益阳市黑臭水体底泥污染特征及疏浚深度判定研究OA
Sediment pollution characteristics and dredging depth determination of black-odorous water bodies in Yiyang
以益阳市马良湖、接城堤渠和白马山渠底泥为对象,分析重金属及氮磷营养盐污染特征,并结合多种污染评价方法和泥—水分配平衡实验判定环保疏浚深度.结果表明,不同水体底泥污染差异明显,马良湖以 Cd、Hg污染为主,接城堤渠主要受 Zn、Cd、Hg、Ni影响,白马山渠 Cu、Zn、Cd、Hg、Ni和 As污染较突出;营养盐整体呈表层富集特征.综合分析判定,原土壤质量二级标准较适合作为疏浚深度判定的主要标准.
Sediments from Maliang Lake,Jiechengdi Canal and Baimashan Canal in Yiyang were selected as research objects.The pollution characteristics of heavy metals as well as nitrogen and phosphorus nutrients were analyzed,and the environmental dredging depth was determined by combining multiple pollution assessment methods and sediment-water partition equilibrium experiments.The results showed that significant differences in sediment pollution were observed among different water bodies.The sediments of Maliang Lake were mainly polluted by Cd and Hg.Jiechengdi Canal was primarily affected by Zn,Cd,Hg and Ni.Severe pollution of Cu,Zn,Cd,Hg,Ni and As was detected in Baimashan Canal.Nutrients were generally enriched in the surface sediments.The secondary standard of original soil quality was verified to be suitable as the main reference for determining the dredging depth.
赵天亮;李紫辉;张玲;冀广鹏
湖南省建筑设计院集团股份有限公司,长沙 410012||昆明理工大学环境科学与工程学院,昆明 650500昆明理工大学环境科学与工程学院,昆明 650500湖南省建筑设计院集团股份有限公司,长沙 410012昆明理工大学环境科学与工程学院,昆明 650500||北京北水融智教育科技有限公司,北京 100085
资源环境
黑臭水体重金属污染营养盐污染底泥疏浚
black-odorous water bodiesheavy metal pollutionpollution of nitrogen and phosphorus nutrientssediment dredging
《环境保护科学》 2026 (3)
66-75,10
云南省科技厅重大专项课题(202202AG050019)
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