System for purifying eutrophic water employing artificial flow aeration coupled to biological film floating bed

Abstract

The invention discloses a system for purifying eutrophic water employing artificial flow aeration coupled to a biological film floating bed. The system comprises biofilm colonization, a floating bed, and artificial flow aeration, wherein a biofilm colonization carrier is a soft fiber filler, and is combined with the floating bed to form a biological film floating bed unit; the artificial flow aeration is that a plurality of push flow aerators arranged below the biological film floating bed unit are started towards the same direction to form circulating flow water, and supply oxygen to the water. The system adopts a plurality of biological film floating bed units, which are fixed by an anchor stake, connected by a connecting rod, and arranged in an oval shape; a guide wall is arranged in the middle; the push flow aerators are arranged below the floating bed. Compared with the common biological film floating bed, the artificial flow aeration is increased, the water mobility is enhanced, an independent aeration system does not need to be arranged, the removal efficiency of pollutants are high, the water eutrophication degree can be effectively relieved, and the operation mode can be regulated and controlled according to the dynamic change of water temperature and water quality, and the system is more stable, efficient and energy-saving in operation.

Description

technical field [0001] The invention belongs to the field of environmental protection, and in particular relates to a system for purifying eutrophic water bodies by artificial flow generation and aeration coupled with biofilm floating beds. Background technique [0002] With the rapid development of my country's economy and society in recent years, environmental problems are becoming more and more serious, especially water pollution is very prominent, which seriously restricts the sustainable development of social economy and environment around water bodies. Many lakes (reservoirs) are important water sources and scenic spots for local residents. However, due to the continuous development of industrial and agricultural production and population growth along the lakes, the scale of aquaculture continues to expand, and the amount of pollutants entering the lakes continues to increase. Generally speaking, the fluidity of lake water is poor, which makes the water quality of lake...

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Problems solved by technology

[0006] The main area of ​​action of ordinary floating bed or biofilm treatment system is fixed. In the environment with poor water fluidity, this system mainly treats the pollutants in the corresponding area. The treatment effect on other floating waters without floating beds is poor, and it is easy to Form a "dead zone" with limited degradation of pollutants in the entire polluted water area

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