Study on Selection and Dosage of Microbial Agents for Ecological Treatment of Rivers and Lakes
In order to understand the purification effect and optimal dosage of different commercially available microbial strains on polluted river and lake water bodies,indoor experiments are conducted to select commercially available microbial agents with better purification effects,determine the optimal dosage,and use them as engineering application cultivation bacterial strains.The experimental results show that overall,photosynthetic bacteria 1#,nitrifying bacteria 3#,and bacillus 8#have the best removal effects on ammonia nitrogen(NH3-N),total phosphorus(TP),and chemical oxygen demand(CODCr)in polluted river water,after 40 h,the removal rates of NH3-N and TP can all exceed 50%,and the removal rate of CODCr can also exceed 40%.The removal rates of NH3-N,CODCr,and TP are the highest when the bacterial liquid dosage of photosynthetic bacteria 1#is 2 g/L,and the bacterial powder dosage of nitrifying bacteria 3#and bacillus 8#is 0.02 g/L.In practical engineering,considering both cost and effectiveness,the above dosage can be mixed with microbial agents.
polluted water bodiesecological treatmentmicrobial agentsselectiondosagephotosynthetic bacterianitrifying bacteriabacillus
万方数据
维普
