Arsenic removal through bio sand filter using different bio-adsorbents

Journal of Water and Land Development

article

Ghulam S. Keerio¹  Hareef A. Keerio²  Khalil A. Ibuphoto³  Mahmood Laghari¹  Sallahuddin Panhwar⁴  Mashooque A. Talpur⁵ 

[1] Sindh Agriculture University, Department of Energy and Environment;Hanyang University, Department of Civil and Environmental Engineering;Sindh Agriculture University, Department of Farm Structures;Mehran University of Engineering and Technology, US-Pakistan Centers for Advanced Studies in Water;Sindh Agriculture University, Department of Irrigation and Drainage

关键词: arsenic;    banana peel;    bio-adsorbent;    bio-sand filter;    biochar;    rice-husk;    water treatment;   

DOI  :  10.24425/jwld.2021.136141

学科分类：农业科学（综合）

来源: Instytut Technologiczno-Przyrodniczego / Institute of Technology and Life Sciences

【 摘 要 】

Arsenic is one of the most harmful pollutants in groundwater. In this paper, the Nepali bio sand filter (BSF) was modi-fied with different bio-adsorbents, and proved to be an efficient method for arsenic removal from groundwater. Three dif-ferent bio-adsorbents were used to modify the Nepali BSF. Iron nails and biochar BSF, ~96% and ~93% arsenic removal was achieved, within the range of WHO guidelines. In iron nails, BSF and biochar BSF ~15 dm3∙h–1 arsenic content water was treated. In the other two BSFs, rice-husk and banana peel were used, the arsenic removal efficiency was ~83% of both BSFs. Furthermore, the efficiency of rice-husk and banana peel BSFs can be increased by increasing the surface area of the adsorbent or by reducing the flow rate.

【 授权许可】

Unknown