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Development of Low-cost indigenous filtration system for urban sullage: assessment of reusability

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タイトル: Development of Low-cost indigenous filtration system for urban sullage: assessment of reusability
著者: Sikder, Tajuddin 著作を一覧する
Hossain, Zakir 著作を一覧する
Pingki, Priangka Bhattacharya 著作を一覧する
Biswas, Jussi Dayna 著作を一覧する
Rahman, Mostafizur 著作を一覧する
Hossain, Shakhaoat 著作を一覧する
Saito, Takeshi 著作を一覧する
Kurasaki, Masaaki 著作を一覧する
キーワード: Indigenous technology
Water pollution
Pollution remediation
Filtration
発行日: 2016年 5月 3日
出版者: Springer
誌名: Future Cities and Environment
巻: 2
号: 1
出版社 DOI: 10.1186/s40984-016-0018-y
抄録: Treated sullage water could be the answer to urban water scarcity. In this study, urban sullage water was subjected to various tests to determine a number of physiochemical parameters, heavy metal content and coliform count. Obtained results were compared with the Dhaka Water and Sewerage Authority (DWASA) water samples. The sullage water was then treated using a proposed filtration system with indigenous gravel-coal-sand filter. The pH, chlorine (Cl−) and phosphate (PO4 3−) of the sullage water, DWASA water and treated sullage water were found to be within the allowed limit set by Bangladesh Drinking Water Quality Standard. The nitrate (NO3 1−), BOD, DO, coliform and phosphate (PO4 3−) of the sullage water exceeded both the Bangladesh and WHO standard. The amount of toxic heavy metals, lead, cadmium, chromium, mercury and arsenic, were determined to be below the standards. The results indicated that sullage water is not safe and the treated one is safe from toxic heavy metals for household use. The significant portion of treated water can be reutilized which is equivalent of 29 % savings from the annual DWASA water bill. The quality of the treated sullage water revealed that it can be reused for cleaning, washing, bathing in household activities along with other agricultural and industrial purposes.
資料タイプ: article
URI: http://hdl.handle.net/2115/65153
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 藏崎 正明

 

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