River branch water treatment system and method

Abstract

The invention discloses a river branch water treatment system and method. A biochemical degradation unit degrades organic substances at an initial stage and decomposes ammonia nitrogen and total phosphorus in sewage, and the effluent water is clarified through a back-end water purification unit. Biochemical degradation and water purification alternately act to ensure the treatment efficiency and the normal operation of the process, thereby gradually clarifying the river branch water to realize a virtuous cycle. According to the invention, a circulating water treatment concept is adopted, and the effluent water obtained by treating the sewage at the downstream of a river branch is pumped to the upstream of the river branch, so that the river branch water is mobilized to realize cyclic running, the dead water is changed into the circulating water, and the whole water body realizes cyclic running, thereby improving the cross sectional flow of the river branch, increasing the flow speed of the river branch water, enhancing the self-purification capacity of the river branch water, and realizing automatic silt peeling of a river branch silt bed without artificially desilting periodically. Thus, artificial purification and water self-purification are combined, and the investment and operation management cost of desilting and sewage treatment is reduced. The technique is advanced and mature, and the treated effluent water has favorable water quality indicators and economic indicators.

Description

technical field [0001] The invention is used in the field of river gushing water treatment, and in particular relates to a river gushing water treatment system and method. Background technique [0002] With the development of social economy and the improvement of people's living standards, the dense population brings domestic sewage, and the spread of small factories brings industrial wastewater. These untreated domestic sewage, untreated or untreated industrial production wastewater are also discharged with When the organic pollutants exceed the limit that the river water body can hold, the dissolved oxygen in the water will be consumed rapidly and become anoxic, and the river water body will become eutrophic and the water body will become eutrophic. Black and smelly, planktonic aquatic microorganisms thus gain space for rapid growth. With the rapid increase of these plants, the dissolved oxygen in the water will be more depleted. Due to the lack of oxygen, the survival of...

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Problems solved by technology

[0011] A lot of practice has proved that although the above several river gushing water treatment methods have their own characteristics, the conditions of different river gushing are different, so they cannot be simply repeated, and a single method of treatment may not cure the symptoms, or it will not be effective for a long time

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