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ISSN: 2157-7587

Hydrology: Current Research
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  • Research Article   
  • Hydrol Current Res 2011, Vol 2(2): 114
  • DOI: 10.4172/2157-7587.1000114

Alum Treated Grey Water for Toilet Flushing, Mopping and Laundry Work

Joseph B. Skudi*, Ruth Wanjau, Jane Murungi and C.O.Onindo
Department of Chemistry in the School of Pure and Applied Sciences, Kenyatta University, P.O.BOX 43822-00100, Nairobi, Kenya
*Corresponding Author : Joseph B. Skudi, Department of Chemistry in the School of Pure and Applied Sciences, Kenyatta University, P.O.Box 43822-00100, Nairobi, Kenya, Email: [email protected]

Received Date: Feb 10, 2011 / Accepted Date: May 03, 2011 / Published Date: May 28, 2011

Abstract

The paper presents the study carried out in a peri urban settlement of Nairobi Kenya and involved treatment of raw grey water generated from bathroom, kitchen and laundry for flushing toilet and laundry work. The study utilized both chemical and physical treatment. The chemical treatment involved alum addition in the raw grey water and pH adjustment using bicarbonate salts. The physical treatment involved filtration using Quartz sand and filtration of pH adjusted treated grey water using filter paper. The major ions studied were ions which could interfere with lathering of soaps or could cause stains on clothes and toilet fixtures or could be potentially health hazardous. These ions were Fe, Mn, Ca, Mg, Pb and Hg. The levels of these ions in raw grey water and in treated grey water were determined using atomic absorption spectroscopy. The results for the levels of these ions before treatment were compared to the set standards for potable water by Kenya Bureau of Standards [1]. The levels of these ions in the treated grey water after adjusting the pH were found to be within the Maximum Contaminant Limits (MCL) set by KEBS [1]. Thus the overall treatment of the raw grey water produced water of good quality which complied with the set standards for potable water by KEBS [1]. The results of this treatment could contribute immensely in the fulfillment of the millennium development goals.

Keywords: Chemical treatment; Physical treatment; Grey water reuse; Quality; Sand filtration; pH adjustment

Citation: Skudi JB, Wanjau R, Murungi J, Onindo CO (2011) Alum Treated Grey Water for Toilet Flushing, Mopping and Laundry Work. Hydrol Current Res 2: 114. Doi: 10.4172/2157-7587.1000114

Copyright: © 2011 Skudi JB, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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