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

Abstract

The invention provides a method for restoring polluted water body of river, lake and reservoir as well as for controlling oxygen consume rate of polluted water body dissolving and water quality acidation. It is to do low-strength large quantity ultraviolet rays irradiating to water body to restrain life action of aerobic and facultative oxygen microbe in in to delay water body dissolving oxygen consume and accumulation of organic acid in metabolizing process, but to ensure them growing and metabolizing in lower rate to make water body keeping self-purification function, thus to increase pollutant load-bearing capacity of water body and delay water quality worsen. The ultraviolet irradiating equipment has flowability and can be operated in continuous type or batch-type.

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.