eprintid: 1332297
rev_number: 48
eprint_status: archive
userid: 608
dir: disk0/01/33/22/97
datestamp: 2011-11-30 15:23:17
lastmod: 2021-09-19 23:44:29
status_changed: 2014-03-19 11:43:49
type: article
metadata_visibility: show
item_issues_count: 0
creators_name: Adler, I
creators_name: Campos, LC
creators_name: Hudson-Edwards, KA
title: Converting rain into drinking water: Quality issues and technological advances
ispublished: pub
divisions: UCL
divisions: B04
divisions: C05
divisions: F44
divisions: C06
note: © IWA Publishing 2011. The definitive peer-reviewed and edited version of this article is published in Water Science & Technology: Water Supply Vol 11 No 6 pp 659–667 (2011) (doi:10.2166/ws.2011.117) and is available at www.iwapublishing.com.
abstract: With growing pressures on water supplies worldwide, rainwater harvesting is increasingly seen as a viable option to provide drinking water to an ever expanding population, particularly in developing countries. However, rooftop runoff is not without quality issues. Microbiological and chemical contamination have been detected in several studies, well above local and international guidelines, posing a health risk for consumers. Our research explores the use of silver ions, combined with conventional filtration and settling mechanisms, as a safe and affordable model for purification that can be applied on a small scale. The complete systems were installed and tested in rural communities in a Mexican semi-arid region. Efficiencies up to 99.9% were achieved in the removal of indicator microorganisms, with a marked exception where cross-contamination from external seepage occurs. Sites without overhanging branches or with relatively clean surfaces show an absence of total coliforms in the untreated runoff, compared with others where values as high as 1,650 CFU/100 ml were recorded. Thus, given adequate maintenance, the system can successfully deliver high quality drinking water, even when storage is required for long periods of time. © IWA Publishing 2011.
date: 2011
official_url: http://dx.doi.org/10.2166/ws.2011.117
vfaculties: VENG
vfaculties: VMPS
oa_status: green
full_text_type: other
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_source: Scopus
elements_id: 353341
doi: 10.2166/ws.2011.117
lyricists_name: Adler, Ilan
lyricists_name: Campos, Luiza
lyricists_name: Hudson-Edwards, Karen
lyricists_id: IJADL48
lyricists_id: LCCAM91
lyricists_id: KAHUD91
full_text_status: public
publication: Water Science and Technology: Water Supply
volume: 11
number: 6
pagerange: 659 - 667
issn: 1606-9749
citation:        Adler, I;    Campos, LC;    Hudson-Edwards, KA;      (2011)    Converting rain into drinking water: Quality issues and technological advances.                   Water Science and Technology: Water Supply , 11  (6)   659 - 667.    10.2166/ws.2011.117 <https://doi.org/10.2166/ws.2011.117>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/1332297/1/Adler_Watersupply2011_revision_TEMPLATE.pdf