Biological integrated purification process for governing black and odorous river channels

Abstract

The invention discloses a biological integrated purification process for governing black and odorous river channels, which comprises the following steps that: (1) carrying out substrate pre-treatment; (2) building a plant zone; (3) building a water sinking plant colony; (4) supplementing a water source and stocking aquatic animals; (5) carrying out maintenance and management. The traditional aquatic plants are used for realizing the effect of purifying the water quality, in addition, decomposers of microbes in the ecosystem are sufficiently utilized, and the blank and odorous substances can be fast decomposed, absorbed and converted at high efficiency through the microbes. Through the matched use of the aquatic plants and the microbes, the pollutant removal efficiency is maximized.

Description

technical field [0001] The invention relates to a biological comprehensive purification technology for polluted river channels, in particular to a biological comprehensive purification process for controlling black and odorous river channels. Background technique [0002] At present, with the development of cities and the improvement of industrial and agricultural production levels, the pollution of rivers and water systems in cities is becoming more and more serious, and the phenomenon of black and odor is obvious, which seriously affects the living environment of citizens. The main causes of river black and odor are: [0003] 1 The pollution load is too heavy. Due to the inadequate construction of the sewage pipe network and the serious leakage and leakage of sewage, a large amount of industrial wastewater, domestic sewage, rainwater, garbage and farmland fertilizers are directly discharged into the river without treatment, making the organic pollution load far exceed the...

AI Technical Summary

Problems solved by technology

[0003] 1 The pollution load is too heavy

Due to the inadequate construction of the sewage pipe network and the serious leakage and leakage of sewage, a large amount of industrial wastewater, domestic sewage, rainwater, garbage and farmland fertilizers are directly discharged into the river without treatment, making the organic pollution load far exceed the self-purification capacity of the water body itself, resulting in Severe hypoxia in the water body

[0004] 2 The supply water source is polluted, and the bottom sediment is seriously deposited

The water source used for water diversion and water exchange is polluted, so that it is impossible to restore the black and smelly river through water exchange. After long-term accumulation, the sediment is seriously silted

[0005] 3 Poor flow of the river

Due to municipal construction, installation of box culverts or other reasons, many water systems are not smooth and have poor fluidity, which makes the river easily hypoxic and further deteriorates the water quality

[0006] 4 Destruction of river water ecosystem

[0008] The use of biological comprehensive purification technology, that is, by building a complete river ecosystem and relying on the efficient purification capabilities of microorganisms, aquatic plants, and animals to treat black and odorous rivers, is not widely used, and some are limited to a single artificial wetland treatment method , the purification system lacks biodiversity, is easily disturbed and affected by the external environment, and cannot achieve long-term stable results