A Practical Study on the Development and Expansion of Arsenic Removal Equipment in Rural Areas of Bangladesh

在孟加拉国，很大一部分地下水含有天然来源的砷。然而，农村居民使用地下水饮用和烹饪，这占2008年2.4万至3.8万砷中毒患者的很大一部分。为了缓解这种情况，本研究项目使用当地可用的材料建造了一个砷和铁去除厂（AIRP）。该工厂使用砂过滤器可以去除砷。AIRP由当地可用的混凝土环制成，并通过砂过滤器过滤去除Fs-As群。对AIRP的性能进行了监测，并进行了示范性可行性研究，以评估其扩散的可能性。研究了AIRP扩散的经济可行性和影响，分析了用户的支付意愿。并对AIRP商业化的可能性进行了研究。

In Bangladesh, significant part of groundwater contains nature-derived arsenic. However, rural people are using ground water for drinking and cooking, which accounts for large number of arsenicosis patients of 24,000 to 38,000 in 2008. To mitigate this situation, an Arsenic and Iron Removal Plant (AIRP) was constructed in this research project using locally available materials. The plant uses a sand filter that can remove the arsenic. The AIRP is made with locally available concrete ring and removes Fs-As flock by filtration using sand filter. The performance of the AIRP was monitored and demonstrative feasibility study was carried to evaluate possibility of its diffusion. Economical feasibility and impact of AIRP diffusion, analysis of willingness to pay of users were studied. Possibility of commercialization of AIRP was also studied.