A comprehensive study on evaluating the efficacy of natural  coagulants and sand bed filtration in removing pollutants from  surface water quality

Auni, Md. Tajbiul Haque; Riman, Md. Wali Ullah; Rahman, Md. Reduan; Ahbab, Chowdhury Sakif

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dc.contributor.author	Auni, Md. Tajbiul Haque
dc.contributor.author	Riman, Md. Wali Ullah
dc.contributor.author	Rahman, Md. Reduan
dc.contributor.author	Ahbab, Chowdhury Sakif
dc.date.accessioned	2025-02-20T07:05:30Z
dc.date.available	2025-02-20T07:05:30Z
dc.date.issued	2024-09-30
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dc.identifier.uri	http://hdl.handle.net/123456789/2279
dc.description	Supervised by Mr. Md. Habibur Rahman Bejoy Khan, Assistant 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	en_US
dc.description.abstract	In the quest for sustainable water treatment methods, this comprehensive study evaluates the efficacy of natural coagulants and sand bed filtration in removing pollutants from surface water. The environmental hazards associated with synthetic coagulants have prompted the investigation into natural alternatives. This research focused on the coagulation efficiency of Moringa oleifera seeds, cactus opuntia, and chitosan due to their abundant availability and biodegradability. Experiments were conducted to compare the turbidity, total dissolved solids (TDS), chemical oxygen demand (COD), and microbial contamination levels before and after applying these natural coagulants. Subsequently, sand bed filtration was employed as a secondary treatment to further purify the water. The study's findings indicate that certain natural coagulants significantly reduce turbidity and COD levels, with a notable decrease in TDS and microbial counts. Moreover, when combined with sand bed filtration, these coagulants demonstrated a synergistic effect, leading to an even greater reduction in pollutants. The results suggest that the integration of natural coagulants with sand bed filtration could serve as an effective and environmentally friendly approach to improving surface water quality. This method holds promise for application in regions lacking access to advanced water treatment facilities, providing a cost-effective and accessible solution for clean water	en_US
dc.language.iso	en	en_US
dc.publisher	Department of Civil and Environmental Engineering(CEE), Islamic University of Technology(IUT), Board Bazar, Gazipur-1704, Bangladesh	en_US
dc.subject	Sustainable water treatment, natural coagulants, sand bed filtration, surface water quality, pollutants removal, Moringa oleifera, cactus opuntia, chitosan, turbidity, total dissolved solids (TDS), chemical oxygen demand (COD), microbial contamination, biodegradability, synergistic effect	en_US
dc.title	A comprehensive study on evaluating the efficacy of natural coagulants and sand bed filtration in removing pollutants from surface water quality	en_US
dc.type	Thesis	en_US