PERT MATHEMATICAL MODEL DEVELOPMENT FOR THE SUPPLY OF DOMESTIC WELL-WATER TREATMENT PLANT

Matthew O Arowolo,A Ezekiel Fadiji,Adefemi A Adekunle

doi:10.33003/fjs-2020-0402-238

Abstract

In Nigeria most cities are water stressed, none of the cities are having regular water supply. Quality water for human consumption is a primary duty of the government but they have failed. Also, current cost of boreholes installation has increased beyond their capacity due to Naira devaluation in the world market. Water resources management requires constant monitoring in terms of its qualitative-quantitative values. This study presents potential impact of the Project Evaluation and Review Techniques (PERT) mathematical model software development for the supply of domestic well-water treatment plant. After testing software against the values then, the 37days calculated Expected Time (ET) is unreliable because the risk involved in this project is (100 – 34.23) % = 65.77 %. However, a new completing date can be predicted by PERT mathematical model for supply of domestic well-water treatment plant by varying probability of completion to predict new date of completing the plant. Therefore, concerning this research the Initial probability was moved from 34.23% to 90%. By interpolation with 37 days; the new acceptable date was 97.28 days. The risk involved now (100 – 90) % reduced to 10%, a very good comfortable zone for the project. This information has really helped in two ways: for easy computation and decision making in water supply scheme project. This result is useful in industrialization, individuals, housing estate, small and medium scale industries where quality domestic well-water for crops production is a necessity. Hence, it is recommended that, the developed mathematical models performed

Highlights

Water is very important source of life
The accuracy of environmental assessment using models depends on the understanding of processes which occur in the environment and on appropriate choice of mathematical equations that describe them
Computer simulation methods are becoming popular in scientific research, as far as the research on the aquatic environment quality is concerned

Summary

Introduction

Water is very important source of life. Drinking water supply is one of the prime services to be provided by government in any nation. Water is one of the most common substances known It is a good solvent for many substances and rarely occurs in its pure form in nature. Spring water contains a considerable amount of mineral salts but very little suspended impurities such as dust, sand and dirt, so it is a good source of drinking water when treated. One of the tools that are used to solve problems of surface water pollution is modeling of changes which take place in lake waters and associated water quality changes. Such a model can be used to predict water quality, taking into account changes that affect water quality factors or changes in their intensity. It depends on available data sets, namely results of the measurement of water quality indicators, on which the estimation of parameters and coefficients of the model is based (Gromiec, 2018)

Methods

Discussion

Conclusion