Application of natural citric acid sources and their role on arsenic removal from drinking water: A green chemistry approach
Authors: Majumder, S., Nath, B., Sarkar, S., Islam, S.M., Bundschuh, J., Chatterjee, D. and Hidalgo, M.
Journal: Journal of Hazardous Materials
Volume: 262
Pages: 1167-1175
eISSN: 1873-3336
ISSN: 0304-3894
DOI: 10.1016/j.jhazmat.2012.09.007
Abstract:Solar Oxidation and Removal of Arsenic (SORAS) is a low-cost non-hazardous technique for the removal of arsenic (As) from groundwater. In this study, we tested the efficiency of natural citric acid sources extracted from tomato, lemon and lime to promote SORAS for As removal at the household level. The experiment was conducted in the laboratory using both synthetic solutions and natural groundwater samples collected from As-polluted areas in West Bengal. The role of As/Fe molar ratios and citrate doses on As removal efficiency were checked in synthetic samples. The results demonstrate that tomato juice (as citric acid) was more efficient to remove As from both synthetic (percentage of removal: 78-98%) and natural groundwater (90-97%) samples compared to lemon (61-83% and 79-85%, respectively) and lime (39-69% and 63-70%, respectively) juices. The As/Fe molar ratio and the citrate dose showed an 'optimized central tendency' on As removal. Anti-oxidants, e.g. 'hydroxycinnamates', found in tomato, were shown to have a higher capacity to catalyze SORAS photochemical reactions compared to 'flavanones' found in lemon or lime. The application of this method has several advantages, such as eco- and user- friendliness and affordability at the household level compared to other low-cost techniques. © 2012 Elsevier B.V.
Source: Scopus
Application of natural citric acid sources and their role on arsenic removal from drinking water: a green chemistry approach.
Authors: Majumder, S., Nath, B., Sarkar, S., Islam, S.M., Bundschuh, J., Chatterjee, D. and Hidalgo, M.
Journal: J Hazard Mater
Volume: 262
Pages: 1167-1175
eISSN: 1873-3336
DOI: 10.1016/j.jhazmat.2012.09.007
Abstract:Solar Oxidation and Removal of Arsenic (SORAS) is a low-cost non-hazardous technique for the removal of arsenic (As) from groundwater. In this study, we tested the efficiency of natural citric acid sources extracted from tomato, lemon and lime to promote SORAS for As removal at the household level. The experiment was conducted in the laboratory using both synthetic solutions and natural groundwater samples collected from As-polluted areas in West Bengal. The role of As/Fe molar ratios and citrate doses on As removal efficiency were checked in synthetic samples. The results demonstrate that tomato juice (as citric acid) was more efficient to remove As from both synthetic (percentage of removal: 78-98%) and natural groundwater (90-97%) samples compared to lemon (61-83% and 79-85%, respectively) and lime (39-69% and 63-70%, respectively) juices. The As/Fe molar ratio and the citrate dose showed an 'optimized central tendency' on As removal. Anti-oxidants, e.g. 'hydroxycinnamates', found in tomato, were shown to have a higher capacity to catalyze SORAS photochemical reactions compared to 'flavanones' found in lemon or lime. The application of this method has several advantages, such as eco- and user- friendliness and affordability at the household level compared to other low-cost techniques.
Source: PubMed
Application of natural citric acid sources and their role on arsenic removal from drinking water: A green chemistry approach
Authors: Majumder, S., Nath, B., Sarkar, S., Islam, S.M., Bundschuh, J., Chatterjee, D. and Hidalgo, M.
Journal: JOURNAL OF HAZARDOUS MATERIALS
Volume: 262
Pages: 1167-1175
eISSN: 1873-3336
ISSN: 0304-3894
DOI: 10.1016/j.jhazmat.2012.09.007
Source: Web of Science (Lite)
Application of natural citric acid sources and their role on arsenic removal from drinking water: a green chemistry approach.
Authors: Majumder, S., Nath, B., Sarkar, S., Islam, S.M., Bundschuh, J., Chatterjee, D. and Hidalgo, M.
Journal: Journal of hazardous materials
Volume: 262
Pages: 1167-1175
eISSN: 1873-3336
ISSN: 0304-3894
DOI: 10.1016/j.jhazmat.2012.09.007
Abstract:Solar Oxidation and Removal of Arsenic (SORAS) is a low-cost non-hazardous technique for the removal of arsenic (As) from groundwater. In this study, we tested the efficiency of natural citric acid sources extracted from tomato, lemon and lime to promote SORAS for As removal at the household level. The experiment was conducted in the laboratory using both synthetic solutions and natural groundwater samples collected from As-polluted areas in West Bengal. The role of As/Fe molar ratios and citrate doses on As removal efficiency were checked in synthetic samples. The results demonstrate that tomato juice (as citric acid) was more efficient to remove As from both synthetic (percentage of removal: 78-98%) and natural groundwater (90-97%) samples compared to lemon (61-83% and 79-85%, respectively) and lime (39-69% and 63-70%, respectively) juices. The As/Fe molar ratio and the citrate dose showed an 'optimized central tendency' on As removal. Anti-oxidants, e.g. 'hydroxycinnamates', found in tomato, were shown to have a higher capacity to catalyze SORAS photochemical reactions compared to 'flavanones' found in lemon or lime. The application of this method has several advantages, such as eco- and user- friendliness and affordability at the household level compared to other low-cost techniques.
Source: Europe PubMed Central