A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Simultaneous Removal of Arsenic and Nitrate in Anaerobic Batch Reactors
Abstract Arsenic contamination of drinking water is a severe problem around the world. Arsenic consumptions in low or high concentrations either through contaminated drinking water or food may cause arsenicosis in humans. Nitrate is often found as co-contaminant with arsenic in groundwater of many rural and urban areas throughout the world. This project investigates the simultaneous removal of arsenic and nitrate by means of terminal electron-accepting process (TEAP) in suspended growth batch bioreactors. Arsenic and nitrate were effectively removed in batch reactors from an initial concentration of 550 µg/L and 150 mg/L, respectively and comply with the WHO as well as BIS guidelines for drinking water. Mineralogical analyses using field emission scanning electron microscopy (FESEM) and energy-dispersive X-ray spectroscopy (EDS) analyses indicated that biogenic arsenic sulfide mineral phases are the likely mechanisms for arsenic removal in the bioreactors.
Simultaneous Removal of Arsenic and Nitrate in Anaerobic Batch Reactors
Abstract Arsenic contamination of drinking water is a severe problem around the world. Arsenic consumptions in low or high concentrations either through contaminated drinking water or food may cause arsenicosis in humans. Nitrate is often found as co-contaminant with arsenic in groundwater of many rural and urban areas throughout the world. This project investigates the simultaneous removal of arsenic and nitrate by means of terminal electron-accepting process (TEAP) in suspended growth batch bioreactors. Arsenic and nitrate were effectively removed in batch reactors from an initial concentration of 550 µg/L and 150 mg/L, respectively and comply with the WHO as well as BIS guidelines for drinking water. Mineralogical analyses using field emission scanning electron microscopy (FESEM) and energy-dispersive X-ray spectroscopy (EDS) analyses indicated that biogenic arsenic sulfide mineral phases are the likely mechanisms for arsenic removal in the bioreactors.
Simultaneous Removal of Arsenic and Nitrate in Anaerobic Batch Reactors
Shakya, A. K. (author) / Ghosh, P. K. (author)
2018-01-01
9 pages
Article/Chapter (Book)
Electronic Resource
English
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