Five bioassays (inhibition of lettuce germination and growth, earthworm mortality, inhibition of springtail population growth, avoidance by springtails) were compared, using four coke factory soils contaminated by PAHs and trace elements, before and after biotreatment. For each bioassay, several endpoints were combined in an 'ecoscore', a measure of test sensitivity. Ecoscores pooled over all t...

The thriving agro-industry sector accounts for an essential part of the global gross domestic product, as need food and feed production is rising. However, industrial processing agricultural products requires use water at all stages, which consequently leads to vast amounts effluents with diverse characteristics, contain a significantly elevated organic content. This fact reinforces action cont...

the aim of this study was to determine the feasibility of coupling an electrochemical process with a biological treatment in order to degrade phosmet, an organophosphorous pesticide. the absence of biodegradability of phosmet by pseudomonas fluorescens and activated sludge was verified in our operational conditions. so, a conventional biological treatment is not appropriate for phosmet polluted...

Industrial dyeing processes produce a large amount of wastewater that contains many organic compounds such as different type of dyes and pigments, dispersing agents, surfactants which are difficult to treat. Considering that little studies have been done on biodegradation of oil-soluble azo dyes, the lake of this issue is completely felt. In this study, biotrea...

A native cyanide-degrading bacterial consortium was isolated from goldmine tailing sediments. Mine tailings are toxic effluents due to their metal–cyanide complexes. The able degrade an initial sodium cyanide concentration ranging 5 120 mg L−1 in alkaline synthetic wastewater (pH > 9.2), for a maximum of 15 days. free biodegradation efficiency 98% the highest tested and followed first-order ...