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Design and Performance Study of a Bench-Scale Biological Wastewater Treatment Plant for a Sea Food Processing Industry

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dc.contributor.advisor Bari, Prof. Dr. Quazi Hamidul
dc.contributor.author Debnath, Pronab Kumar
dc.date.accessioned 2019-04-23T11:06:06Z
dc.date.available 2019-04-23T11:06:06Z
dc.date.copyright 2018
dc.date.issued 2018-09
dc.identifier.other ID 1601560
dc.identifier.uri http://hdl.handle.net/20.500.12228/507
dc.description This thesis is submitted to the Department of Civil Engineering, Khulna University of Engineering & Technology in partial fulfillment of the requirements for the degree of Masters of Science in Civil Engineering, September 2018. en_US
dc.description Cataloged from PDF Version of Thesis.
dc.description Includes bibliographical references (pages 83-87).
dc.description.abstract Shrimp industries are though important in respect of foreign earnings they are producing huge amount of wastewater that contain large quantities of biodegradable organic wastes and disposed directly to the environment without any treatment. It is noted that none of the industries are following ECR 1997 (Revised in 2010) and they do not have effluent treatment plant that designed based on the characteristics of shrimp processed wastewater so far. Conventional ETP is physico-chemical type and takes higher cost in operation. Therefore, the best possible biological wastewater treatment plant design and its performance analysis is the main goal of the study. Wastewater has been collected from a selected industry. The wastewater samples were characterized for the basic wastewater qualities. Based on the characterization and literature review the design criteria has been selected. A bench scale treatment plant has been designed and installed in the Environmental Engineering lab. The bench scale plant were run over a designed period of 12 to 13 months during July 2017 to May 2018. About 400 selected samples were collected and tested for were 12 different selected parameters. As found that the shrimp processed wastewater contains large amount of organic waste, thus decision has been taken to design suspended growth activated sludge biological treatment process. In bench scale plant, two clarifiers and an aeration basin have been designed as a completely mixed extended aeration activated sludge process. Collected wastewater from the selected industry and poured in to the bench scale plant. According to design the hydraulic retention time was nearly eight hours. The results show that the raw wastewater of shrimp processing industry contain average DO, BOD5, COD, TDS, SS and Chloride of 2.07, 177, 355, 2894, 383 and 821 mg/L respectively. The EC and pH was contain of 4.51 mS/cm and 8.03. The bench scale plant has removed remarkable organic loading. The BOD5 reduction has been founded from 177 to 41 mg/L (77%) and COD from 355 to 117 mg/L (67%) respectively. The rest of all parameters have met the national standard. It can be said from the obtained analysis that the treatment was moderate level. Based on the foregoing result it may be said, this design criteria or bench scale plant can be effectively used in shrimp processed wastewater treatment. en_US
dc.description.statementofresponsibility Pronab Kumar Debnath
dc.format.extent 95 pages
dc.language.iso en_US en_US
dc.publisher Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh en_US
dc.rights Khulna University of Engineering & Technology (KUET) thesis/dissertation/internship reports are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.
dc.subject Wastewater en_US
dc.subject Wastewater Treatment Plant en_US
dc.subject Shrimp Industry en_US
dc.subject Sea Food Processing Industry en_US
dc.title Design and Performance Study of a Bench-Scale Biological Wastewater Treatment Plant for a Sea Food Processing Industry en_US
dc.type Thesis en_US
dc.description.degree Masters of Science in Civil Engineering
dc.contributor.department Department of Civil Engineering

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