摘要
重点介绍了近年来各种除砷新技术的研究进展,内容包括:强化混凝、吸附、离子交换、膜法、预氧化除砷技术。评价了各除砷技术的优缺点与适用范围,并认为饮用水除砷技术的发展将呈现出以下特点:As(Ⅲ)和As(V)同步去除技术的开发;易于取得或制备、生物化学稳定性高、吸附容量大、选择性高、再生能力强的新型除砷吸附剂的开发;多种除砷技术联合,多重去除机理协同的除砷流程的开发;低能耗、低成本除砷技术的开发;生物除砷技术的开发。
The research progress on techniques for arsenic removal from drinking water was emphasisly introduced,the processes included： enhanced coagulation,adsorption,ion exchange,membrane technique and preoxidation.The advantages,disadvantages and application scope of those processes were analyzed,it was indicated that： the exploitation of techniques for arsenic removal from drinking water would focus on the following directions： techniques for simultaneous removal of As（Ⅲ） and As（V）;new absorbents which are easy to obtain and prepare,and have high biochemical stability,large adsorption capacity,good selectivity,strong regeneration ability;treatment processes which are combined with several arsenic removal techniques and mechanisms;techniques with lower energy consumption and cost;biological techniques.
出处
《工业用水与废水》
CAS
2007年第4期1-5,共5页
Industrial Water & Wastewater
基金
国家高技术研究发展计划(863)项目(2002AA601130)
国家科技攻关计划重大项目资助(2003A808A17)
关键词
饮用水
除砷
预氧化
吸附
离子交换
膜技术
drinking water
arsenic removal
pre-oxidation
adsorption
ion exchanges
membrane techniques
