Black-odor riverway water body treatment system

Abstract

The invention discloses a black-odor riverway water body treatment system. The system comprises a first partition wall and a second partition wall which are sequentially arranged close to a first sidebank body of a black-odor river channel, a third partition wall and a fourth partition wall which are sequentially arranged close to a second side bank body of the black-odor river channel, a sewagepurification device arranged in a water body in the center of the river channel, and a filtering type conveying belt; the sewage purification device comprises a funnel-shaped water inlet, a vertical connecting pipe and a purification unit, wherein the purification unit comprises a horizontal first anaerobic reaction pipe, a vertical first inverted U-shaped reaction pipe, a horizontal second anaerobic reaction pipe, a vertical second inverted U-shaped reaction pipe and a horizontal aerobic reaction pipe which are connected in sequence. When the system runs, river sediment of black-odor water body can be cleaned, continuous sludge of river bottom sludge to the water body is avoided, meanwhile, an anaerobic-redox-anaerobic-inorganic-aerobic mode is comprehensively used, the water body is deeply purified, the sediment environment is thoroughly changed, the running cost is low, and secondary pollution is avoided.

Description

technical field [0001] The invention belongs to the technical field of water treatment for environmental protection, and in particular relates to a black and odorous river water treatment system. Background technique [0002] With the rapid development of my country's economy and the rapid expansion of cities, the discharge of industrial wastewater and domestic sewage is increasing day by day, a large amount of sewage is discharged into urban river water bodies, the concentration of organic and inorganic pollutants is seriously exceeding the standard, and seasonal or year-round black and smelly river water bodies appear. . Large areas of black and odorous river water bodies appear, resulting in poor river landscape effects and increasingly prominent ecological and environmental problems. At the same time, the decline in water quality leads to increased sewage treatment costs and seriously affects urban development. Therefore, it is of great significance to control black and ...

AI Technical Summary

Problems solved by technology

The amount of water required by this method is too large, and after the water is changed, the sediment is not fixed, and it is very easy for the sediment to pollute the water body again, which will cause the water body to deteriorate rapidly again.

[0005] The second is the method of adding chemicals, generally adding a flocculant, which can precipitate the suspended solids in the black and odorous water body, and make the water clear in a short time, but the flocculated and precipitated pollutants still exist in the bottom mud In the process, these pollutants will soon cause the water body to repeatedly black and smelly

[0006] The third is the aeration method. The aeration method is to pass air or oxygen into the black and odorous river water body to increase the oxygen content in the water body. When using this method to control the black and odorous river water body, a large amount of Oxygen-containing gas, the scale is huge, at the same time, adopting this method can not reduce the concentration of nitrogen and phosphorus in the water body, therefore, can not fundamentally solve the black and odor problem of the river water body

[0007] The fourth is the biological ecological control method, which absorbs nitrogen and phosphorus in the black and odorous river water by planting aquatic plants. However, in this method, the oxygen produced by the photosynthesis of the herbaceous plants is released into the air through the leaves, which is difficult to solve the black and odorous The problem of low dissolved oxygen in the river water body, the growth of organisms is slow, and is affected by the seasons. Therefore, the governance effect is not obvious and the governance efficiency is low

[0008] In summary, the regulation of urban black and odorous river water is a complex and huge system engineering, and a single water purification or sludge restoration technology often cannot achieve the desired effect

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