Study on the Treatment of Iron and Manganese in Groundwater by Micro-Filtration System
博士 === 國立中興大學 === 環境工程學系所 === 99 === Fe and Mn are commonly found in underground, causing problems when treating groundwater. The removal process must first oxidize reduced ions into oxide particles, and then perform solid-liquid separation. This study sampled groundwater from water treatment plant...
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ndltd-TW-099NCHU50870032015-10-30T04:05:20Z http://ndltd.ncl.edu.tw/handle/27740464631929461294 Study on the Treatment of Iron and Manganese in Groundwater by Micro-Filtration System 微過濾薄膜系統處理地下水中鐵錳之研究 Wen-Hsiang Chen 陳文祥 博士 國立中興大學 環境工程學系所 99 Fe and Mn are commonly found in underground, causing problems when treating groundwater. The removal process must first oxidize reduced ions into oxide particles, and then perform solid-liquid separation. This study sampled groundwater from water treatment plant in Changhua, containing Fe (0.4mg/L) and Mn (0.5mg/L), and separated the Fe and Mn oxide particles with PTFE hollow fiber micro-filter module after aeration and chlorine oxidation. The performances were compared to traditional greensand filtering. The results showed that the residual concentration of Fe in treated water was almost the same in two processes, but the removal of Mn varied greatly. Initially, the concentration of remaining Mn after MF was over 0.1mg/L, which was higher than the water quality standard (0.05mg/L), but after two weeks of operation, Mn in treated water was gradually decreased to below 0.01mg/L. It reveals that the Fe-Mn sludge, next to all hollow fibers, plays an important role. PTFE hollow fiber membrane modue operated under low pressure showed a low fouling trend. Yung-Hsu Hsieh, 謝永旭 2010 學位論文 ; thesis 178 zh-TW |
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博士 === 國立中興大學 === 環境工程學系所 === 99 === Fe and Mn are commonly found in underground, causing problems when treating groundwater. The removal process must first oxidize reduced ions into oxide particles, and then perform solid-liquid separation. This study sampled groundwater from water treatment plant in Changhua, containing Fe (0.4mg/L) and Mn (0.5mg/L), and separated the Fe and Mn oxide particles with PTFE hollow fiber micro-filter module after aeration and chlorine oxidation. The performances were compared to traditional greensand filtering. The results showed that the residual concentration of Fe in treated water was almost the same in two processes, but the removal of Mn varied greatly. Initially, the concentration of remaining Mn after MF was over 0.1mg/L, which was higher than the water quality standard (0.05mg/L), but after two weeks of operation, Mn in treated water was gradually decreased to below 0.01mg/L. It reveals that the Fe-Mn sludge, next to all hollow fibers, plays an important role. PTFE hollow fiber membrane modue operated under low pressure showed a low fouling trend.
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author2 |
Yung-Hsu Hsieh, |
author_facet |
Yung-Hsu Hsieh, Wen-Hsiang Chen 陳文祥 |
author |
Wen-Hsiang Chen 陳文祥 |
spellingShingle |
Wen-Hsiang Chen 陳文祥 Study on the Treatment of Iron and Manganese in Groundwater by Micro-Filtration System |
author_sort |
Wen-Hsiang Chen |
title |
Study on the Treatment of Iron and Manganese in Groundwater by Micro-Filtration System |
title_short |
Study on the Treatment of Iron and Manganese in Groundwater by Micro-Filtration System |
title_full |
Study on the Treatment of Iron and Manganese in Groundwater by Micro-Filtration System |
title_fullStr |
Study on the Treatment of Iron and Manganese in Groundwater by Micro-Filtration System |
title_full_unstemmed |
Study on the Treatment of Iron and Manganese in Groundwater by Micro-Filtration System |
title_sort |
study on the treatment of iron and manganese in groundwater by micro-filtration system |
publishDate |
2010 |
url |
http://ndltd.ncl.edu.tw/handle/27740464631929461294 |
work_keys_str_mv |
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