Method for comprehensively treating river channel water ecology through photocatalysis

Abstract

The invention discloses a method for comprehensively treating river channel water ecology through photocatalysis. The method comprises steps as follows: 1), upstream and downstream ranges of a to-be-treated river channel are determined, dams are built on the river channel respectively, and an upstream dam (3.1) and a downstream dam (3.2) are formed; 2), water insulation barriers (4) are arranged along banks of the river channel (1) in the downstream direction from a drain port (2), and a diversion trench (5) is formed between each water insulation barrier (4) and the corresponding river bank; 3), a microorganism contact oxidation area (6), a first photocatalysis area (7) and a first floristic area (8) are sequentially distributed in each diversion trench (5); 4), second photocatalysis areas (9) are distributed in a main river channel behind the upstream dam, and photocatalytic nets are further arranged in the second photocatalysis areas (9), and second floristic areas (10) are distributed on two sides of the main river channel. The isolation treatment method is adopted, so that the condition that the treatment difficulty is increased due to dilution of sewage at the drain port is effectively prevented, and the treatment cost is saved.

Description

technical field [0001] The invention relates to the field of water body ecological restoration, in particular to a photocatalytic water ecological comprehensive treatment method for river courses. Background technique [0002] The sewage discharged from the sewage outlets of cities and towns will eventually flow into the urban rivers. After the sewage flows into the rivers, it will be diluted and diffused in the rivers, which will increase the pollution area. In addition, the polluted water from the upper reaches will continue to enter, making it difficult to be treated. The water bodies in the region are quickly polluted, which is also the main reason why it is difficult to manage fluid water bodies. The sewage discharged into urban rivers also presents complicated pollution, which is not only reflected in the eutrophication of water bodies caused by excessive nitrogen and phosphorus elements, but also brings pollution to rivers with refractory organic matter. Using a sing...

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Problems solved by technology

However, the ecological purification and restoration methods in the prior art have neglected a key problem. In the process of sewage treatment, they are constantly polluted by ups...

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