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Method and equipment for treating slight polluted water by integrated adsorption and separation

A technology of micro-polluted water, adsorption and separation, applied in the direction of adsorbed water/sewage treatment, etc., can solve the problems of increased floor space, high treatment cost, secondary pollution, etc., and achieves reduced floor space, high treatment efficiency, and device structure. Compact and simple effect

Inactive Publication Date: 2005-10-26
ZHEJIANG UNIV
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Problems solved by technology

Coagulation and sedimentation need to add chemicals, the treatment cost is relatively high, and it is easy to cause secondary pollution; while the sand filtration process is easy to clog, backwashing is difficult, and the quality of the effluent is poor
Moreover, adsorption and separation are carried out in different treatment units, which greatly increases the floor area, so it is not suitable for small-scale water treatment plants.

Method used

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  • Method and equipment for treating slight polluted water by integrated adsorption and separation
  • Method and equipment for treating slight polluted water by integrated adsorption and separation

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Embodiment Construction

[0016] refer to figure 1 The device for the integrated treatment of slightly polluted water by adsorption and separation of the present invention mainly includes a sewage bucket 1, a precoat bucket 3, a pump 11, a precoat membrane filter 13 and an air compressor 10, and the bottom of the precoat membrane filter 13 has an inlet Water pipe 17, the top is provided with water outlet pipe 5 and pressure gauge 6, has in the pre-coating film filter 13 the filter element 7 that is surrounded by the filter screen that is separated from the housing, and filter element 7 can be as figure 2 As shown, the rectangular cavity is composed of two metal filter screens 23 at the front and rear and the frame 22. The bottom of the filter element 7 is connected with a water pipe 16 and a ventilation pipe 8. The water inlet of the pump 11 is connected with two water inlet pipes. The water outlet is connected with two outlet pipes, the outlet of the pre-coating bucket 3 is connected to an inlet pipe...

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Abstract

The present invention disclose sa method for treating micropollutant water and its equipment. It is characterized by that said invention adopts a circulation pre-coating system to precoat filter elements of precoated membrane filter with diatomite, then makes the micropollutant water and bentonite mixed suspension undergo the process of filtration in the circulation filtration system, then the clean water which is filtered and treated by means of filter element can be discharged, and the compressed air can used for back-blowing off the diatomite and dried bentonite residum on the filter elements.

Description

technical field [0001] The invention relates to a method and device for treating slightly polluted water. technical background [0002] Conventional water treatment processes can effectively remove suspended solids and colloidal substances in raw water, but cannot effectively remove organic pollutants and disinfection by-products. Faced with the increasing pollution of water sources, especially the existence of organic compounds that form mutagenic substances and trihalomethanes and soluble organic compounds that can be used as carbon sources by microorganisms, people are prompted to research and develop new processes for removing such compounds. Adsorption can effectively remove soluble organic matter in water, and has become one of the effective measures in water treatment. [0003] Powdered bentonite has a good adsorption treatment effect on slightly polluted water containing soluble organic matter, but because bentonite is a powdery clay, it is prone to swelling after s...

Claims

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Application Information

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IPC IPC(8): C02F1/28
Inventor 雷乐成周明华邵振华
Owner ZHEJIANG UNIV
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