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Prof. Brij Bhushan Tewari

 

Prof. Brij Bhushan Tewari

University of Guyana
Guyana

Abstract Title:FERRATE (VI) TECHNOLOGY IN WATER AND WASTEWATER TREATMENT

Biography:

Dr. Brij Bhushan Tewari is a Professor of Chemistry in the Department of Chemistry at University of Guyana. Prof. Tewari obtained his Doctor of Philosophy degree in Sciences (Chemistry) from Allahabad University and Doctor of Medicine degree from Texila American University. He has taken teaching/research appointments at several universities in Asia, Europe, USA, Canada and Guyana. His major research interests are in the area of (i) Metal complexes in biology and medicine (ii) Astrobiology & chemical evolution and origins of life (iii) Environment, Microbiology and Agriculture. He has published 141 research papers in an international journal, 01 book ,12 book chapters and 167 conferences and seminars.

Research Interest:

Present research work determines the potential of metal ferrates for treating water and wastewater from different regions of Demerara and Berbice counties in Guyana. Chlorination is one of the methods used to treat water in Guyana, but when it comes into contact with organic material it forms carcinogenic substances also anthrax and cryptosporidium resist chlorination for this reason ferrate is analyzed as an alternative to chlorination. Metal ferrates as a treatment option is advantageous over currently used treatment method because of its oxidizing, coagulant, flocculent, disinfectant properties [1]. Potassium, barium, cesium and magnesium ferrates were synthesized and characterized by spectral studies. The tap water samples were obtained from Berbice. The surface water samples were collected from the University of Guyana pond. The wastewater samples were collected from the effluent of Banks DIH Ltd. and Bosai Mining Company in Guyana. The water quality parameters used to examine water quality pre and post treatment were turbidity, pH, alkalinity (waste hardness) chloride content, iron content, color and microbiological study of Escherichia coli and Coliform. Pre and post treatment parameters were useful to determine treatment potential of synthesized ferrates. Potassium and magnesium ferrates were found to have highest and lowest treatment potential in comparison to other ferrate studies. Keywords: Ferrate (VI) technology, Green chemical, Water and wastewater treatment.