globalchange  > 过去全球变化的重建
DOI: 10.1016/j.marpolbul.2017.06.011
Scopus记录号: 2-s2.0-85020281031
论文题名:
The impact of increased oxygen conditions on heavy metal flocculation in the Sefidrud estuary
作者: Karbassi A.; Marefat A.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2017
卷: 121, 期:2018-01-02
起始页码: 168
结束页码: 175
语种: 英语
英文关键词: Estuary ; Flocculation ; Heavy metal ; Oxidation-reduction potential ; Quality of estuary water
Scopus关键词: Biochemical oxygen demand ; Dissolution ; Dissolved oxygen ; Estuaries ; Flocculation ; Heavy metals ; Lead ; Manganese ; Oxygen ; Redox reactions ; Saline water ; Water quality ; Estuarine waters ; Flocculation process ; Flocculation rate ; Oxidation reduction potential ; Removal of metals ; Research objectives ; Self-purification ; Water environments ; Chemicals removal (water treatment) ; copper ; fresh water ; heavy metal ; lead ; manganese ; nickel ; oxygen ; salt water ; zinc ; heavy metal ; dissolved oxygen ; estuarine pollution ; flocculation ; heavy metal ; pollutant removal ; reduction ; water quality ; Article ; concentration (parameters) ; controlled study ; environmental impact ; estuary ; flocculation ; heavy metal removal ; oxidation reduction potential ; salinity ; water management ; water quality ; chemistry ; environmental monitoring ; estuary ; flocculation ; water pollutant ; Gilan ; Iran ; Sefidrood Basin ; Environmental Monitoring ; Estuaries ; Flocculation ; Metals, Heavy ; Oxygen ; Water Pollutants, Chemical
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science ; Earth and Planetary Sciences: Oceanography ; Environmental Science: Pollution
英文摘要: Similar to natural filters, estuaries are capable of removing considerable amounts of heavy metal from rivers that flow into saline water environments by turning the metal into flocs. The research objective was to investigate the self-purification potential of estuaries in removal of metal by flocculation processes. Hence, flocculation of metal was studied experimentally in 5 aquaria with varying salinity levels. Subsequently, experiment was repeated while dissolved oxygen increased. Results indicated that at higher dissolved oxygen, the flocculation rates of Mn, Ni, and Pb increased by 9%, 20%, and 26%, respectively. However, Zn and Cu showed 23% and 26% of decrease in flocculation rate, respectively. In the analysis of the relationship between oxidation reduction potential and estuarine water quality it was found that ORP escalated with an increase in the dissolved oxygen. This finding suggests that ORP can be used to govern the potential of flocculation processes at estuarine zone. © 2017 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/88092
Appears in Collections:过去全球变化的重建
全球变化的国际研究计划

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作者单位: Graduate Faculty of Environmental, University of Tehran, P.O. Box 14155-6135, Tehran, Iran

Recommended Citation:
Karbassi A.,Marefat A.. The impact of increased oxygen conditions on heavy metal flocculation in the Sefidrud estuary[J]. Marine Pollution Bulletin,2017-01-01,121(2018-01-02)
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