摘要
由于自然原因和近年来我国氟工业生产的增多,一些地区地下水氟含量超标,导致地方性氟病频发,对人们的身体健康造成危害,偏远农村地区尤为严重。目前处理水中氟离子的主要方法有混凝沉淀法、石灰沉淀法、离子交换法、电凝聚法、反渗透法、吸附法。相比其他方法,吸附法在工业成本、除氟效率、工艺操作等方面具有优势。着重介绍生物吸附法除氟,并对除氟机理进行简要探讨,说明生物吸附除氟具有可行性。针对高氟地下水的处理问题提出几点建议,展望生物吸附在未来的进一步发展。
Due to natural reasons and the increase in the production of fluorine industry in China in recent years, the fluoride content of groundwater in some areas exceeds the standard, leading to frequent occurrence of endemic fluorosis, which is harmful to people’s health, especially in remote rural areas. At present, some of the main methods for treating fluoride ions in water include coagulation sedimentation, lime precipitation, ion exchange, electrocoagulation, reverse osmosis, and adsorption. Compared with other methods, the adsorption method has advantages in terms of in-dustrial cost, fluorine removal efficiency, and process operation. This paper emphatically introduces the defluoridation by biosorption and briefly discusses its mechanism, which shows the feasibility of biosorption for defluoridation. Several suggestions for the treatment of high-fluorine groundwater are proposed, and the further development of biosorption in the future is expected.
出处
《可持续发展》
2019年第1期17-24,共8页
Sustainable Development
基金
北京市教委联合共建基金项目支持(No.00012245)。
