Prof. Huang Shaobin and others use the cost-free oxygen release of plants in water such as bitter grass and combine with micro-aerated biological filtration technology. It can stimulative the efficient degradation of organic pollutants, the occurrence of aerobic nitrification and denitrification, and the enrichment and removal of phosphorus. It is expected to achieve low-cost, high-efficiency and continuous purification and maintenance of lakes and rivers after restoration.

Sustainable purification and maintenance mechanism of rivers and lakes