Polluted water restoration method

Abstract

A polluted water restoration method is as follows: removal of organic matter and other pollutant-enriched bottom mud out of water is not needed, only the surface layer bottom mud aeration is needed, by surface layer bottom mud oxygenation and degradation of organic matters in the bottom mud, the redox potential is reduced, dissolved oxygen in bottom water is increased, the environment growth of aquatic plants is improved, and the polluted water restoration method is a method for treatment and long-term maintaining of polluted water ecological environment by aquatic plant (underwater forest) restoration.

Description

technical field [0001] The invention relates to the field of polluted water treatment, in particular to a recovery method for polluted water bodies. Background technique [0002] With the rapid development of China's industry and agriculture and the process of urbanization, the discharge of industrial wastewater and domestic sewage is increasing. According to several years of investigation, the water bodies of lakes in most cities in China are seriously eutrophic. Due to water pollution, the transparency decreases and submerged plants are inhibited. growth, resulting in widespread destruction of aquatic vegetation. However, once the submerged vegetation is destroyed and becomes an algae-type lake dominated by phytoplankton, due to the accumulation of organic matter, the nature of the sediment changes, and the recovery of aquatic plants becomes very difficult. Submerged plants are known as underwater forests, which play a pivotal role in the maintenance of aquatic ecosystems...

AI Technical Summary

Problems solved by technology

However, the cost of sediment dredging is very high, and at the same time, new pollution is generated, and the removal of the most active microbial-rich sediment on the surface degrades pollutants greatly reduces the self-purification function of the water body itself.