NATURAL ARSENIC IN GROUNDWATER: OCCURRENCE, REMEDIATION AND MANAGEMENT - CHAPTER 5 doc

... 83.668 2 45. 0 6.97 Ϫ0.1 25 444 1.9 bdl 0 .5 91.1 1.3 10.2 35. 5 20.2 0.1 19.0 15. 5 81 .57 0.23 0.18 N- 15 27 .53 5 83.7 15 19.8 6.61 Ϫ0.147 50 8 10 .5 0.4 3.1 34 .5 1.8 25. 7 117.6 22.7 2 .5 153 .9 151 .4 98. 35 1.94 ... 42.0 0.4 59 .6 30.6 155 .5 49.4 147.0 25. 6 0.0 3.1 3.0 95. 83 0. 35 1 .55 N-8 27 .54 2 83.6 95 18.3 6.62 Ϫ0.136 50 5 9.2 bdl bdl 60.7 2.2 41.1 66.2 25. 5 2....

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... 5. 30 0 .56 2.00 1.92 1.88 2. 65 0.08 0.12 18 0.46 17.8 48.74 14.86 14. 85 1.13 5. 36 1.14 1. 05 3.26 0.22 0. 15 80 1.49 20 .5 70.03 11. 95 4.88 0.67 1.74 2.43 1.90 2.39 0.09 0.14 15 0.44 21 .5 62. 15 15. 96 ... 0.069 24 .5 3 .50 0.099 24.8 3 .54 0.216 25. 1 3.64 Leaching does not occur 25. 8 0.74 Leaching does not occur 28.2 63.1* Leaching does not occur 33.7 109 0.0 85 35. 9...

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... immobilization by 73 -7 5 -7 0 -6 5 -6 0 -5 5 -5 0 -1 1 -7 δ 2 Η ‰ δ 18 Ο ‰ -1 0 -9 -8 y = 7.97x + 11.03 Figure 5. ␦ 18 O vs. ␦ 2 H for Tlama well waters plotted with LMWL-Mexico City. Copyright © 20 05 Taylor & ... system, (2) to investigate the source(s) of 67 Natural Arsenic in Groundwater: Occurrence, Remediation and Management...

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... composition the water characterization in the aquifer of the study area fit into the three main types, viz. Na-(K)-Cl-SO 4 , Ca-(Mg)-Na-(K)-SO 4 and Ca-(Mg)-Na-(K)-HCO 3 das reported by the earlier ... levels of arsenic were obtained in the soils collected 85 Natural Arsenic in Groundwater: Occurrence, Remediation and Management – Bundschuh, Bhattacharya and Chan...

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... of this technology in field conditions (Table 4). 277 0 4 8 12 16 20 24 28 051 0 15 20 25 30 35 40 45 50 55 Flow Rate (Lph) Final As conc. (µg/L) WHO / EPA Drinking Water Limit Initial As conc. ... water and quality conform to the drinking water standards for arsenic and iron. 1 INTRODUCTION An alarmingly large population of India and Bangladesh, 66 million in the Gangetic...

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... 2002). 2 ARSENIC AFFECTED FLOOD-DELTA PLAINS IN WEST BENGAL Pandemic arsenic contamination in the Bengal Basin is essentially confined to the low-lying Ganga-Brahmaputra flood-delta plain located ... Jharkhand and eastern Uttar Pradesh (UP; Fig. 1). The upper permissible limit of arsenic in potable water is set at 50 ␮g/L in 17 Natural Arsenic in Groundwater: Occurre...

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... local drinking water standard of 50 ␮g/L. The first symptoms of arsenic related diseases were detected in 1983 within the counties of La Banda and Robles, and in the fol- lowing year investigations ... pat- terns and remediation with natural materials. Master Thesis, Dept. of Land and Wat. Res. Eng., KTH, Stockholm, Sweden, TRITA-LWR-EX-0 3-0 5, 59 p. Martin, A. 1999. H...

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... 95 Natural Arsenic in Groundwater: Occurrence, Remediation and Management – Bundschuh, Bhattacharya and Chandrasekharam (eds) © 20 05, Taylor & Francis Group, London, ISBN 04 153 6 700 X Arsenic ... possible contamination from arsenic through the food chain. In Groundwater Arsenic Contamination in the Bengal Delta Plains of Bangladesh (Proceedings of the KTH-...

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... release in soil (F for As in algae 13. 054 ** and for days of incubation 10 .56 9**, LSD (0. 95) being 5. 96). A large fraction of this recycled As is not likely to be washed out by flood or rainwater in ... reported in the top layer of soils (Huq et al. 2001). The increased As content after 30 d 122 0 10 20 30 40 50 60 70 0 2 .5 12 .5 25. 0 50 .0 Arsenic applied in water...

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... Settling of As-rich smelter particulates, wind dispersion of solid tailings, and leachate run- off from tailings has contaminated soils around smelters and tailings. In addition, natural subsur- face ... Zimapán inhabitants. 6 CONCLUSIONS Arsenic is widely distributed in Zimapán. Mining wastes and natural arsenic- bearing mineraliza- tion release As to water, soils and plan...

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