Mercuric chloride (HgCl2) is a common heavy-metal pollutant widely used in commercial products and industry, but its excessive use uncontrolled discharge have caused great harm to aquatic environments human health. To research the mechanisms of HgCl2 toxicity organisms, this study cultured green alga Scenedesmus quadricauda gradient concentrations (0, 0.1, 0.3, 0.5, 0.7, 0.9 mg/L) for 9 days. T...

The biocidal activity of 8 triorganotins R3S11X (R = butyl, phenyl, benzyl; X = oxide, chloride, acetate, naphthenate, TV, JV-diethyldithiocarbamate) on brown rot fungi, moulds mixture, benthic organisms, plankton alga Scenedesmus quadricauda, and crop plant has been investigated. The results suggest dependence between lipophilicity of bounded R groups and intensity of unfavourable effect. The ...

Since increasing the NO3 and NH4 make eutrophication in waterbodies, microalgae tolerance tohigh concentrations of NO3 and NH4 and their growth in these levels indicate the bioremediationpotential of nitrogen-rich wastewaters and produce efficient algal biomass in freshwaterenvironments. To evaluate the tolerance of green algae, Scenedesmus quadricauda to different NO3and NH...

Microalgae culture is an interesting step in wastewater treatment since it provides a tertiary biotreatment while also producing potentially valuable biomass that may be used for variety of applications. cultures, with their ability to utilize inorganic nitrogen and phosphate growth, provide elegant solution quaternary treatments. Scenedesmus quadricauda was employed three different doses, 2g/l...

aquatic environments are often contaminated by various industrial, agricultural and domestic sewage, while different pesticides have markedly different effects on aquatic life. scenedesmus spp. are often used as an indicator to show changes in physico-chemical and environmental conditions of the aquatic ecosystems. this study aimed to investigate the effects of different concentrations of pesti...