Investigating the Efficiency of Coffee Husks in Bio-Retention Model for Storm Water Treatment.

A bio-retention is the storm water Best Management Practices (BMP) designed to capture and treat the runoff using the natural properties of soil and plants to remove contaminants. Storm water from rooftops, paved areas, bare soil and sloped lawns transports eroded soil, animal wastes, litter, salts,...

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Main Author: Musasizi, Joseph
Format: Thesis
Language:English
Published: Kabale University 2024
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Online Access:http://hdl.handle.net/20.500.12493/2284
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author Musasizi, Joseph
author_facet Musasizi, Joseph
author_sort Musasizi, Joseph
collection KAB-DR
description A bio-retention is the storm water Best Management Practices (BMP) designed to capture and treat the runoff using the natural properties of soil and plants to remove contaminants. Storm water from rooftops, paved areas, bare soil and sloped lawns transports eroded soil, animal wastes, litter, salts, pesticides, fertilizers, oil and grease and other potential pollutants which flows directly into the streams and rivers. This spoils the stream water quality and thereby causing a decline in aquatic biota. However, the selection of appropriate media structure and optimized design have not been adequately researched. Additionally, the applicability of bio-retention systems has not been introduced and implemented in Uganda. Therefore, this study is aimed at investigating the efficiency of bio-retention system in the removal of storm water pollutants using coffee husks. The physical bioretention model of four Columns: J, M, N and P of 102 mm diameter and 1050mm height was developed. The layers of filter media arranged as described in table 3.2 in chapter 3. The coffee husks were introduced into columns M, N and P in varying depth leaving J as control experiment (traditional sand filter bed). Materials used in the media structure were analyzed to meet the standards according to the bioretention design manual. The quality parameters of raw stormwater composite sample were determined before passing through the model and after passing through the model at different intervals i.e., at 0, 5, 10, 20 and 30 days after introducing the coffee husks into the model. The parameters tested were Temperature, pH, Electrical Conductivity (EC), Total Dissolved Solids (TDS), Total Coliforms (TC), Faecal Coliforms (FC) or E. coli (EC), Total Suspended Solids (TSS), Biochemical Oxygen Demand (BOD), Oil & Grease (OG), Chlorides, Sulphates, Phosphorous, Turbidity and Colour. The results of the study showed that the bioretention column P drastically improved storm water quality at 30 days by reducing values of Faecal Coliforms, Total Suspended Solids, Total Coliforms, Biological Oxygen Demand and Nitrates as compared to the tested raw storm water composite sample except Colour.
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spelling oai:idr.kab.ac.ug:20.500.12493-22842024-08-08T00:00:48Z Investigating the Efficiency of Coffee Husks in Bio-Retention Model for Storm Water Treatment. Musasizi, Joseph Investigating Efficiency Coffee Husks Bio-Retention Model Storm Water Treatment A bio-retention is the storm water Best Management Practices (BMP) designed to capture and treat the runoff using the natural properties of soil and plants to remove contaminants. Storm water from rooftops, paved areas, bare soil and sloped lawns transports eroded soil, animal wastes, litter, salts, pesticides, fertilizers, oil and grease and other potential pollutants which flows directly into the streams and rivers. This spoils the stream water quality and thereby causing a decline in aquatic biota. However, the selection of appropriate media structure and optimized design have not been adequately researched. Additionally, the applicability of bio-retention systems has not been introduced and implemented in Uganda. Therefore, this study is aimed at investigating the efficiency of bio-retention system in the removal of storm water pollutants using coffee husks. The physical bioretention model of four Columns: J, M, N and P of 102 mm diameter and 1050mm height was developed. The layers of filter media arranged as described in table 3.2 in chapter 3. The coffee husks were introduced into columns M, N and P in varying depth leaving J as control experiment (traditional sand filter bed). Materials used in the media structure were analyzed to meet the standards according to the bioretention design manual. The quality parameters of raw stormwater composite sample were determined before passing through the model and after passing through the model at different intervals i.e., at 0, 5, 10, 20 and 30 days after introducing the coffee husks into the model. The parameters tested were Temperature, pH, Electrical Conductivity (EC), Total Dissolved Solids (TDS), Total Coliforms (TC), Faecal Coliforms (FC) or E. coli (EC), Total Suspended Solids (TSS), Biochemical Oxygen Demand (BOD), Oil & Grease (OG), Chlorides, Sulphates, Phosphorous, Turbidity and Colour. The results of the study showed that the bioretention column P drastically improved storm water quality at 30 days by reducing values of Faecal Coliforms, Total Suspended Solids, Total Coliforms, Biological Oxygen Demand and Nitrates as compared to the tested raw storm water composite sample except Colour. 2024-08-07T09:00:58Z 2024-08-07T09:00:58Z 2024 Thesis Musasizi, Joseph (2024). Investigating the Efficiency of Coffee Husks in Bio-Retention Model for Storm Water Treatment. Kabale: kabale University. http://hdl.handle.net/20.500.12493/2284 en Attribution-NonCommercial-NoDerivs 3.0 United States http://creativecommons.org/licenses/by-nc-nd/3.0/us/ application/pdf Kabale University
spellingShingle Investigating
Efficiency
Coffee Husks
Bio-Retention Model
Storm Water Treatment
Musasizi, Joseph
Investigating the Efficiency of Coffee Husks in Bio-Retention Model for Storm Water Treatment.
title Investigating the Efficiency of Coffee Husks in Bio-Retention Model for Storm Water Treatment.
title_full Investigating the Efficiency of Coffee Husks in Bio-Retention Model for Storm Water Treatment.
title_fullStr Investigating the Efficiency of Coffee Husks in Bio-Retention Model for Storm Water Treatment.
title_full_unstemmed Investigating the Efficiency of Coffee Husks in Bio-Retention Model for Storm Water Treatment.
title_short Investigating the Efficiency of Coffee Husks in Bio-Retention Model for Storm Water Treatment.
title_sort investigating the efficiency of coffee husks in bio retention model for storm water treatment
topic Investigating
Efficiency
Coffee Husks
Bio-Retention Model
Storm Water Treatment
url http://hdl.handle.net/20.500.12493/2284
work_keys_str_mv AT musasizijoseph investigatingtheefficiencyofcoffeehusksinbioretentionmodelforstormwatertreatment