Advanced treatment technologies in the remediation of seleniferous drainage waters and sediments.
Advanced treatment technologies in the remediation of seleniferous drainage waters and sediments.
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DOI：
10.1023/b:irri.0000019422.68706.59
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发表时间：
2004-01-01
期刊：
影响因子：
--
通讯作者：
Toto, A.
中科院分区：
文献类型：
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作者：
Frankenberger, W. T., Jr.;Amrhein, C.;Toto, A.
硒在湿地和蒸发池中的生物积累对美国西部的鱼类和水禽造成了严重的危害。农业排水是该地区硒污染的主要来源。目前正在评估的处理技术，以减少硒负荷的农业排水包括物理，化学和生物方法。本文重点介绍了离子交换、反渗透、太阳池、铁化学还原、微藻-细菌处理、挥发、生物沉淀和流通式湿地去除水中硒的方法。每种技术的优点和缺点进行了评价和评估的成本效益和实际应用中处理大量的排水。随着对处理技术的深入研究，可以采用生物、化学和物理技术相结合的方法，制定一项具有成本效益的农业排水处理战略。
Bioaccumulation of selenium (Se) in wetlands and evaporation ponds has created serious hazards to fish and waterfowl in the western United States. Agricultural drainage water is the main source for Se contamination in this region. Treatment technologies currently being evaluated to reduce the Se load in agricultural drainage water include physical, chemical and biological methods. This article focuses on ion-exchange, reverse osmosis, solar ponds, chemical reduction with iron, microalgal-bacterial treatment, volatilization, biological precipitation, and flow-through wetlands to remove Se in water. Advantages and disadvantages of each technology are evaluated and assessed in terms of cost-effectiveness and practical applications in dealing with large volumes of drainage water. With intense research in treatment technologies, it is feasible that a combination of biological, chemical and physical techniques may be employed in the development of a cost-effective strategy to treat agricultural drainage water.