Biological purifying system of water body on side slope of river or lake

Abstract

The invention discloses a biological purifying system of a water body on the side slope of a river or lake. The biological purifying system comprises first microbial carrier devices arranged along both sides of a river bank and second microbial carrier devices arranged on a river bottom; the first microbial carrier devices and the second microbial carrier devices are composed of building wastes and biological films attached to the surfaces of the building wastes; the building wastes are mounted and fixed on the river bank and over the river bottom by steel wire meshes or filler balls; the biological films include aerobic bacteria films and anaerobic bacteria films. The biological purifying system disclosed by the invention is low in investment and operation cost; the purpose of treating wastes with wastes is achieved by utilizing building wastes; an biofilm formation effect of microbes is good; no secondary pollution is caused to the environment; a water body purifying and decontamination effect is remarkable.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a biological purification system for river, lake and slope water bodies. Background technique [0002] With the rapid development of the country's economy, sewage collection and treatment facilities are seriously lagging behind, causing a large amount of sewage to flow directly into the river. At present, the water quality standards of most rivers and lakes cannot meet the requirements of cross-section assessment, so measures are urgently needed for treatment. The commonly used river water purification treatment measures mainly include pipeline sewage interception, decentralized construction of small sewage treatment stations, and temporary pollution control measures of magnetic separation. However, the following shortcomings still exist in the above three existing sewage treatment methods. The investment in the pipeline network for intercepting sewage is relatively large, and the...

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Problems solved by technology

However, the following shortcomings still exist in the above three existing sewage treatment methods. The investment in the pipeline network for intercepting sewage is relatively large, and the demolition and relocation in urban areas or other areas with dense buildings is relatively large. Generally, it needs to be implemented according to the regional planning. longer period

Disadvantages of decentralized construction of processing stations are relatively large investment and operation management costs

The magnetic separation technology can only remove part of the insoluble pollutants, the removal rate of ammonia nitrogen and total phosphorus is extremely low, and the effluent water quality is still inferior to Class V water quality, which is far from meeting the water quality requirements of the assessment, and it is easy to produce a large amount of chemical sludge that is harmful to the environment cause secondary pollution

At present, there is no low-cost, easy-to-implement, and zero-pollution river and lake sewage purification treatment method

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