Surface Water Contamination Risk Assessment Modeled by Fuzzy-WRASTIC

2016 ◽  
Vol 88 (7) ◽  
pp. 589-601 ◽  
Author(s):  
Fatemeh Sadat Alavipoor ◽  
Zahra Ghorbaninia ◽  
Saeed Karimi ◽  
Hamidreza Jafari
Keyword(s):  
Risk Assessment ◽  
Surface Water ◽  
Water Contamination ◽  
Surface Water Contamination ◽  
Contamination Risk

scholarly journals The role of wastewater treatment plants in surface water contamination by plastic pollutants

2018 ◽  
Vol 45 ◽  
pp. 00054 ◽  
Author(s):  
Bozena Mrowiec
Keyword(s):  
Wastewater Treatment ◽  
Surface Water ◽  
Water Contamination ◽  
Membrane Filtration ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Point Sources ◽  
Municipal Sewage ◽  
Municipal Wastewater Treatment ◽  
Surface Water Contamination

The aim of this paper was to review the literature data regarding the physico-chemical characteristic of plastic pollutants discharged with municipal sewage, the practical possibility of removing microplastic particles from wastewater during different treatment steps in WWTPs and the problem of surface water contamination within them. Microplastics (the size range of 1 nm to < 5 mm), have been recognized as an emerging threat, as well as an ecotoxicological and ecological risk for water ecosystems. Municipal wastewater treatment plants (WWTPs) are mentioned as the main point sources of microplastics in an aquatic environment. Microplastic particles can be effectively removed in the primary treatment zones via solids skimming and sludge settling processes. Different tertiary treatment processes such as: gravity sand filtration, discfilter, air flotation and membrane filtration provide substantial additional removal of microplastics, and the efficiency of wastewater treatment process can be at a removal level of 99.9%. Nevertheless, given the large volumes of effluent constantly discharged to receivers, even tertiary level WWTPs may constitute a considerable source of microplastics in the surface water.

An integrative approach to assess ecological risks of surface water contamination for fish populations

2017 ◽  
Vol 220 ◽  
pp. 588-596 ◽  
Author(s):  
Raphael Santos ◽  
Aude Joyeux ◽  
Aurélien Besnard ◽  
Christophe Blanchard ◽  
Cédric Halkett ◽  
...  
Keyword(s):  
Surface Water ◽  
Water Contamination ◽  
Fish Populations ◽  
Integrative Approach ◽  
Ecological Risks ◽  
Surface Water Contamination
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