四川环境
四川環境
사천배경
2011年
6期
133-138
,共6页
高级氧化技术%强化超声%超声波组合%技术组合
高級氧化技術%彊化超聲%超聲波組閤%技術組閤
고급양화기술%강화초성%초성파조합%기술조합
Advanced oxidation process%ultrasonic enhancement technology%combination of ultrasound%combined technology
作为高级氧化技术,超声空化产生元选择性的强氧化性自由基,具有较大优势,但由于超声空化机理的特点使得有机物的完全矿化受到限制,而提高超声效率的常见方法有:优化频率、声强,与其他技术组合等。文章主要从超声波参数,添加剂,超声-高级氧化技术、超声-活性炭、超声-微生物处理、超声-石墨、超声-气浮、超声-膜处理、超声-混凝、超声-消毒技术等方面综述了超声强化技术原理及其在水处理中的应用研究进展。其中研究较少的方法有间歇超声、多频超声、充入多种气体以及超声与各工艺组合,如超声与活性炭、等离子体技术等组合,这些强化技术都-定程度的强化了超声效果。有些组合暂时未用于水处理,但经过完善也将大大催进水处理事业的发展。虽然超声波具有较大优势,但是由于其成本高,反应器生产技术限制。超声波大规模用于实际生产还需要较长-段时间。
作為高級氧化技術,超聲空化產生元選擇性的彊氧化性自由基,具有較大優勢,但由于超聲空化機理的特點使得有機物的完全礦化受到限製,而提高超聲效率的常見方法有:優化頻率、聲彊,與其他技術組閤等。文章主要從超聲波參數,添加劑,超聲-高級氧化技術、超聲-活性炭、超聲-微生物處理、超聲-石墨、超聲-氣浮、超聲-膜處理、超聲-混凝、超聲-消毒技術等方麵綜述瞭超聲彊化技術原理及其在水處理中的應用研究進展。其中研究較少的方法有間歇超聲、多頻超聲、充入多種氣體以及超聲與各工藝組閤,如超聲與活性炭、等離子體技術等組閤,這些彊化技術都-定程度的彊化瞭超聲效果。有些組閤暫時未用于水處理,但經過完善也將大大催進水處理事業的髮展。雖然超聲波具有較大優勢,但是由于其成本高,反應器生產技術限製。超聲波大規模用于實際生產還需要較長-段時間。
작위고급양화기술,초성공화산생원선택성적강양화성자유기,구유교대우세,단유우초성공화궤리적특점사득유궤물적완전광화수도한제,이제고초성효솔적상견방법유:우화빈솔、성강,여기타기술조합등。문장주요종초성파삼수,첨가제,초성-고급양화기술、초성-활성탄、초성-미생물처리、초성-석묵、초성-기부、초성-막처리、초성-혼응、초성-소독기술등방면종술료초성강화기술원리급기재수처리중적응용연구진전。기중연구교소적방법유간헐초성、다빈초성、충입다충기체이급초성여각공예조합,여초성여활성탄、등리자체기술등조합,저사강화기술도-정정도적강화료초성효과。유사조합잠시미용우수처리,단경과완선야장대대최진수처리사업적발전。수연초성파구유교대우세,단시유우기성본고,반응기생산기술한제。초성파대규모용우실제생산환수요교장-단시간。
As an advanced oxidation process, ultrasonic cavitation creating radicals, which have great advantage of nonselective strong oxidization. However it limits the complete mineralization of organics resulting from its characteristics. The common ways to improve the ultrasonic efficiency includes optimizing ultrasonic frequency and intensity and some other combined technologies else. This article mainly summarizes the mechanism and application progresses in application of ultrasonic enhancement technology in water treatment from the respects such as parameters of the ultrasound, additives, ultrasonic advanced oxidation technology, ultrasonic activated carbon, ultrasonic microbial treatment, ultrasonic graphite, ultrasonic flotation, ultrasonic membrane, ultrasonic coagulation and ultrasonic disinfection, which includes some seldom researched respects such as intermittent ultrasound, multi-frequency ultrasound, process by adding multi-gas as well as ultrasound combining with other processes such as ultrasound-activated carbon and ultrasound-plasma technology which strengthen the ultrasonic technology. Although some of them haven't been used in water treatment, with development and improvement, they will promote the development of the water treatment. In spite that the ultrasonic technology has great advantage in water treatment, it is restricted by its high cost and limitation of reactor manufacture. Therefore, there is stiff a long way to widely apply ultrasonic technology in water treatment.