نتایج جستجو برای: tannery wastewater
تعداد نتایج: 34534 فیلتر نتایج به سال:
The research on synthesis of carbon from rice groats at various pyrolysis temperatures and its application for the recovery chromium wastewater tannery industry by varying 300, 400, 500 °C. results are analyzed in form determination yield, water content, ash iodine number. best condition with quality requirement is a temperature °C 760 mg.g-1 (iodine number). Adsorption kinetics was also carrie...
A culture-independent approach was used to elucidate the microbial diversity and structure in the anaerobic-aerobic reactors integrated with a constructed wetland for the treatment of tannery wastewater in Modjo town, Ethiopia. The system has been running with removal efficiencies ranging from 94%-96% for COD, 91%-100% for SO4(2-) and S(2-), 92%-94% for BOD, 56%-82% for total Nitrogen and 2%-90...
Chromium (Cr)-contaminated tannery wastewater is a major environmental concern, especially in developing countries, such as Pakistan, due to its use for crop irrigation, resulting food-chain contamination and health issues. In this study, we explored the distribution, speciation, hydrogeochemical behavior risks of Cr collected from various tanneries Kasur district Punjab, Pakistan. Tannery samp...
Leather tanning effluents are a source of severe environmental impacts. In particular, the unhairing stage, belonging to the beamhouse processes, generates an alkaline wastewater with high concentrations of organic matter, sulphides, suspended solids, and salts, which shows significant toxicity. The objective of this work was to evaluate the biodegradation of this industrial wastewater by combi...
The aim of this work is to design and integrate an optimized batch membrane process in a conventional purification process used for the treatment of tannery wastewater. The integration was performed by using two spiral wound membrane modules in series, that is, nanofiltration and reverse osmosis, as substitutes to the biological reactor. The membrane process was designed in terms of sensible fo...
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