九江市琵琶湖底泥环境特征与生态清淤工程  

Sediment Environmental Characteristics and Ecological Dredging Project of Pipa Lake in Jiujiang

作　　者：向莹 张鸿涛[2] 高宏洲 王全军 李娟 黄守斌[1] 王小红 袁婧 XIANG Ying;ZHANG Hong-tao;GAO Hong-zhou;WANG Quan-jun;LI Juan;HUANG Shou-bin;WANG Xiao-hong;YUAN Jing(Beijing Guohuan Tsinghua Environment Engineering Design&Research Institute Co.Ltd.,Beijing 100084,China;School of Environment,Tsinghua University,Beijing 100084,China;Anhui Jiaming Environmental Protection Technology Co.Ltd.,Hefei 230000,China;Sanhe Branch,Langfang Ecological Environment Bureau,Langfang 065200,China)

机构地区：[1]北京国环清华环境工程设计研究院有限公司,北京100084 [2]清华大学环境学院,北京100084 [3]安徽佳明环保科技股份有限公司,安徽合肥230000 [4]廊坊市生态环境局三河分局,河北廊坊065200

出　　处：《中国给水排水》2021年第14期142-150,共9页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2018ZX07105003)。

摘　　要：针对九江市琵琶湖由于周边工厂企业和居民生活排污造成的底泥污染问题,提出了生态清淤、消除黑臭水体、景观绿化美化的综合解决方案,即检测剖析底泥污染特征→科学决策清淤深度和范围→优化清淤方式和设备→营造景观、处置底泥→综合评价工程效果。琵琶湖清淤底泥通过减量化与稳定化处理后,浸出毒性满足《危险废物鉴别标准浸出毒性鉴别》(GB 5085.3—2007)要求;淤泥脱水的余水经过处理后满足《污水综合排放标准》(GB 8978—1996)的二级标准,减轻了施工排水对湖水水质的影响;生态清淤工程施工后湖水水质显著提升。In view of the sediment pollution caused by sewage from surrounding factories,enterprises and residents in Pipa Lake,Jiujiang,this study puts forward a comprehensive solution of ecological dredging,black and odorous water elimination,and landscaping.Based on detection and analysis of the sediment pollution characteristics,the depth and scope of dredging is determined scientifically.Then the dredging methods and equipment are optimized to create landscape and dispose sediment.Finally the project effect is comprehensively evaluated.The extraction toxicity of the dredged bottom sludge after reduction and stabilization,meets the requirements of the Identification Standards for Hazardous Wastes—Identification for Extraction Toxicity(GB 5085.3-2007).The remaining water after sludge dewatering meets the second level criteria in Integrated Wastewater Discharge Standard(GB 8978-1996).The project alleviates the impact of construction drainage on the lake water quality.After the construction of ecological dredging project,the lake water quality has been significantly improved.

关 键 词：黑臭水体治理 底泥污染 生态清淤 

分 类 号：TU992[建筑科学—市政工程]