Effects of RhP Photosynthetic Bacterial Preparation on Water Quality Improvement and Microbial Communities in Rivers and Lakes
Photosynthetic bacteria have been widely used in water environment remediation.However,researches on the effects of phototrophic bacteria on water quality and microbial communities in large water bodies such as rivers and lakes are still insufficient.We analyzed the microbial composition of a phototrophic bacterial product(RhP preparation)used for water pollution control and detected its influence on chemical oxygen demand(COD),total nitrogen(TN),and total phosphorus(TP)in experimental water.Simultaneously,we reviewed and analyzed the effect of this preparation on water quality during a three-year water pollution control process in Nanhu Lake,Yueyang(approximately 35 million cubic meters of water).Additionally,we tested the improvement effect of this preparation on water quality in a 1.9 km section of Shiti River,Zigong(approximately 500 000 cubic meters of water),and analyzed the changes in microbial communities in river water using high-throughput sequencing.Morphological,absorption spectrum,and high-throughput sequencing analyses revealed that the main effective component of the preparation was Rhodopseudomonas palustris,which exhibited strong capability in reducing COD,TN,and TP in the experimental water.The preparation had a significant improvement effect on the water quality of Nanhu Lake,with the highest removal rates of 53.39％for TN and 62.27％for TP.It showed improvements in the main pollution indicator COD of the water in Shiti River to some extent,with little impact on the richness and diversity of microbial communities.The preparation demonstrated good efficiency and ecological safety in water environment remediation,making it suitable for aquatic ecosystem management in rivers and lakes.
Photosynthetic bacteriarhodopseudomona palustriswater qualitymicrobial community
万方数据
维普
