Water treatment method for surface source pollution treatment

Abstract

The invention relates to a water treatment method for surface source pollution treatment. The water treatment method comprises the following steps: a water collecting channel is formed in the area where the surface source pollution treatment is needed, so as to carry out the first-stage high-concentration rainwater collection; a flow guide stem is arranged on one side of the water collection channel, wherein a surface flow wetland and a microorganism attachment base are sequentially arranged on one side of the flow guide stem and an ecological pond is arranged on the other side, so that the initial high-concentration rainwater flows into the surface flow wetland and the microorganism attachment base on one side of the flow guide stem from the water collecting channel and purification treatment is carried out; rainwater flows into the ecological pond at the other side of the flow guide stem from the tail end of the flow guide stem under the action of a reflux pump, and further purification treatment is carried out by the ecological pond; the purified rainwater reaches an electric adjusting weir gate to form a circulation loop. According to the method, the first-stage high-concentration rainwater can be circularly purified in the wetland system, and the water discharge stability can be fully guaranteed, storage adjustment, circulation and purification of the surface source pollution can be realized, and finally discharged water is up-to-standard and discharged into a downstream water body or recycled.

Description

technical field [0001] The invention relates to the technology in the field of rainwater treatment, in particular to a water treatment method for controlling non-point source pollution. Background technique [0002] With the implementation of my country's water environment treatment projects, point source pollution has been initially effectively controlled and treated, but the non-point source pollution formed by rainfall in cities, villages and farmland has become a difficult point of treatment, and non-point source pollution has a great impact on water bodies. The contribution of pollution is also gradually increasing. Because non-point source pollution has the characteristics of dispersion, randomness, and diversity, it is difficult to control it. [0003] The use of constructed wetlands to treat stormwater runoff is a new rainwater treatment technology developed in recent years. Constructed wetlands used to prevent and control non-point source pollution in the prior art...

AI Technical Summary

Problems solved by technology

[0005] (1) The water volume of the rainwater runoff fluctuates greatly. In the existing technology, the water volume adjustment of the constructed wetland is separately provided with interception and storage facilities, resulting in a large area

[0006] (2) The concentration of pollutants in the rainwater runoff entering the wetland system fluctuates greatly, and it is difficult for the traditional wetland effluent to achieve stable compliance

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