Industrial Effluent Treatment by Aeration and Filtration (Multimedia Filter)
Date
2024-06-03
Authors
Journal Title
Journal ISSN
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Publisher
Department of Civil and Environmental Engineering(CEE), Islamic University of Technology(IUT), Board Bazar, Gazipur-1704, Bangladesh
Abstract
Tannery industries produces large amount of wastewater containing huge amount of pollutants that
doesn’t satisfies the standard values of ECR. It should be treated before contaminating river water.
This study focuses on treating tannery wastewater without using any chemical products. The Study
aimed to reach Bangladesh guideline levels for industrial wastewater of which were pH(6-9),TS
(2200mg/L), EC(1200 micro siemens per centimeter), DO (6mg/l), At first aeration and
sedimentation was done of the wastewater for various retention times like 1 hour, 2 hours, 3 hours
and so on. After completing aeration and sedimentation finally filtration was done using a
multimedia filter which contains five layers of filter materials. These filter materials can reduce
turbidity, color, total suspended solids etc. The main aim of this project is reducing the chemical
oxygen demand (COD) value. These three steps process (aeration + sedimentation + filtration)
resulted in 80-90% reduction in COD. Pollutant removal efficiency was measured in terms of total
dissolved solids, total suspended solids, color, turbidity and COD. Dissolved oxygen level of the
wastewater was increased due to aeration. Most values were found to achieve standard values.
Description
Supervised by
Dr. Amimul Ahsan,
Associate Professor,
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
Keywords
Citation
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