Abstract:
Modern and effective water filtration techniques are required due to the growing pollution of river
water caused by industrial discharge, agricultural runoff, and urbanization. The goal of this work
is to improve the efficiency of river water filtration through the design of multimedia filters. Our
approach aims to remove physical, chemical, and biological contaminants more effectively by
combining different filtration media with unique properties. The study focuses on optimizing the
arrangement and choice of filtration materials, such as sand, anthracite, and gravel, and examines
their impact on flow rates, maintenance needs, and filtration efficiency.
Experimental analysis shows that the optimized filter design achieved up to 73% reduction in
turbidity, 74.6% removal of color, and a maximum of 35% decrease in Chemical Oxygen Demand
(COD). The aim is to develop a multimedia filter design that maximizes contaminant removal
efficiency while minimizing energy and maintenance costs.
The results offer new perspectives on optimizing multimedia filters for treating river water. The
optimized filter design is suitable for both urban and rural applications, providing an affordable
and environmentally friendly solution to improve water quality. This study advances
environmental engineering and protects public health by ensuring safer water for communities
dependent on rivers for their daily needs.
Description:
Supervised by
Dr. Amimul Ahsan,
Department of Civil and Environmental Engineering(CEE),
Islamic University of Technology(IUT),
Board Bazar, Gazipur-1704, Bangladesh.
This thesis is submitted in partial fulfillment of the requirements for the degree of Bachelor of Civil and Environmental Engineering, 2024