Recent Trends in Arsenic Removal Technologies
The presence of high concentration of arsenic in drinking water is a major concern to many water utilities and regulatory agencies. In order to minimize adverse impacts on human health, it is necessary to reduce arsenic levels in drinking water to acceptable levels (less than 10 micrograms per litre). There is an urgent need to adopt appropriate cost-effective technologies for arsenic removal from drinking water. This paper will discuss a number of treatment technologies such as coagulation/filtration, adsorption on activated alumina, separation by ion-exchange resin, adsorption on to iron oxides, adsorption/filtration by manganese greensand and iron oxide-coated sand for arsenic removal. The paper will also review recent studies on adsorption by titanium dioxide, nanoparticle media, zirconium and lanthanum compounds and biosorbents for arsenic removal. Results of studies conducted at the University of Regina on arsenic removal by iron oxide-coated sand and fungal biomass will be presented.
arsenic drinking water treatment technologies
Thiruvenkatachari VIRARAGHAVAN Pankaj CHOWDHURY
Faculty of Engineering, University of Regina, Regina, SK, Canada
国际会议
2007环境科学与技术国际会议(The 2007 International Symposium on Environmental Science and Technology)
北京
英文
2007-11-13（万方平台首次上网日期，不代表论文的发表时间）