MODELING OF WATER QUALITY OF BINDARE STREAM IN ZARIA-NIGERIA USING MATLAB
MODELING OF WATER QUALITY OF BINDARE STREAM IN ZARIA-NIGERIA USING MATLAB
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Date
2011-10
Authors
SANNI, MOHAMMED ISMAILA
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Abstract
The objective of this study was to develop a MATLAB based simulation modeling using
SIMULINK tools that produced dissolved oxygen sag curve, and applied it to Bindare
stream in Zaria, Kaduna State-Nigeria, in order to assess the stream dissolved oxygen level
and its self-purification capacity as a mitigation measure in stream pollution control..
Laboratory test of selected water quality parameters which includes Dissolved Oxygen (DO),
Biochemical Oxygen Demand (BOD), pH, Total Dissolved Oxygen (TDS), alkalinity,
Electrical Conductivity (EC) and temperature was carried out in four sections of the stream
as stipulated by “Standard Method” along the 6 kilometer stream stretch. Results generated by
the model simulation included critical dissolved oxygen deficit Dc, critical time tc of travel
by the stream to attain Dc. The stream mean dissolved oxygen DO of 6.4mg/L was obtained
which was within the range Stipulated by APHA, AWWA, and WEF 1995. .Determination
Coefficient R2 (found to be 0.86) was applied to check correlation between simulated and
theoretical calculated results using Streeter-Phelps dissolved oxygen sag formula. It was
therefore concluded that the Dissolved Oxygen Sag generated using MATLAB Simulink is
a time saving calculation tool for DO studies, user friendly and can be applied to any
stream/river of known required input parameters.
Description
A THESIS SUBMITTED TO THE POSTGRAUDATE SCHOOL,
AHMADU BELLO UNIVERSITY, ZARIA
NIGERIA
IN PARTIAL FULFILMENT OF THE AWARD
OF MASTER OF SCIENCE IN WATER RESOURCES & ENVIRONMENTAL
ENGINNERING
DEPARTMENT OF WATER RESOURCES & ENVIRONMENTAL ENGINEERING
AHMADU BELLO UNIVERSITY, ZARIA
NIGERIA
October, 2011
Keywords
MODELING,, WATER QUALITY,, BINDARE,, STREAM,, ZARIA-NIGERIA