The method of controlling river pollution by sediment active covering

Abstract

The invention relates to river pollution treatment and provides a method of treating river channel pollution through bottom mud active covering. The method comprises the steps of firstly arranging a separating barrier in a polluted river channel, the separating barrier forming an enclosed shape; secondly using a suspension arm to lift an active covering layer used for preventing upward dissipation of bottom mud pollutants in the polluted river channel into the enclosed shape and spreading the active covering layer underwater; thirdly, after spreading, arranging fixing devices for fixing the active covering layer in the polluted river channel on the top of the active covering layer. The separating barrier arranged in the traditional polluted river channel facilitates the location of the active covering layer; the fixing devices can prevent the active covering layer from drifting underwater, so that the repair effect is guaranteed. The separating barrier can prevent the pollution of bottom mud beyond the separating barrier and without laying of an active covering layer.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to river channel pollution treatment. Background technique [0002] With the rapid development of my country's social economy, population growth and the acceleration of urbanization, the amount of sewage generated is increasing day by day, while my country's sewage treatment rate is relatively low, resulting in a large amount of untreated sewage that meets the standards directly entering our country's surface water bodies. It has caused the pollution of many surface water bodies in our country. [0003] In the prior art, the contaminated water body is often repaired by covering with sediment. The structure of the existing sediment isolation layer only adopts a multi-layer stacked structure, and there is no anti-seepage membrane in the sediment isolation layer. It is easy to cause the isolation effect of the sediment isolation layer to be poor, and the sediment is ea...

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Problems solved by technology

[0003] In the prior art, the contaminated water body is often repaired by covering with sediment. The structure of the existing sediment isolation layer only adopts a multi-layer stacked structure, and there is no anti-seepage membrane in the sediment isolation layer. It is easy to cause the isolation effect of the sediment isolation layer to be poor, and the sediment is easy to escape pollutants

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