Modelling of household wastewater pollutants in Kuching, Sarawak

The objective of this study as to determine the quantity and quality of household wastcsyater and thus develop pollutant loading models as a function of socio-economic variables. The study was carried out at six residential areas in Kuching. namely RPR Ratu Kawa, Taman Malihah, Tahuan Java, Taman Sa...

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Main Author:	Siew, Tuck Fatt
Format:	Thesis
Language:	English
Published:	2002
Subjects:	TD Environmental technology Sanitary engineering
Online Access:	http://ir.unimas.my/id/eprint/28259/1/Siew%20Tuck%20Fatt.pdf
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id	my-unimas-ir.28259
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spelling	my-unimas-ir.282592023-08-15T07:49:28Z Modelling of household wastewater pollutants in Kuching, Sarawak 2002 Siew, Tuck Fatt TD Environmental technology. Sanitary engineering The objective of this study as to determine the quantity and quality of household wastcsyater and thus develop pollutant loading models as a function of socio-economic variables. The study was carried out at six residential areas in Kuching. namely RPR Ratu Kawa, Taman Malihah, Tahuan Java, Taman Satria Jaya, Village Grove Condominium. and De Summit Condominium. The residential areas were categorised into low-, middle- and high-income groups. Floe rates determination showed that the loss-income residential areas, RPR Ratu Kasa and Tanrm Malihah, discharged large quantity of wastewater throughout the day, 49.9 I/cap/day and 52.4 I cap, 'da) respectively, whilst "Taman Satria Java and Dc Summit Condominium had the lowest floe, 40.2 I, cap-day and 34.5 I/cap/day respectively. Four water quality parameters were selected for the modelling study i. e. RODc, phosphate, nitrate, and Iseherichca cols. The results showed that the BOD, (21.94 mg/l) and nitrate (0.16 mg/I) concentrations were relatively high in De Summit Condominium which is a high-income residential area. On the other hand, RPR Ratu Ka%ka and Taman Malihah contributed to the greatest amounts of phosphate (10 12 mg/I) due to higher level of household activities especially cashing %%hich also contributed to higher flow compared to other residential areas. Tabuan Jaya. RPR Ratu Kawa, and Taman Malihah discharged high E. co/i loads of4.8I x 109 CFU/cap/day, 3.33 x 109 C'H 'cap/day and 3.35 x 10" CFIJ/cap/day respectively, into the sewerage systems. This is most likely due to the fact that the septic tanks had never been desludgcd although the premises had been occupied for more than 10 year. Six models of pollutant loadings were dc%cloped as a function of socio-economic variables. 1 hose models included 1«01)s concentration, /: co/i count,, phosphate load and nitrate load as a function of average monthly total household income as well as phosphate load and E co/i counts as a function of per capita water consumption. the models wcre tested with field data. The testing of the models showed that the amount of pollutant discharged were dependent on local conditions as well as the behaviour of the individual household that affected the lifestyle consistency. These are the most likely causes in the variations of quantity and quality of pollutant loadings. Finally, an example of model application was presented to predict the pollutant loading in Kuching. The estimated F. co/i loading from residential areas was high. The findings through modelling of pollutant loading are able to assist in the design of %yastewater collection, treatment and disposal systems. Universiti Malaysia Sarawak (UNIMAS) 2002 Thesis http://ir.unimas.my/id/eprint/28259/ http://ir.unimas.my/id/eprint/28259/1/Siew%20Tuck%20Fatt.pdf text en validuser masters Universiti Malaysia Sarawak (UNIMAS) Faculty of Resource Science and Technology
institution	Universiti Malaysia Sarawak
collection	UNIMAS Institutional Repository
language	English
topic	TD Environmental technology Sanitary engineering
spellingShingle	TD Environmental technology Sanitary engineering Siew, Tuck Fatt Modelling of household wastewater pollutants in Kuching, Sarawak
description	The objective of this study as to determine the quantity and quality of household wastcsyater and thus develop pollutant loading models as a function of socio-economic variables. The study was carried out at six residential areas in Kuching. namely RPR Ratu Kawa, Taman Malihah, Tahuan Java, Taman Satria Jaya, Village Grove Condominium. and De Summit Condominium. The residential areas were categorised into low-, middle- and high-income groups. Floe rates determination showed that the loss-income residential areas, RPR Ratu Kasa and Tanrm Malihah, discharged large quantity of wastewater throughout the day, 49.9 I/cap/day and 52.4 I cap, 'da) respectively, whilst "Taman Satria Java and Dc Summit Condominium had the lowest floe, 40.2 I, cap-day and 34.5 I/cap/day respectively. Four water quality parameters were selected for the modelling study i. e. RODc, phosphate, nitrate, and Iseherichca cols. The results showed that the BOD, (21.94 mg/l) and nitrate (0.16 mg/I) concentrations were relatively high in De Summit Condominium which is a high-income residential area. On the other hand, RPR Ratu Ka%ka and Taman Malihah contributed to the greatest amounts of phosphate (10 12 mg/I) due to higher level of household activities especially cashing %%hich also contributed to higher flow compared to other residential areas. Tabuan Jaya. RPR Ratu Kawa, and Taman Malihah discharged high E. co/i loads of4.8I x 109 CFU/cap/day, 3.33 x 109 C'H 'cap/day and 3.35 x 10" CFIJ/cap/day respectively, into the sewerage systems. This is most likely due to the fact that the septic tanks had never been desludgcd although the premises had been occupied for more than 10 year. Six models of pollutant loadings were dc%cloped as a function of socio-economic variables. 1 hose models included 1«01)s concentration, /: co/i count,, phosphate load and nitrate load as a function of average monthly total household income as well as phosphate load and E co/i counts as a function of per capita water consumption. the models wcre tested with field data. The testing of the models showed that the amount of pollutant discharged were dependent on local conditions as well as the behaviour of the individual household that affected the lifestyle consistency. These are the most likely causes in the variations of quantity and quality of pollutant loadings. Finally, an example of model application was presented to predict the pollutant loading in Kuching. The estimated F. co/i loading from residential areas was high. The findings through modelling of pollutant loading are able to assist in the design of %yastewater collection, treatment and disposal systems.
format	Thesis
qualification_level	Master's degree
author	Siew, Tuck Fatt
author_facet	Siew, Tuck Fatt
author_sort	Siew, Tuck Fatt
title	Modelling of household wastewater pollutants in Kuching, Sarawak
title_short	Modelling of household wastewater pollutants in Kuching, Sarawak
title_full	Modelling of household wastewater pollutants in Kuching, Sarawak
title_fullStr	Modelling of household wastewater pollutants in Kuching, Sarawak
title_full_unstemmed	Modelling of household wastewater pollutants in Kuching, Sarawak
title_sort	modelling of household wastewater pollutants in kuching, sarawak
granting_institution	Universiti Malaysia Sarawak (UNIMAS)
granting_department	Faculty of Resource Science and Technology
publishDate	2002
url	http://ir.unimas.my/id/eprint/28259/1/Siew%20Tuck%20Fatt.pdf
_version_	1783728358281969664

Modelling of household wastewater pollutants in Kuching, Sarawak

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