نتایج جستجو برای: bioreduction of hexavalent chromium
تعداد نتایج: 21165796 فیلتر نتایج به سال:
the potential of citrobacter freundii, a gram negative bacteria for the remediation of hexavalentchromium (cr(vi)) and trivalent chromium (cr(iii)) from aqueous solutions was investigated. bioremediationof cr(vi) involved both biosorption and bioreduction processes, as compared to only biosorption processobserved with respect to cr(iii) bioremediation. in the case of cr(vi) bioremediation studi...
Biotreatment of hexavalent chromium has attracted widespread interest due to its cost effective and environmental friendliness. However, the difficult separation of biomass from aqueous solution and the slow hexavalent chromium bioreduction rate are bottlenecks for biotechnology application. In this approach, a core-shell structured functional polymer coated magnetic nanocomposite was prepared ...
Background and Aim: Discharge of industrial wastewater containing hexavalent chromium into the environment can have harmful effects to the types of organisms. So, chromium should remove before discharging to the environment with an effective method. The purpose of this study of is hexavalent chromium removed with Peganum harmala granular seeds(PGS). Materials and Methods: In this experim...
purpose: this study aimed to analyze the effects of removal of hexavalent chromium using carbonated almond green hulls. in the present study, derived carbon fromalmond green hulls of zonal district of iran were used to remove hexavalent chromium from synthetic wastewater. materials and methods: the effects of ph (2-10), adsorbent dose (2-24 g/l), cr (vi) concentration (10-100 mg/l), contact tim...
Introduction: One of the heavy metals is chromium which is used in trivalent and Hexavalent oxidation state in industries such as, glass, ceramic, tannery, leather especially in electroplating industries. Hexavalent Chromium has proven several health hazards such as a carcinogen. The aim of this study was to investigate the efficiency of Melia azedarach ash in the removal of hexavalent chromium...
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