Newsletter and Technical Publications
<International Source Book On Environmentally Sound Technologies
for Wastewater and Stormwater Management>
How to use this book
This book is intended to be used in a number of ways by using information
from a combination of sections or sub-sections. To gain an appreciation of the
problem of sanitation, Section 1 and Appendix 1 provide a broad overview. This
information may be what community leaders need to appreciate to consult with
community members on priority to be given to wastewater and stormwater
management. For a professional who wishes to familiarise with major technology
options in sewerage, Section 2 (3) provides this overview. This can be combined
with relevant sections in the Regional Overviews (Section 3 (2)). On the other
hand an urban manager in a South American city may want to read the whole of the
South American Regional Overview, and Section 2 (3) if low cost sewerage is
being considered. If further information is required the list of information
sources at the end of the Regional Overview can be consulted.
The Training Materials produced with the Source Book cater to three levels of
decision-making (see above under Purpose and Intended Audience)
The Source Book, as compared to a technical manual
The Source Book is not intended to be a technical manual. It does not provide
technical details or design procedures. Many excellent technical manuals and
handbooks are available. This Source Book lists some of these in the Lists of
References. Furthermore the Information Sources listed at the end of each
Regional Overview can provide further information (e.g. Professional
Associations). Similarly the Source Book does not provide detailed costs for the
technologies or cost-benefit analysis for each technology option. Such analyses
should be done in the context of a particular local application.
The Source Book, however, provides a broad overview of technology options,
which can achieve protection of public health and the environment. Furthermore
it points to practices that can be environmentally and financially sustainable.
These are because resources in the wastewater and stormwater are recycled rather
than disposed, and that the technology is acceptable and affordable to the
community it serves.
Note on the coverage of stormwater management: Wastewater and stormwater are
inevitably intertwined, because wastewater may be disposed into stormwater
drainage, wastewater and stormwater may be collected in the same sewer, and
inevitably there is cross-connections even when wastewater and stormwater are
separately collected. The treatment principles for stormwater are similar to
those for wastewater. The subject of stormwater management is in itself very
wide ranging, from estimating run-off from rainfall or storm events to control
of flooding. Coverage of stormwater management in the Source Book has been
confined to stormwater generated on-site and where stormwater and wastewater are
collected or treated together. Basin wide stormwater management and control of
flooding (stormwater diversion canals, floodgates) are not specifically covered.
Nonetheless if the same technologies presented in this Source Book for
stormwater collection, treatment, reuse and disposal are applied on a river
basin wide basis, then significant contribution to preventing flooding will be
achieved.
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