Nitrogen exchange across the sediment-water interface after dredging: The influence of contaminated riverine suspended particulate matter

Dredging has been widely implemented in shallow lakes to reduce internal nitrogen (N) loading. The suspended particulate matter (SPM) coming from polluted rivers usually contains high levels of N and ultimately deposits on the dredged sediment surfaces near the river mouth. To study the influence of...

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Veröffentlicht in:	Environmental pollution (1987) 2017-10, Vol.229, p.879-886
Hauptverfasser:	Liu, Cheng, Chen, Kaining, Wang, Zhaode, Fan, Chengxin, Gu, Xiaozhi, Huang, Wei
Format:	Artikel
Sprache:	eng
Schlagworte:	Bacteria China Environmental dredging Environmental Monitoring Geologic Sediments - chemistry Lakes Nitrogen - analysis Nitrogen Cycle Nitrogen exchange Particulate Matter River mouth area Rivers - chemistry Sediment-water interface Suspended particulate matter Water Water Pollutants, Chemical - analysis
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Zusammenfassung:	Dredging has been widely implemented in shallow lakes to reduce internal nitrogen (N) loading. The suspended particulate matter (SPM) coming from polluted rivers usually contains high levels of N and ultimately deposits on the dredged sediment surfaces near the river mouth. To study the influence of the riverine SPM on N exchange across the sediment-water interface (SWI) after dredging, a 360-day experiment was carried out comparing un-dredged and dredged sediments from Lake Chaohu, China. Dredged treatments showed a significant increase (p
ISSN:	0269-7491 1873-6424
DOI:	10.1016/j.envpol.2017.07.054