降低地下水中砷含量之方法比較
Other Title
Comparison on Various Methods to Remove Arsenic in Groundwater
Journal
台灣農業研究
Journal Volume
65
Journal Issue
4
Pages
420-429
Date Issued
2016-12-07
Date
2016-12-07
Author(s)
廖崇億
廖倍滋
陳琦玲
Chong-Yi Liao
Pei-Tzu Liao
Chi-Ling Chen
Abstract
地下水為台灣中南部主要灌溉水源之一，然因地質因素，地下水砷含量常超過灌溉水質標準 (0.05 mg L-1)。為提供農業安全的灌溉水質，並減緩土壤砷的累積，本研究試用多種移除砷之方法，包含化學混凝法、陰離子交換法、電凝法、吸附法，氧化沉澱法等，先在實驗室以小量從現地取回之灌溉水篩選砷移除效率較佳者，進行雲林東勢鄉和北港鎮之現場2 Mg 水量除砷之驗證。
Groundwater is one of water resources for agricultural irrigation in Taiwan. However, the arsenic (As) content is higher than the As criteria of irrigation water (0.05 mg L-1) in some locations. The objective of the study is to find out a better removal method to diminish As concentration in groundwater. The lab-scale tests were attempted to compare the effectiveness of different methods such as chemical coagulation, ion-exchange, electro-coagulation, absorption, and oxidation precipitation.
Subjects
地下水
砷
化學混凝法
氧化沉澱法
Groundwater
Arsenic
Ferric chemical coagulation
Oxidation precipitation
Publisher
農業試驗所
Type
journal article
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