水利工程施工中流域水环境污染现状与微生物修复技术研究  

Current Situation of Water Environment Pollution in Watershed during Water Conservancy Engineering Construction and Microbial Remediation Technology

作　　者：石真瑞 Shi Zhenrui(Henan Provincial Hydrology and Water Resources Center,Zhengzhou 450000,China)

机构地区：[1]河南省水文水资源中心,河南郑州450000

出　　处：《环境科学与管理》2024年第12期95-99,共5页Environmental Science and Management

摘　　要：为了降低水利工程建设过程中产生的废水对水资源的污染,提出水利工程施工中流域水环境污染现状与微生物修复技术。以某流域一段防洪工程为例,采集该区段水样并对污染现状进行了分析。以固定化微生物技术为指导,制备微生物修复小球,用于修复受到污染的水体。结果表明:悬浮物浓度下游比上游、中游高,流域水中存在重金属污染,流域生化需氧量在15~30 mg/L之间波动,说明该施工流域水环境受到中度污染。与修复前相比,修复后水体生化需氧量从27.63 mg/L下降到了7.44 mg/L mg/L,污染等级从中度污染下降到轻度污染,由此证明了固定化微生物技术的修复效果。In order to reduce the pollution of water resources caused by wastewater generated during the construction of water conservancy projects,the current situation of water environment pollution in the basin during water conservancy project construction and microbial remediation technology are proposed.Taking a flood control project in a certain watershed as an example,water samples were collected and the pollution status was analyzed.Guided by immobilized microbial technology,microbial remediation microspheres for the remediation of contaminated water bodies are prepared.The results show that the concentration of suspended solids in the downstream is higher than that in the upstream and midstream,and there is heavy metal pollution in the water of the watershed.The biochemical oxygen demand in the watershed fluctuates between 15~30 mg/L,indicating that the water environment of the construction watershed has been moderately polluted.Compared with before restoration,the biochemical oxygen demand of the repaired water decreased from 27.63 mg/L to 7.44 mg/L mg/L,and the pollution level decreased from moderate to mild,which proves the remediation effect of immobilized microbial technology.

关 键 词：水利工程施工 流域水环境 污染现状 微生物修复技术 

分 类 号：X172[环境科学与工程—环境科学]