Author
Bibhash Nath
Other affiliations: Kalyani Government Engineering College, Jadavpur University, University of Sydney ...read more
Bio: Bibhash Nath is an academic researcher from City University of New York. The author has contributed to research in topics: Groundwater & Aquifer. The author has an hindex of 31, co-authored 79 publications receiving 2523 citations. Previous affiliations of Bibhash Nath include Kalyani Government Engineering College & Jadavpur University.
Papers published on a yearly basis
Papers
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TL;DR: It is still urgent to develop technologies and methods capable of monitoring and removing both of these contaminants simultaneously from drinking water, with a particular focus towards small-scale rural operations.
198 citations
TL;DR: In this article, the authors used a 1D reactive transport model (PHREEQC) to model the transport of the enrichment plume of the Ganges Delta using geophysical and geochemical methods, and showed that groundwater is in chemical equilibrium with siderite and calcite.
158 citations
TL;DR: The review of the available literature demonstrates the necessity of more rigorous studies in evaluating pathways of As exposure through the human food chain in Latin America.
151 citations
TL;DR: The result demonstrates that Fe(II)-Fe(III) cycling is the dominant process for the release of As from aquifer sediments to groundwater (and vice versa), which is mainly controlled by the local biogeochemical conditions.
117 citations
TL;DR: The results indicate that despite close similarity in major ion composition, the redox condition is markedly different in groundwater of the two studied aquifers, which warrants rigorous assessment of attendant health risk for Mn prior to considering mass scale exploitation of the BSA for possible sustainable drinking water supply.
112 citations
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1,571 citations
TL;DR: It is shown that anaerobic metal-reducing bacteria can play a key role in the mobilization of arsenic in sediments collected from a contaminated aquifer in West Bengal and that, for the sediments in this study, arsenic release took place after Fe(iii) reduction, rather than occurring simultaneously.
Abstract: The contamination of ground waters, abstracted for drinking and irrigation, by sediment-derived arsenic threatens the health of tens of millions of people worldwide, most notably in Bangladesh and West Bengal1,2,3. Despite the calamitous effects on human health arising from the extensive use of arsenic-enriched ground waters in these regions, the mechanisms of arsenic release from sediments remain poorly characterized and are topics of intense international debate4,5,6,7,8. We use a microscosm-based approach to investigate these mechanisms: techniques of microbiology and molecular ecology are used in combination with aqueous and solid phase speciation analysis of arsenic. Here we show that anaerobic metal-reducing bacteria can play a key role in the mobilization of arsenic in sediments collected from a contaminated aquifer in West Bengal. We also show that, for the sediments in this study, arsenic release took place after Fe(iii) reduction, rather than occurring simultaneously. Identification of the critical factors controlling the biogeochemical cycling of arsenic is one important contribution to fully informing the development of effective strategies to manage these and other similar arsenic-rich ground waters worldwide.
1,153 citations
TL;DR: A review of the state of the art in sea intrusion research can be found in this article, where the authors subdivide SI research into three categories: process, mea- surement, prediction and management.
1,055 citations
TL;DR: In this article, the transport of arsenic and key reactants such as organic carbon that could trigger release in zones with presently low groundwater arsenic levels is investigated in rural areas throughout the major river basins draining the Himalayas.
Abstract: Over the past few decades, groundwater wells installed in rural areas throughout the major river basins draining the Himalayas have become the main source of drinking water for tens of millions of people Groundwater in this region is much less likely to contain microbial pathogens than surface water but often contains hazardous amounts of arsenic--a known carcinogen Arsenic enters groundwater naturally from rocks and sediment by coupled biogeochemical and hydrologic processes, some of which are presently affected by human activity Mitigation of the resulting health crisis in South and Southeast Asia requires an understanding of the transport of arsenic and key reactants such as organic carbon that could trigger release in zones with presently low groundwater arsenic levels
967 citations
TL;DR: An attempt has been made in this paper to review As contamination, its effect on human health and various conventional and advance technologies which are being used for the removal of As from soil and water.
851 citations