Bioactive sand filters for water treatment

Bacteria and phosphate are two main contaminants in water and many means to remove these contaminants are available. This report aims to study the competitive adsorption of bacteria and phosphate onto iron oxyhydroxide(FeOOH)-coated surfaces. First, the performance of FeOOH-coated filters in removin...

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Main Author: Tan, Nicholas Shuo Jie
Other Authors: Cao Bin
Format: Final Year Project
Language:English
Published: 2017
Subjects:
Online Access:http://hdl.handle.net/10356/72453
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-724532023-03-03T17:16:55Z Bioactive sand filters for water treatment Tan, Nicholas Shuo Jie Cao Bin School of Civil and Environmental Engineering DRNTU::Engineering::Environmental engineering::Water treatment Bacteria and phosphate are two main contaminants in water and many means to remove these contaminants are available. This report aims to study the competitive adsorption of bacteria and phosphate onto iron oxyhydroxide(FeOOH)-coated surfaces. First, the performance of FeOOH-coated filters in removing bacteria and phosphate separately was examined through syringe column experiments. Following which, the effectiveness on an influent mixed with both water contaminants would be examined. Breakthrough curves of bacteria and phosphate were obtained. The FeOOH coating had generally increased the efficiencies of phosphate removal, though the impact on bacteria in this experiment is relatively uncertain. This may be attributed to the alteration of surface charge of the porous media by FeOOH, improving adsorption performance. In the presence of bacteria, phosphate removal by FeOOH was reduced. This study indicates that there may be competitive adsorption between phosphate and bacteria to FeOOH surfaces. Bachelor of Engineering (Environmental Engineering) 2017-07-20T01:28:43Z 2017-07-20T01:28:43Z 2017 Final Year Project (FYP) http://hdl.handle.net/10356/72453 en Nanyang Technological University 20 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Environmental engineering::Water treatment
spellingShingle DRNTU::Engineering::Environmental engineering::Water treatment
Tan, Nicholas Shuo Jie
Bioactive sand filters for water treatment
description Bacteria and phosphate are two main contaminants in water and many means to remove these contaminants are available. This report aims to study the competitive adsorption of bacteria and phosphate onto iron oxyhydroxide(FeOOH)-coated surfaces. First, the performance of FeOOH-coated filters in removing bacteria and phosphate separately was examined through syringe column experiments. Following which, the effectiveness on an influent mixed with both water contaminants would be examined. Breakthrough curves of bacteria and phosphate were obtained. The FeOOH coating had generally increased the efficiencies of phosphate removal, though the impact on bacteria in this experiment is relatively uncertain. This may be attributed to the alteration of surface charge of the porous media by FeOOH, improving adsorption performance. In the presence of bacteria, phosphate removal by FeOOH was reduced. This study indicates that there may be competitive adsorption between phosphate and bacteria to FeOOH surfaces.
author2 Cao Bin
author_facet Cao Bin
Tan, Nicholas Shuo Jie
format Final Year Project
author Tan, Nicholas Shuo Jie
author_sort Tan, Nicholas Shuo Jie
title Bioactive sand filters for water treatment
title_short Bioactive sand filters for water treatment
title_full Bioactive sand filters for water treatment
title_fullStr Bioactive sand filters for water treatment
title_full_unstemmed Bioactive sand filters for water treatment
title_sort bioactive sand filters for water treatment
publishDate 2017
url http://hdl.handle.net/10356/72453
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