Toxicological assessment and management options for boat pressure-washing wastewater (CROSBI ID 222670)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Gerić, Marko ; Gajski, Goran ; Oreščanin, Višnja ; Kollar, Robert ; Franekić, Jasna ; Garaj-Vrhovac, Vera
engleski
Toxicological assessment and management options for boat pressure-washing wastewater
Boats are washed periodically for maintenance in order to remove biofoulants from hulls, which results in the generation of wastewater. This study aimed at evaluating the cyto/genotoxic and mutagenic properties of wastewater produced by pressure washing of boats. The chemical characterization of this wastewater showed that Cu, Zn, V, Cr, Fe, Pb, and select organic contaminants exceeded the maximum allowable values from 1.7 up to 96 times. The wastewater produced negative effects on human lymphocytes resulting in decreased cell viability after 4 and 24 h of exposure. Chromosome aberration, micronucleus, and comet assay parameters were significantly higher after 24 h of exposure. At the same time, the Salmonella typhimurium test showed negative for both TA98 and TA100 strains at all of the concentrations tested. After the treatment of wastewater using electrochemical methods/ozonation during real scale treatment plant, removal rates of colour, turbidity and heavy metals ranged from 99.4% to 99.9%, while the removal of total organic carbon (TOC) and chemical oxygen demand (COD) was above 85%. This was reflected in the removal of the wastewater’s cyto/genotoxicity, which was comparable to negative controls in all of the conducted tests, suggesting that such plants could be implemented in marinas to minimize human impact on marine systems.
Wastewater ; Mutagenicity ; Cytotoxicity ; Genotoxicity ; Electrocoagulation ; Electrooxidationozonation
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Podaci o izdanju
114
2015.
164-170
objavljeno
0147-6513
10.1016/j.ecoenv.2015.01.018
Povezanost rada
Kemija, Biotehnologija, Biologija