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Effects of in situ biological treatments on heavy metal release of urban river sediment

Content Provider	Springer Nature Link
Author	Liu, Min Wang, Rusong Huang, Jinlou
Copyright Year	2013
Abstract	A typical river in Yangzhou City was used to study the effects of artificial aeration, eco-brick cover, biological packing cover, and low-sited plant floating beds on the release of heavy metals from urban river sediments. This work showed that 1) the Cr release rate was decreased by 50.3%–89.6%, with an average of 59.3%, thereby reducing the Cr pollution load to the overlying water by 36.6%–82.7%, with an average of 53.3%; 2) the Zn release rate was reduced by 21.0%–88.9%, with an average of 42.3%, and the Zn pollution load of the overlying water was reduced by 38.0%–67.1%, with an average of 55.0%; 3) the Cu release rate was reduced by 27.5%–91.0%, with an average of 55.3%, and the Cu load of the overlying water was reduced by 57.1%–83.7%, with an average of 71.7%; 4) the Pb release rate was reduced by 11.8%–79.3%, with an average of 41.2%, and the Pb pollution load of the overlying water was reduced by −1.3%–70.7%, with an average of 29.8%.We also found that the effects of in situ biological treatments on the release of heavy metals were affected by the extent of sediment disturbance. For integrated applications, high-disturbance treatments should be combined with low-disturbance treatments to reduce the explosive release of pollutants caused by sediment disturbance during the treatment operation to achieve better overall treatment effects.
Starting Page	607
Ending Page	615
Page Count	9
File Format	PDF
ISSN	20952201
Journal	Frontiers of Environmental Science & Engineering in China
Volume Number	8
Issue Number	4
e-ISSN	2095221X
Language	English
Publisher	Higher Education Press
Publisher Date	2013-11-13
Publisher Institution	Chinese Universities
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	in situ biological treatments urban river sediment heavy metal pollution Environment
Content Type	Text
Resource Type	Article
Subject	Environmental Science

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