文档介绍：ICRQFIGWE
REFERENCE
LIBRARY
A project of Volunteers in Asia
ater Treqtment and mitation: Simple Methods
for Rurureas
by: H-T. Mann and D. Williamson
Published by:
Intermediate Technoiogy Publications, Ltd.
9 King Street
London WC2E 8HN
United Kingdom
Papqr copies are British pounds.
Available from:
Intermediate Technology Publications, Ltd.
9 King Street '
London WC2E 8HN
United Kingdom-
Reproduced by permission of Intermediate
Technology Publications, Ltd.
Reproduction of this microfiche document in any
form is subje+ to the same restrictions as those
of the original document.
1:; The printing of this publication has been made possible by a grant
t:i
,r;‘”’ from the priest and people of Our Lady and St. Oswin’s . parish,
I’ Tynemouth, England. The Intermediate Technology Development
1s
Group gratefully acknowledges their generosity. I
Water Treatment
and Sanitation
A handbook of simple methods for
rural areas in developing countries
by
. MANN
D. WILLIAMSON
.. *
First printad June 1973
Revised edition January 1976
f
8 Intermediate Technology Publications
!
I i London WCZE 8HN
i ISBN 0 90303123 X
Preface
With the publication of this second edition of Water Treatment and Sanitation
the Intermediate Technology Development Group take-- a further step in the in+
plementation of its primary purpose - that is, to fill the “knowledge gap” which
still exists from the point of view of munities and their he!pers, who must
resort to simple and cheap methods to fulfil their basic needs.
Few needs are more basic than those of good water and proper sanitation. The
importance of these facilities to health needs no emphasis; equally great is their
importance to the development of self-respect and the spirit of self-reliance.
When es to water supplies and waste disposal, the rural areas of most
developing countries show wides