls, and bioremediation. Extraction treatment is a conventional method to control organic pollution of groundwater, and it is the most commonly used decontamination measure at present. In the hundreds of contaminated site areas in the United States, about 75% of the groundwater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F1/20C02F1/78
Inventor 林匡飞李丽廖志强李炳智林俐冲彭俊彪贾楠张秀苹李晶张猛吕树光李辉张卫罗启仕李忠元郭伟
Owner EAST CHINA UNIV OF SCI & TECH
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