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首页> 外文会议>16th Annual technical conference and exposition of the American Filtration and Separations Society >NANO-STRUCTURED LANTHANUM-DIATOMACEOUS EARTH (DE)COMPOSITES FOR FILTRATION OF ARSENICFROM DRINKING WATER
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NANO-STRUCTURED LANTHANUM-DIATOMACEOUS EARTH (DE)COMPOSITES FOR FILTRATION OF ARSENICFROM DRINKING WATER

机译：纳米结构的镧-硬脂酸土（DE）复合物，用于过滤砷饮用水

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摘要

The lanthanum-Diatomaceous Earth (DE) adsorbent material has a demonstratedrnpotential for the removal and filtration of arsenic from drinking water. The process utilizes rapidrnadsorption of arsenic species onto nano-crystalline adsorbents coated onto the naturallyrnoccurring diatomaceous earth (DE) mineral. Laboratory scale as well as pilot-scale tests havernshown that the adsorption and filtration process is capable of reducing the arsenic level below 10rnppb. A pilot scale test conducted at a rate of 10-16 gallons per minute has shown that thernestimated cost to treat groundwater containing 60-100 ppb arsenic to meet the drinking waterrnstandard of 10 ppb is in the range of 40-50 cents per thousand gallons of water treated. Therncomposite adsorbent is capable of removing both arsenite and arsenate. The adsorbed arsenic isrnincorporated into the crystalline matrix of the adsorbent.
机译：镧硅藻土（DE）吸附材料具有从饮用水中去除和过滤砷的潜在潜力。该方法利用了砷物质在纳米晶吸附剂上的快速吸附，该吸附剂涂覆在自然生成的硅藻土（DE）矿物上。实验室规模和中试规模的测试表明，吸附和过滤过程能够将砷含量降低到10rnppb以下。以每分钟10-16加仑的速度进行的中试规模测试显示，处理含60-100 ppb砷的地下水以满足10 ppb饮用水标准的热处理成本约为每千加仑40-50美分水处理。复合吸附剂能够去除亚砷酸盐和砷酸盐。吸附的砷被掺入到吸附剂的晶体基质中。

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