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Method and device for controlling water pollution in river ecosystem

A technology for river ecosystems and water body pollution, applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of low temperature limitation, difficult to use all year round, etc., and achieve easy operation , low cost and short repair time

Inactive Publication Date: 2015-11-04
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that the existing methods for controlling water pollution in river ecosystems are easily restricted by low temperature under natural conditions and difficult to use throughout the year, the purpose of the present invention is to provide a more economical, better effect and suitable for natural conditions throughout the year. A method for controlling river pollution, and a special device for realizing the method

Method used

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Experimental program
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Effect test

Embodiment 1

[0014] Embodiment 1: a kind of method that is applied to river ecosystem to control water body pollution, adopts the method that biofilm method and physical adsorption method combine to control water body pollution, comprises the following steps:

[0015] In the first step, a combined sewage treatment system is composed of a biological contact oxidation treatment device and a physical adsorption treatment device; in the second step, the combined sewage treatment system is placed in a river water body. Among them, the biological contact oxidation treatment device is made of ceramsite with a particle size of 3mm through high-concentration sewage artificially -3-

[0016] It is made by inoculating hanging film, and then acclimating high-, medium-, and low-concentration sewage and bagging. The physical adsorption treatment device is made by mixing 10 parts by mass of sand and 1 part by mass of clay and bagging.

[0017] Among them, the biological contact oxidation treatment de...

Embodiment 2

[0035] Embodiment 2: A kind of method that is applied to river ecosystem to control water body pollution, adopts the method that biofilm method and physical adsorption method combine to control water body pollution, comprises the following steps: the first step, biological contact oxidation treatment device and a The physical adsorption treatment devices are jointly formed into a combined sewage treatment system; in the second step, the combined sewage treatment system is placed in a river water body. Among them, the biological contact oxidation treatment device is made of ceramsite with a particle size of 3 mm, artificially inoculated with high-concentration sewage, and then bagged after domestication of high-, medium-, and low-concentration sewage. The sand and kaolin are evenly mixed and bagged at a weight percentage of 1:1. The sand for construction projects has more than 90% of the particles with a particle diameter greater than 1mm, and the kaolin has more particles with ...

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Abstract

The invention discloses a method and an apparatus for controlling water body pollution in a river ecosystem. The water body pollution is controlled by a combined method of a biofilm method and a physical adsorption method; the combined method is implemented by the same device. The apparatus applied in the method is composed of a bio-contact oxidation processing device and a physical adsorption processing device. According to the invention, the bio-contact oxidation processing device is made by loading ceramsite with successfully formed biofilm, and can play a good role for purifying the water body in a season with relatively warm weather. In autumn and winter seasons with relatively low air temperature, the physical adsorption processing device is used to remove ammonia nitrogen and phosphor in the water body to effectively control the water body pollution. The method and the apparatus can be used under natural conditions all the year around; are easily available in raw materials; have no secondary pollution; and are more economical in cost and convenient for promotion and application.

Description

technical field [0001] The invention belongs to the technical field of water pollution control and ecological restoration, and in particular relates to a method and a device for removing ammonia nitrogen and phosphorus in water bodies in river ecosystems. Background technique [0002] With the development of industry and agriculture, the rapid increase of population and the popularization of urbanization, a large amount of domestic sewage and industrial wastewater containing ammonia nitrogen and phosphorus are discharged into natural water bodies, which leads to the eutrophication of water bodies. Studies have shown that more than 90% of my country's lakes are currently becoming eutrophic, and the degree of eutrophication in most waters will continue to deepen. At present, the main methods for ammonia nitrogen removal reported at home and abroad include biological method, chemical precipitation method, activated carbon adsorption method, coagulation precipitation metho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
Inventor 张志强孙嘉谢宝元王海燕张雅吴智洋
Owner BEIJING FORESTRY UNIVERSITY
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