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Arsenic in the beng...
Arsenic in the bengal delta plain : Geochemical complications and potential mitigation option
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Chatterjee, D. (författare)
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Kundu, A. K. (författare)
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Barman, S. (författare)
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Biswas, U. (författare)
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Majumder, S. (författare)
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- Bhattacharya, Prosun, 1962- (författare)
- KTH,Hållbar utveckling, miljövetenskap och teknik
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(creator_code:org_t)
- 2016-06-09
- 2016
- Engelska.
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Ingår i: Arsenic Research and Global Sustainability - Proceedings of the 6th International Congress on Arsenic in the Environment, AS 2016. - : CRC Press/Balkema. - 9781138029415 ; , s. 47-49
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Groundwaters from the Bengal Delta Plain (BDP) are now significantly enriched with natural arsenic (As), frequently exceeding the WHO guideline value (10 μg/L). The contaminated ground-water is often derived from geologically young sediments (Holocene), low-lying areas and flat terrain where groundwater movement is slow (poorly flushed aquifers). The As content of the aquifer material is not regularly high (3–18 mg/kg), however, the groundwater As content is often exceptionally high (up to 3200 μg/L). The most notable feature of the tubewell groundwater is their predominantly reducing conditions at near-neutral pH values (6.5–7.5) with high redox sensitive species. The issue of deeper aquifer (safe and unsafe) is most challenging in terms of both geological and public health point of view. In this context, deeper aquifer is possibly the most reliable source where remediation technologies are in many cases incapable of yielding As-safe water.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
Nyckelord
- Aquifers
- Arsenic
- Groundwater
- Groundwater resources
- Hydrogeology
- Remediation
- Sustainable development
- Aquifer materials
- Bengal delta plains
- Contaminated ground
- Ground water movement
- Mitigation options
- Redox sensitives
- Reducing conditions
- Remediation technologies
- Groundwater pollution
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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