Case Study for: Impact of WWTP effluent on drains water quality in Egypt.

Document Type : Original Article

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Abstract

The stream sanitation and pollution control is dependent on natural self-
purification, the ability of the stream to assimilate wastes and restore its own
quality. The stream solvency in transit along its course reflected by the balance
of outgo and income dictated by four primary self-purification factors: 1)
stream runoff, 2) time of passage, 3) temperature and 4) reaeration. The
dissolved oxygen (DO) profile resulting from specific organic waste loading
has been considered as an indicator of the stream condition. In this work, an
analytical model has been used to predict the DO profile along to drains in
Egypt. The calculated DO shows a good agreement with those values obtained
from the field measurements.
Introduction:
One of the most critical problems today, which requires a quick solution, is
the failure of water to meet the required demands. This arose the need to
protect the available surface water sources from pollution.One major source of
surface water pollution is the discharging of raw or treated -sewage into the
surface water stream. The impact of pollution on the receiving water body is
manifold and dependent upon the type and concentration of the pollutants
(Nemerow and Dasgupta, 1991). The different pollutants, e.g. pathogens,
cusnended solids organic matter. algae. nitrate, salts, etc. have different
ERJ. Engineering Research Journal
Volume 23, Issue 1
January 2000
Pages 31-42

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