Water quality assessment and trophic state classification of Tasik Ilmu, UTM

Freshwater lakes are valuable natural asset to humans for their significant functions. Unfortunately, exposure of the lakes with anthropogenic pollutants creates concern on the occurrence of enhanced eutrophication which further degrade the water quality. In this study, water quality of UTM’s lake a...

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Main Author:	Mst. Kaniz Fatema, Mst. Kaniz Fatema
Format:	Thesis
Language:	English
Published:	2019
Subjects:	TA Engineering (General) Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/81052/1/KanifFatemaMSKA2019.pdf
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id	my-utm-ep.81052
record_format	uketd_dc
spelling	my-utm-ep.810522019-07-24T03:06:32Z Water quality assessment and trophic state classification of Tasik Ilmu, UTM 2019-01 Mst. Kaniz Fatema, Mst. Kaniz Fatema TA Engineering (General). Civil engineering (General) Freshwater lakes are valuable natural asset to humans for their significant functions. Unfortunately, exposure of the lakes with anthropogenic pollutants creates concern on the occurrence of enhanced eutrophication which further degrade the water quality. In this study, water quality of UTM’s lake and river was characterized according the six water quality parameter of Malysian Department of Environment Water Quality Index (DOE-WQI), total phosphorus, fecal coliform, chl-a, transparency and turbidity. The impact of the oxidation pond (OP) on the lake water quality was also investigated and meanwhile, the trophic state of UTM’s lake was evaluated using Carlson index. Water samples were collected at seven locations including river, OP and lake for three times. The samples were analyzed for DO, BOD, COD, AN, total phosphorus and fecal coliform. The study found that, the WQI calculated for the lake was ranging from 69.5 to 70 which falls under Class III indicating that the water is slightly polluted and unsuitable for recreational use with body contact. The Trophic State Index (TSI) of Tasik Ilmu revealed that mean values of TSI(SD), TSI(chl-a) and TSI (TP) were 71.6, 65.4 and 100.2 respectively which reflect the eutrophic condition of the lake water. From the removal profile of OP it was found that, the COD removal was 60%, ammonical nitrogen and fecal coliform were only ranging between 30-33%, the total phosphorus and BOD were significant with 70% of removal. The classification of river water quality before the OP effluent falls under Class II with WQI 78 while, after the effluent it falls under Class III. In conclusion, the two indices TSI and WQI used for water quality assessment process confirmed that Tasik Ilmu is in a deteriorating state and effluents from the OP contributed to its deterioration. 2019-01 Thesis http://eprints.utm.my/id/eprint/81052/ http://eprints.utm.my/id/eprint/81052/1/KanifFatemaMSKA2019.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:125001 masters Universiti Teknologi Malaysia, Faculty of Engineering - School of Civil Engineering Faculty of Engineering - School of Civil Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TA Engineering (General) Civil engineering (General)
spellingShingle	TA Engineering (General) Civil engineering (General) Mst. Kaniz Fatema, Mst. Kaniz Fatema Water quality assessment and trophic state classification of Tasik Ilmu, UTM
description	Freshwater lakes are valuable natural asset to humans for their significant functions. Unfortunately, exposure of the lakes with anthropogenic pollutants creates concern on the occurrence of enhanced eutrophication which further degrade the water quality. In this study, water quality of UTM’s lake and river was characterized according the six water quality parameter of Malysian Department of Environment Water Quality Index (DOE-WQI), total phosphorus, fecal coliform, chl-a, transparency and turbidity. The impact of the oxidation pond (OP) on the lake water quality was also investigated and meanwhile, the trophic state of UTM’s lake was evaluated using Carlson index. Water samples were collected at seven locations including river, OP and lake for three times. The samples were analyzed for DO, BOD, COD, AN, total phosphorus and fecal coliform. The study found that, the WQI calculated for the lake was ranging from 69.5 to 70 which falls under Class III indicating that the water is slightly polluted and unsuitable for recreational use with body contact. The Trophic State Index (TSI) of Tasik Ilmu revealed that mean values of TSI(SD), TSI(chl-a) and TSI (TP) were 71.6, 65.4 and 100.2 respectively which reflect the eutrophic condition of the lake water. From the removal profile of OP it was found that, the COD removal was 60%, ammonical nitrogen and fecal coliform were only ranging between 30-33%, the total phosphorus and BOD were significant with 70% of removal. The classification of river water quality before the OP effluent falls under Class II with WQI 78 while, after the effluent it falls under Class III. In conclusion, the two indices TSI and WQI used for water quality assessment process confirmed that Tasik Ilmu is in a deteriorating state and effluents from the OP contributed to its deterioration.
format	Thesis
qualification_level	Master's degree
author	Mst. Kaniz Fatema, Mst. Kaniz Fatema
author_facet	Mst. Kaniz Fatema, Mst. Kaniz Fatema
author_sort	Mst. Kaniz Fatema, Mst. Kaniz Fatema
title	Water quality assessment and trophic state classification of Tasik Ilmu, UTM
title_short	Water quality assessment and trophic state classification of Tasik Ilmu, UTM
title_full	Water quality assessment and trophic state classification of Tasik Ilmu, UTM
title_fullStr	Water quality assessment and trophic state classification of Tasik Ilmu, UTM
title_full_unstemmed	Water quality assessment and trophic state classification of Tasik Ilmu, UTM
title_sort	water quality assessment and trophic state classification of tasik ilmu, utm
granting_institution	Universiti Teknologi Malaysia, Faculty of Engineering - School of Civil Engineering
granting_department	Faculty of Engineering - School of Civil Engineering
publishDate	2019
url	http://eprints.utm.my/id/eprint/81052/1/KanifFatemaMSKA2019.pdf
_version_	1747818299558723584

Water quality assessment and trophic state classification of Tasik Ilmu, UTM

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