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首页> 外文会议>International Congress on Arsenic in the Environment >Groundwater-sediment sorption mechanisms and role of organic matter in controlling arsenic release into aquifer sediments of Murshidabad area (Bengal basin), India
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Groundwater-sediment sorption mechanisms and role of organic matter in controlling arsenic release into aquifer sediments of Murshidabad area (Bengal basin), India

机译：地下水沉积物吸附机制及有机物在杂草中杂交中的含水层沉积物（孟加拉盆地）（孟加拉盆地）

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The current study attempts to delineate the role of dissolved organic matter in the release of sediment-bound arsenic from shallow aquifer sediments in the Bengal basin. Water samples and sediment cores were collected from 4 sites along the east and west banks of the river Bhagirathi (Nabagram and Kandi: low As, western part; Beldanga and Hariharpara: high As, eastern part). Fluorescence components were of three types: Humic like (A&C), Protein or Tyrosine Like (B) or Tryptophan protein or Phenol like (T). DOM characterization indicated that microbial proteins (Tyrosine (B) and Tryptophan (T)) are dominant in the low As areas, while humic DOM (A and C) were more prevalent in the high As groundwaters. Cl/Br molar ratio of high As wells were low compared to low As wells. The results imply that OM classification plays a vital role in releasing arsenic from aquifer sediments to shallow groundwaters in the Bengal basin.
机译：目前的研究试图描绘溶解有机物在孟加拉盆地浅层含水层沉积物中沉积物结合砷中的作用。从Bhagirathi River Bhagirathi（Nabagram和Kandi）的东部和西岸（Nabagram和Kandi）的4个地点收集了水样和沉积物核心; Beldanga和Hariharpara：高于东部，东部部分）。荧光组分为三种类型：腐殖样（A＆C），蛋白质或酪氨酸，如（B）或色氨酸蛋白或苯酚（T）。 DOM表征表明，微生物蛋白（酪氨酸（B）和色氨酸（T））在低至区域中占优势，而腐殖区Dom（A和C）在高度作为地下水中更为普遍。与钻井相比，Cl / Br摩尔比为低，低于孔。结果意味着OM分类在孟加拉盆地的浅层地下释放到含水层沉积物中的植物中发挥着至关重要的作用。

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