The purification effect of heavy polluted river water by combined process of ecological aeration floating bed and permeable reactive barrier (EAFB-PRB) was investigated in a pilot study.

A micro-aerated ecological floating bed system was developed to mitigate the negative influences of black-odor,oxygen deficiency and high concentration of ammonia-nitrogen in polluted river systems.

Based on this,a research on the purification of the water by micro-aerated ecological floating bed was conducted.

By lengthening food chain of floating bed ecosystem and strengthening characteristic of microbial enrichment on the bed,a combined ecological floating bed using hydrophyte,aquatic animal and microbial ecosystem as main body was constructed,and the improvement effect of eutrophic source water quality was investigated.

The ecological floating bed system was constructed at bank side of the Linjiang River in Chongqing.

By analyzing water quality difference before and after construction of floating bed,before and after removal of floating bed as well as between the bedside and open waterway,the purification effect of ecological floating bed on an estuary was investigated,and its purification mechanism was analyzed.

The development of biological floating bed and biological contact oxidation combination technique is based on the characteristics of land plants of absorbing nutrients.

Study on coal gasification wastewater treatment with aerated biological fluidized bed (ABFB);