-
A performance evaluation and modification of the UNICEF upward-flow water filter
01.10.1993
The low-cost UNICEF household filter combined with a downflow polishing sand filter can substantially improve the quality of tropical surface waters.
01.10.1993
The low-cost UNICEF household filter combined with a downflow polishing sand filter can substantially improve the quality of tropical surface waters.
Practical Action Publishing Ltd, Company Reg. No. 1159018, England, VAT No. GB 880 9924 76 is the wholly owned publishing arm of Practical Action, Reg. Charity No. 247257, and trades only in support of its parent charity objectives
© 2024 Practical Action Publishing. All Rights Reserved.
powered by CloudPublish archived by CLOCKSS accessed via OpenAthens
PRACTICAL ACTION PUBLISHING
The Robbins Building
25 Albert Street
Rugby, CV21 2SD,
United Kingdom
Call us on +44(0)1926 634501
Email us at publishinginfo@practicalaction.org.uk