Method for restraining consumed speed rate of oxygen dissolved in polluted water and water quality acidified

Abstract

The invention discloses a method for repairing polluted rivers, lakes and reservoir water bodies and suppressing the consumption rate of dissolved oxygen and water quality acidification of the polluted water bodies, which belongs to the technical scope of suppressing water quality deterioration in environmental governance. This method inhibits the life activities of aerobic and facultative microorganisms in the water body by irradiating the water body with low-intensity and large-dose ultraviolet rays to slow down the consumption of dissolved oxygen in the water body and the accumulation of organic acids in the metabolic process, but ensures that they are produced at a lower cost. Speed ​​growth metabolism and keep the water body self-purifying. Thereby improving the pollutant load capacity of the water body and delaying the deterioration of water quality. It will not produce secondary pollution, and therefore will not damage the ecosystem of the water body. The ultraviolet irradiation device has fluidity and can be operated continuously or intermittently. The operation is more flexible, and it can be operated at a lower cost after one investment. This is a preventive measure for water body restoration and is a practical and feasible way to delay water body dissolution. The technology of oxygen concentration drop and water acidification has broad application prospects.

Description

technical field [0001] The invention belongs to the technical scope of suppressing water quality deterioration in environmental treatment, and particularly relates to a method for suppressing the consumption rate of dissolved oxygen in polluted water bodies and water acidification, which can repair polluted rivers, lakes and reservoir water bodies. Background technique [0002] The pollution of water environment in my country is very serious. According to the survey, more than 90% of the urban rivers in our country are seriously polluted. Moreover, most urban rivers have lost the characteristics of natural rivers, the water flow is very slow, even the water body is still, and the natural reoxygenation ability of the river has become very poor; on the other hand, due to the dense population living on both sides of the urban river, a large number of Organic matter enters urban river water bodies in the form of point source or non-point source, which leads to a decrease in the ...

AI Technical Summary

Problems solved by technology

However, since this technology aerates the entire water body, and the water body area of ​​rivers, lakes and reservoirs is generally very large, the aeration equipment consumes a lot of mechanical power, and the cost of construction and operation is very high; For rivers, lakes and reservoirs with complex water conditions, its practical operation is difficult to achieve

More importantly, the aeration and oxygenation technology is a remedy for the symptoms rather than the root cause. It is a remedial measure taken when the dissolved oxygen has been reduced. At this time, the water quality of the water body has declined and the water body function has been partially lost.