Sewage: Some Problems And Solutions
Author(s)
A.T. Willimas
Abstract
Sewage sources are varied and sewage may be discharged from long sea
outfalls, sewage treatment plants, combined sewer overflows (CSO's), fly
tipping, shipping, etc. The question of malfunctioning and badly designed
CSO's is probably the biggest sewage problem for the 21*' Century. Removal
of the dissolved/suspended pollutants allowing discharge of substantially
clear water from sewage treatment plants (preliminary, primary, secondary
and tertiary treatments) into the sea or rivers, is the usual solution, but
incineration - which has long lead in times, and recycling are among factors
to be considered. Sewage works were designed as plants for the removal of
solids and organic matter from sewage and never to remove pathogenic
bacteria. EC legislation will mean that sewage discharges f
Keywords
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