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Assessment and treatment of groundwater in Selangor area: unconfined and confined aquifer

A variety of chemical, physical and biological processes can alter the chemistry of water as it is moves along flow paths from recharge areas to points deeper in the aquifer. For industrial water use, these metals tend to oxidize and precipitate in piping systems reducing their hydraulic capacities....

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Main Authors:	Nik Daud, Nik Norsyahariati, Izehar, Nur Hazwani
Format:	Conference or Workshop Item
Language:	English
Published:	2015
Online Access:	http://psasir.upm.edu.my/id/eprint/65643/1/ICWR2015-3.pdf http://psasir.upm.edu.my/id/eprint/65643/
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spelling	my.upm.eprints.656432018-11-02T01:11:24Z http://psasir.upm.edu.my/id/eprint/65643/ Assessment and treatment of groundwater in Selangor area: unconfined and confined aquifer Nik Daud, Nik Norsyahariati Izehar, Nur Hazwani A variety of chemical, physical and biological processes can alter the chemistry of water as it is moves along flow paths from recharge areas to points deeper in the aquifer. For industrial water use, these metals tend to oxidize and precipitate in piping systems reducing their hydraulic capacities. The aeration and filtration process is normally applied in treatment process for removing iron and manganese either for domestic consumption or irrigation purposes. The objectives of this paper are i) to investigate the groundwater properties refer to the type of aquifer, and ii) to analyze the groundwater properties during aeration process in a small tanks. Samples were collected from four different sites; two sites for each type of aquifer. Those samples will be treated by aeration (water-into-air method) and filtration process by using a small scale tank in laboratory with a final polish by using manganese greensand. The properties of groundwater such as pH, dissolved oxygen, turbidity and heavy metal concentration (iron and manganese) will be assessed during the process (3, 5 and 7 hours) and compared between two types of aquifer; unconfined and confined. The pH values for all samples after treatment process is in the range of 7.04 to 8.38 and 6.82 to 7.63 for unconfined aquifer (sample A, B) and confined aquifer (sample C, D) water samples, respectively. The water-into-air aeration methods increased the dissolved oxygen content for both aquifers. It can be summarised that the turbidity values for unconfined and confined aquifer samples are reduced which is for sample A; from 39.20 to 29.30 NTU, sample B; 27.40 to 19.09 NTU, sample C; 5.73 to 4.25 NTU and sample D; 9.17 to 6.32 NTU for the whole 7 hours process. For iron and manganese concentration, there are reduction pattern for all samples except for samples D, the values of iron concentration were not detected. It can be concluded that for all parameters observed, there are changes in values either increased or decreased throughout the aeration and filtration process for both studied aquifers. 2015 Conference or Workshop Item PeerReviewed text en http://psasir.upm.edu.my/id/eprint/65643/1/ICWR2015-3.pdf Nik Daud, Nik Norsyahariati and Izehar, Nur Hazwani (2015) Assessment and treatment of groundwater in Selangor area: unconfined and confined aquifer. In: 3rd International Conference on Water Resources (ICWR-2015), 24-25 Nov. 2015, Bayview Hotel, Langkawi, Kedah. .
institution	Universiti Putra Malaysia
building	UPM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Putra Malaysia
content_source	UPM Institutional Repository
url_provider	http://psasir.upm.edu.my/
language	English
description	A variety of chemical, physical and biological processes can alter the chemistry of water as it is moves along flow paths from recharge areas to points deeper in the aquifer. For industrial water use, these metals tend to oxidize and precipitate in piping systems reducing their hydraulic capacities. The aeration and filtration process is normally applied in treatment process for removing iron and manganese either for domestic consumption or irrigation purposes. The objectives of this paper are i) to investigate the groundwater properties refer to the type of aquifer, and ii) to analyze the groundwater properties during aeration process in a small tanks. Samples were collected from four different sites; two sites for each type of aquifer. Those samples will be treated by aeration (water-into-air method) and filtration process by using a small scale tank in laboratory with a final polish by using manganese greensand. The properties of groundwater such as pH, dissolved oxygen, turbidity and heavy metal concentration (iron and manganese) will be assessed during the process (3, 5 and 7 hours) and compared between two types of aquifer; unconfined and confined. The pH values for all samples after treatment process is in the range of 7.04 to 8.38 and 6.82 to 7.63 for unconfined aquifer (sample A, B) and confined aquifer (sample C, D) water samples, respectively. The water-into-air aeration methods increased the dissolved oxygen content for both aquifers. It can be summarised that the turbidity values for unconfined and confined aquifer samples are reduced which is for sample A; from 39.20 to 29.30 NTU, sample B; 27.40 to 19.09 NTU, sample C; 5.73 to 4.25 NTU and sample D; 9.17 to 6.32 NTU for the whole 7 hours process. For iron and manganese concentration, there are reduction pattern for all samples except for samples D, the values of iron concentration were not detected. It can be concluded that for all parameters observed, there are changes in values either increased or decreased throughout the aeration and filtration process for both studied aquifers.
format	Conference or Workshop Item
author	Nik Daud, Nik Norsyahariati Izehar, Nur Hazwani
spellingShingle	Nik Daud, Nik Norsyahariati Izehar, Nur Hazwani Assessment and treatment of groundwater in Selangor area: unconfined and confined aquifer
author_facet	Nik Daud, Nik Norsyahariati Izehar, Nur Hazwani
author_sort	Nik Daud, Nik Norsyahariati
title	Assessment and treatment of groundwater in Selangor area: unconfined and confined aquifer
title_short	Assessment and treatment of groundwater in Selangor area: unconfined and confined aquifer
title_full	Assessment and treatment of groundwater in Selangor area: unconfined and confined aquifer
title_fullStr	Assessment and treatment of groundwater in Selangor area: unconfined and confined aquifer
title_full_unstemmed	Assessment and treatment of groundwater in Selangor area: unconfined and confined aquifer
title_sort	assessment and treatment of groundwater in selangor area: unconfined and confined aquifer
publishDate	2015
url	http://psasir.upm.edu.my/id/eprint/65643/1/ICWR2015-3.pdf http://psasir.upm.edu.my/id/eprint/65643/
_version_	1643838367453937664
score	13.250246

Assessment and treatment of groundwater in Selangor area: unconfined and confined aquifer

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