Study of recycled concrete aggregate as filter media for phosphorus removal in synthetic wastewater

Phosphorus is one of the key nutrients that lead to eutrophication in surface water. However, existing conventional wastewater treatment systems for removing phosphorus are expensive and complex. Recycled concrete aggregate (RCA) may be an alternative solution for phosphorus removal. It can reduce p...

Full description

Saved in:

Bibliographic Details
Main Author:	Abd Roni, Norwardatun
Format:	Thesis
Language:	English English English
Published:	2019
Subjects:	TD511-780 Sewage collection and disposal systems Sewerage
Online Access:	http://eprints.uthm.edu.my/619/1/24p%20NORWARDATUN%20ABD%20RONI.pdf http://eprints.uthm.edu.my/619/2/NORWARDATUN%20ABD%20RONI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/619/3/NORWARDATUN%20ABD%20RONI%20WATERMARK.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-uthm-ep.619
record_format	uketd_dc
spelling	my-uthm-ep.6192021-08-11T04:48:00Z Study of recycled concrete aggregate as filter media for phosphorus removal in synthetic wastewater 2019-03 Abd Roni, Norwardatun TD511-780 Sewage collection and disposal systems. Sewerage Phosphorus is one of the key nutrients that lead to eutrophication in surface water. However, existing conventional wastewater treatment systems for removing phosphorus are expensive and complex. Recycled concrete aggregate (RCA) may be an alternative solution for phosphorus removal. It can reduce pollution and landfill disposal by converting construction waste into valuable products. This study aims to investigate the physical and chemical characteristics of RCA that influence the removal of phosphorus, as well as the percentage of phosphorus removal using RCAs of two different sizes namely, 5 mm to 10 mm and 25 mm to 30 mm. A total of five vertical laboratory-scale RCA filters were designed and five different concentrations of synthetic wastewater between 10 – 50 mg/L were prepared. The samples taken from the influent and effluent filters were tested and analysed in terms of pH, the uptake capacity of phosphorus (q) and the percentage of phosphorus removal (%). RCA was analysed using Scanning Electron Microscopy (SEM) and Energy-dispersive X-ray spectroscopy (EDX) to determine its chemical composition. The results show that RCA has a high content of aluminium, calcium and magnesium that enhances phosphorus adsorption. RCA measuring between 5 mm to 10 mm in 10 mg/L of synthetic wastewater achieved the highest phosphorus removal percentage of 99.54% at a pH 10. The highest percentage of phosphorus removal achieved was 99.54% in the initial concentration of 10 mg/L by RCA measuring between 5 mm to 10 mm while the lowest percentage of phosphorus removal was 66.25% in the initial concentration of 50 mg/L for RCAs measuring between 25 mm to 30 mm. Furthermore, RCA achieved the highest uptake capacity (q) of 3.45 mg/L in the initial wastewater concentration of 50 mg/L. In conclusion, RCA has the potential to remove phosphorus, particularly in low concentrations of synthetic wastewater and high pH conditions. 2019-03 Thesis http://eprints.uthm.edu.my/619/ http://eprints.uthm.edu.my/619/1/24p%20NORWARDATUN%20ABD%20RONI.pdf text en public http://eprints.uthm.edu.my/619/2/NORWARDATUN%20ABD%20RONI%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/619/3/NORWARDATUN%20ABD%20RONI%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Onn Malaysia Fakulti Teknologi Kejuruteraan
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	TD511-780 Sewage collection and disposal systems Sewerage
spellingShingle	TD511-780 Sewage collection and disposal systems Sewerage Abd Roni, Norwardatun Study of recycled concrete aggregate as filter media for phosphorus removal in synthetic wastewater
description	Phosphorus is one of the key nutrients that lead to eutrophication in surface water. However, existing conventional wastewater treatment systems for removing phosphorus are expensive and complex. Recycled concrete aggregate (RCA) may be an alternative solution for phosphorus removal. It can reduce pollution and landfill disposal by converting construction waste into valuable products. This study aims to investigate the physical and chemical characteristics of RCA that influence the removal of phosphorus, as well as the percentage of phosphorus removal using RCAs of two different sizes namely, 5 mm to 10 mm and 25 mm to 30 mm. A total of five vertical laboratory-scale RCA filters were designed and five different concentrations of synthetic wastewater between 10 – 50 mg/L were prepared. The samples taken from the influent and effluent filters were tested and analysed in terms of pH, the uptake capacity of phosphorus (q) and the percentage of phosphorus removal (%). RCA was analysed using Scanning Electron Microscopy (SEM) and Energy-dispersive X-ray spectroscopy (EDX) to determine its chemical composition. The results show that RCA has a high content of aluminium, calcium and magnesium that enhances phosphorus adsorption. RCA measuring between 5 mm to 10 mm in 10 mg/L of synthetic wastewater achieved the highest phosphorus removal percentage of 99.54% at a pH 10. The highest percentage of phosphorus removal achieved was 99.54% in the initial concentration of 10 mg/L by RCA measuring between 5 mm to 10 mm while the lowest percentage of phosphorus removal was 66.25% in the initial concentration of 50 mg/L for RCAs measuring between 25 mm to 30 mm. Furthermore, RCA achieved the highest uptake capacity (q) of 3.45 mg/L in the initial wastewater concentration of 50 mg/L. In conclusion, RCA has the potential to remove phosphorus, particularly in low concentrations of synthetic wastewater and high pH conditions.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Abd Roni, Norwardatun
author_facet	Abd Roni, Norwardatun
author_sort	Abd Roni, Norwardatun
title	Study of recycled concrete aggregate as filter media for phosphorus removal in synthetic wastewater
title_short	Study of recycled concrete aggregate as filter media for phosphorus removal in synthetic wastewater
title_full	Study of recycled concrete aggregate as filter media for phosphorus removal in synthetic wastewater
title_fullStr	Study of recycled concrete aggregate as filter media for phosphorus removal in synthetic wastewater
title_full_unstemmed	Study of recycled concrete aggregate as filter media for phosphorus removal in synthetic wastewater
title_sort	study of recycled concrete aggregate as filter media for phosphorus removal in synthetic wastewater
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Fakulti Teknologi Kejuruteraan
publishDate	2019
url	http://eprints.uthm.edu.my/619/1/24p%20NORWARDATUN%20ABD%20RONI.pdf http://eprints.uthm.edu.my/619/2/NORWARDATUN%20ABD%20RONI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/619/3/NORWARDATUN%20ABD%20RONI%20WATERMARK.pdf
_version_	1747830647579213824

Study of recycled concrete aggregate as filter media for phosphorus removal in synthetic wastewater

Similar Items