微生物强化技术对城镇河道水体水质提升的应用和研究

Application and research of microbial enhancement technology to improve urban river water quality

本文在收集资料及实地考察的基础上,以井研县茫溪河城区段为研究对象,提出了以生物修复为核心的"曝气充氧+悬浮填料+投加微生物菌剂"的河道水体治理提升技术,并将此技术推广于茫溪河流域河道整治的治理中。选取茫溪河城区段为研究对象,选取高锰酸盐指数、NH_(3)-N、TP作为水质指标进行了研究分析。微生物强化技术的核心技术为微生物菌剂,本研究选用由酵母菌、放线菌、乳酸菌、光合菌四大类菌种按照一定比例进行配比复合而成的ML3复合菌剂。将"曝气充氧+悬浮填料+投加微生物菌剂"的微生物强化修复技术应用于茫溪河城区段黑臭的治理中,经过一段时间的运行后,水体中悬浮物(SS)削减率高于50%,氨氮(NH_(3)-N)、总磷(TP)、化学需氧量(COD)削减率高于20%,河道基本消除黑臭。

On the basis of data collection and field investigation,taking the urban section of Mangxi River in Jingyan County as the research object,this paper puts forward the river water treatment and improvement technology of"aeration and oxygenation+suspended filler+adding microbial agent"with bioremediation as the core,and popularizes this technology in the river regulation of Mangxi River Basin.The urban section of mangxi river was selected as the research object,and permanganate index,NH_(3)-N and TP were selected as water quality indexes for research and analysis.The core technology of microbial intensification technology is microbial agent.In this study,ML3 composite agent composed of yeast,actinomycetes,lactic acid bacteria and photosynthetic bacteria in a certain proportion was selected.The microbial enhanced remediation technology of"aeration and oxygenation+suspended filler+addition of microbial agent"is applied to the treatment of black odor in the urban section of Mangxi river.After a period of operation,the reduction rate of suspended solids(SS)in the water body is higher than 50%,the reduction rate of ammonia nitrogen(NH_(3)-N),total phosphorus(TP)and chemical oxygen demand(COD)is higher than 20%,and the black odor is basically eliminated in the river channel.