International Science Community Association Research Journal of Chemical Sciences 2231-606X 12 1 2022 02 18 Decolorization of acid orange 8 from textile effluent using alkaline OsO4/Chloramine-B solutions: Optimization and kinetic study 48 57 EN I.A. Ajayi 1 Industrial Unit, Chemistry Department, Faculty of Science, University of Ibadan, Nigeria O.B. Omolere 2 Industrial Unit, Chemistry Department, Faculty of Science, University of Ibadan, Nigeria Pachouri Manoj Kumar 1 Applied Science Department, Anand Engineering College, Keetham, Agra, 282007, India Mittal Pankaj 2 Applied Science Department, Anand Engineering College, Keetham, Agra, 282007, India Upadhyay Monika 1 Department of chemistry, University of Rajasthan, Jaipur 302004, India Singh R.V. 2 Department of chemistry, University of Rajasthan, Jaipur 302004, India Fahmi Nighat 3 Department of chemistry, University of Rajasthan, Jaipur 302004, India Sharma Asmita 1 Dept. of Chemistry, Shri Vaishnav Vidyapeeth Vishwavidyalaya, Indore, MP, India Sharma Rajesh 2 Devi Ahilya Vishwavidyalaya, Takshshila Campus, Khandwa Road, Indore, MP, India Mohammed Aliyu D. 1 Department of Chemistry, Umaru Musa Yar’adua University, PMB 2218, Katsina, Katsina state, Nigeria Abubakar Maryam Dodo 2 Department of Chemistry, Umaru Musa Yar’adua University, PMB 2218, Katsina, Katsina state, Nigeria Rathore Monika 1 Analytical Laboratory, Chemistry Department, Jai Narain Vyas University, Jodhpur, Rajasthan, India Singh Ishwar 2 Analytical Laboratory, Chemistry Department, Jai Narain Vyas University, Jodhpur, Rajasthan, India Bhati Punam Singh 3 Analytical Laboratory, Chemistry Department, Jai Narain Vyas University, Jodhpur, Rajasthan, India Nagar Sarika 4 Analytical Laboratory, Chemistry Department, Jai Narain Vyas University, Jodhpur, Rajasthan, India A.A. Siaka 1 Department of Applied Chemistry Federal University Dutsin-Ma Katsina State, Nigeria A. Ismail 2 Department of Applied Chemistry Federal University Dutsin-Ma Katsina State, Nigeria Somashekar Manjunatha A. 1 Department of Chemistry, Don Bosco Institute of Technology (Affiliated to Visvesvaraya Technological University - Belagavi), Mysore Road, Bengaluru 560 074, India Sukhdev Anu 2 Department of Chemistry, Presidency University, Bengaluru-560 064, India . Puttaswamy 3 Department of Chemistry, Jnanabharati Campus, Bangalore University, Bangalore-560 056, India T.S. Shashidhara 4 Department of Physics, Siddaganga College of Arts, Science and Commerce, Tumakuru, 572102, India > Research Paper 2021 5 12 2022 02 18 The detoxification of dye effluents produced by the fabric industries is the key challenge in waste water treatment.. The oxidation process developed in the present studies shows many benefits viz., simple, low cost, mild experimental conditions, reduced reaction time, and environmental benevolence. Mono azo dye, acid orange 8 (AO 8) was used as model to explore the feasibility of using chloramine-B (CAB) with osmium tetroxide (OsO4) as a homogeneous catalyst in the practical decolorization of dye in waste water. The influence of process parameters such as dye concentration, CAB concentration, OsO4 concentration, alkali concentration and temperature was examined. The relative reactivity studies with other platinum group metal ions shows that OsO4 is an effective catalyst in the present redox system. The suggested oxidation process has appreciably reduced the Chemical Oxygen Demand (COD). The treated dye was less toxic and it was verified by phytotoxicity analysis. Importantly, this method can be expediently scaled up for industrial applications with appropriate adaptations to minimize the toxicity present in industrial effluents. Copyright@ International Science Community Association