我国城市水体底泥污染特征分析及治理方案探讨  

Analysis the Pollution Characteristics of Urban Water Bodies Sediment in China and Discussion on Treatment Schemes

作　　者：范波 Fan Bo(North China Municipal Engineering Design and Research Institute Co.,Ltd.,Tianjin 300074,China)

机构地区：[1]中国市政工程华北设计研究总院有限公司,天津300074

出　　处：《广东化工》2022年第4期167-169,共3页Guangdong Chemical Industry

摘　　要：本文研究了城市水体新生底泥对上覆水DO、ORP等水体黑臭指标的影响,及向水体释放NH_(3)^(-)N和PO_(4)^(3-)-P的特征规律。结果表明,长期未清淤的底泥中大量的还原性物质会造成水体厌氧环境,且会降低水体ORP,导致水体黑臭;同时新生底泥释放的NH_(3)^(-)N和PO_(4)^(3-)-P会引起水体富营养化风险。城市水体水质的长效保持需采取底泥定期清淤与生态修复相结合的措施,清除历史污染的同时,减少新生污染的富集。The effects of newly generated sediment on the black and odorous indexes of the overlying water,such as DO and ORP,and the characteristics of NH_(3)^(-)N and PO_(4)^(3-)-P released into the water were studied in this paper.The results show that a large number of reducing substances in the sediment that has not been removed for a long time will cause anaerobic environment in water,reduce ORP and lead to black and odorous water.At the same time,NH_(3)^(-)N and PO_(4)^(3-)-P released from newly generated sediment will cause the risk of eutrophication.Long-term maintenance of urban water quality requires the combination of regular sediment removal and ecological restoration,so as to eliminate historical pollution and reduce the accumulation of new pollution.

关 键 词：城市水体 底泥污染 溶解氧 氧化还原电位 氨氮 正磷酸盐 富营养化 黑臭 

分 类 号：X52[环境科学与工程—环境工程]