Unpowered bio-filter water purifying system with oxygenation and backwash functions

Abstract

The invention relates to an unpowered biological filter chamber water purification system having both the oxygen increasing function and the back flushing function, which belongs to the water treatment technique field. The system is composed of an unpowered biological filter chamber and two sedimentation tanks, can implement biochemical reactions such as anaerobic reaction, facultative reaction and aerobic reaction without power, and has obvious effects of denitrogenation and phosphorus fixing to sewage, and the system can be used for the unpowered back flushing and oxygen increasing and keeping the biological filter chamber from being blocked after long-term running. Compared with the prior art, the system has the following effects of: (1) stable water purification effect and good effluent water quality; (2) energy saving and realizable unpowered oxygen increasing and back flushing; (3) low project investment and running costs; and (4) simple structure and convenient operation management. The system can be used for purifying landscape water, tail water of sewage plants, domestic and agricultural wastewater with medium and low pollution, and can also be used as an independent water purification unit, and a plurality of units can be used in series, thereby realizing the purification treatment to sewage with rather high concentration.

Description

technical field [0001] The invention relates to a non-powered biological filter water purification system with the functions of oxygenation and backwashing, which belongs to the technical field of water treatment and can be used for the purification of landscape water with medium and low pollution, tail water of sewage plants, domestic and agricultural sewage deal with. Background technique [0002] In the context of tight energy supply, serious water pollution, and global climate change, it is particularly important to advocate energy conservation and emission reduction in the whole society. In terms of water treatment, various water purification methods and equipment emerge in an endless stream, among which the common ones are filtration system and biological filter reactor and so on. However, most of the common filtration systems have disadvantages such as energy consumption, easy clogging, and complex pipe and valve structures, and the single filtration equipment itself...

AI Technical Summary

Problems solved by technology

However, most of the common filtration systems have disadvantages such as energy consumption, easy clogging and complex structure of the pipe and valve, and the single filtration equipment itself does not have the biochemical reaction functions such as oxygenation, nitrification and denitrification.

Submerged biofilters also generally have problems such as power aeration, energy consumption, easy clogging, and poor water purification effect.

The above defects all affect and limit the wide application of biological filtration water purification method in production and life

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