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双语推荐:高级氧化技术

介绍了几种工业化的成套高级氧化技术设备(如纳米催化臭氧高级氧化一体机、多维电极电解催化氧化设备和紫外光催化氧化设备)的原理、特点和应用效果。3种高级氧化设备在处理难降解且有害有机物方面都具有独特的效果。分析了国内紫外光催化氧化技术落后于德国的原因,提出国内科技工作者应加强多领域合作,努力创造出世界领先水平的高级氧化设备,以彻底解决环境污染问题。
The principles, characteristics, and application effectiveness of several unitized and industrialized advanced oxidation equipments, including advanced nanometal-catalyzed ozone oxidation machine, multidimensional electrolytic catalytic oxidation equipment, and ultraviolet-light catalyzed oxidation equipment, were introduced. The reason why domestic ultraviolet light-catalyzed oxidation technology lags behind Germany was analyzed. It is proposed that the domestic scientists should strengthen cooperation in various areas and make efforts to create worldwide leading advanced oxidation equipment to completely solve the environmental pollution problem.
评述了芬顿氧化法、催化臭氧氧化法、光催化氧化法、电解催化氧化法、湿式空气氧化/湿式催化氧化法、超临界水氧化法、超声氧化法等各类目前认为最有实用价值的高级氧化技术的原理、特性和各自的优缺点,分析了各类高级氧化技术存在的问题和未来的发展趋势。认为金属催化臭氧氧化技术结合了臭氧氧化力强和金属催化剂易于制造、经久耐用、不需另加其他药剂和操作成本低的优点,是既经济又高效的氧化技术,也是未来较有发展前途的技术
The principles, characteristics, advantages, and disadvantages of the various most practical advanced oxidation technologies recently, for example, Fenton oxidation, catalytic ozone oxidation, photocatalytic oxidation, electrolytic catalytic oxidation, wet air oxidation and catalytic wet air oxidation, supercritical water oxidation, and supersonic oxidation, were reviewed and the problems existing in various advanced oxidation technologies and the development tendency in the further were analyzed. It is considered that the metal-catalyzed ozone oxidation is an economic and highly efficient oxidation technology combining the advantages of both ozone’s strong oxidation ability and metal catalyzer’ easy manufacturing, high durability, no need of adding other reagents, and low operation cost, showing a good development prospect in the future.
Fenton氧化技术高级氧化技术的一种,是处理难降解的废水是常用的技术之一。本文对Fenton氧化技术原理和影响因素进行分析,并对Fenton氧化技术在电镀废水、染料废水、造纸废水中的应用进行了研究。
Fenton oxidation method is a kind of advanced oxidation processes , which is usually used to treat refractory wastewater .This paper analysed the mechanism and factors of Fenton oxidation method .In addition , the present state of applications of Fenton oxidation method for electroplating wastewater , dyeing wastewater and paper making waste water were researched .

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高级氧化技术(AOP)是一种新兴的氧化处理技术,而羟基自由基(·OH)是高级氧化技术中一种重要的中间体,具有很强的氧化能力,是一种高效环保的氧化剂,近年将其用于烟气中有害气体氧化脱除的技术方法多有研究。列举了羟基自由基的检测方法,包括:电子自旋捕集法(ESR)、高效液相色谱法(HPLC)、分光光度法、荧光光度法(FD)等方法,这些方法对科研工作者检测羟基自由基提供了一定的技术支持,并对今后的研究方向起到一定的指导作用。
Advanced oxidation Processing( AOP)is a new kind of oxidation process technology. The hydroxyl radical is an important intermedium of this process. The hydroxyl radical is an efficient and environmental friendly oxidant which has great oxidability. lt lists some detections of hydroxyl radical,include Electron Spin Resonance ( ESR),Higher Performance Liquid Chromatography( HLPC ),Spectrophotometry,Fluorescence Spectropho-tometry( FD)and so on. These methods wil provide a technology assistant for detecting hydroxyl radicals and play an important role in the direction of the future research.

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普遍认为,邻苯二甲酸酯类物质(Phthalic Acid Esters,PAEs)是内分泌干扰物质(Endocrine Disrupting Chemicals,EDCs),被广泛应用于增塑剂、化妆品中,具有致畸性,致癌性,致突变性以及拟/抗雌激素活性、拟/抗甲状腺激素活性等内分泌干扰特性。邻苯二甲酸酯类物质很容易扩散到环境中,在土壤、大气、水环境中均有检出,是环境中常见污染物,严重威胁人体健康和生态环境,已经引起国内外的广泛关注。在综述邻苯二甲酸酯类物质的物理化学性质、毒性影响、国内外天然水体、地下水和生活污水中的污染现状的基础上,讨论消除水环境中PAEs污染的强化混凝、吸附、膜处理、生物处理和高级氧化技术高级氧化技术因其能够快速有效地去除饮用水和污水中不同种类的有机污染物而备受关注,且发展迅速。重点介绍了高级催化氧化法对水环境中PAEs的去除,包括催化湿式过氧化氧化过程,催化臭氧氧化过程,光催化氧化过程,超声波、微波辅助催化氧化过程以及高级纳米催化氧化过程。其中,Fenton催化氧化技术氧化过程中通过使用催化剂或协同紫外光等方式产生高度反应性羟基自由基,可无选择性地将PAEs完全降解为无毒无害的小分子物质,对PAEs的氧化去除效果最好。虽然在高级氧化过程中应用催化剂可大
Generally, phthalic acid esters(PAEs) are considered to be endocrine disrupting chemicals (EDCs). This substance is widely used in plasticizers, cosmetics, etc. PAEs would give rise to malformation, cancerization and mutation as well as possess quasi/anti-estrogen activity and quasi/resistance-thyroid hormone activity. PAEs could spread to the environment easily and be detected in the soil, air and water. They are common pollutants in the environment, which pose serious threats to both human health and the ecological environment. As a result, PAEs have attracted widespread attention at home and abroad. This paper summarizes the physi-chemical properties and toxic effects of PAEs and analyses the pollution status in natural water, groundwater and wastewater. The work also discusses many recent methods developed to remove PAEs, such as enhanced coagulation, adsorption, membrane treatment, biological treatment, advanced oxidation process, etc. Advanced oxidation technology has attracted m

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Fenton试剂氧化法是近几年来备受关注的一种废水处理高级氧化技术。本文论述了Fenton法、混凝-Fenton、光-Fenton法以及其它Fenton合成技术处理垃圾渗滤液的研究进展;分析了不同技术的原理、主要影响因素,为该技术在工程实践应用提供理论支持。
As a new advanced oxidation technologies(AOTs),Fenton oxidation process received much attention in recent years.The Fenton process,coagulation-Fenton,photo-Fenton process and another Fenton-combined process were discussed.The producing mechanism and the main factors were analyzed in order to provide theory support for engineering application.

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将传统气浮工艺和臭氧高级氧化技术相结合,应用于油罐清洗废水处理。通过试验对运行工况及处理效果进行了系统分析,形成了气浮-臭氧高级氧化含油废水工艺。该工艺可实现气浮除油、臭氧氧化和消毒的同步处理,去除COD等有机污染物同时,有明显的消毒效果,出水水质满足国标排放要求,适当处理可以作为中水回收使用。分级气浮效果稳定,废水中油品可回收利用。臭氧氧化及其产物分离同步实现,设备小型化、一体化设计,其结构有利于实现移动式处理。
Traditional gas floating process and the ozone senior oxidation technique were combined to treat tank cleaning wastewater. The operation condition and treatment effect were analyzed through tests, gas floating - ozone advanced oxidation process for treating oily waste water was formed. This process can realize gas floating oil removal,ozone oxidation and disinfection, remove organic pollutant. Effluent water quality can meet the national standard emission requirements. Hierarchical gas floating effect is stable;the oil in the waste water can be recycled. Ozone oxidation and its product separation can be realized synchronously.

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高级氧化法是一种新的比较有效的处理难降解有机废水的化学氧化技术。本试验采用Fenton高级氧化技术中的经典Fenton试剂的方法对机械加工行业含油废水进行处理,探讨了反应时间、pH值、H2O2和Fe2+投加量等因素对废水处理效果的影响,并确定了最佳处理条件。试验结果表明,处理废水量为50ml的情况下,最佳处理条件为:FeSO4·7H2O0.0556g,2mol/L过氧化氢溶液1ml,pH值为3,反应2h。COD去除率可达到75%以上。
Advanced oxidation process is a new kind ofeffective chem icaloxidation technology treatm entof refractory organic waste water.Removal of oil from the machining industry oily wastewater was used is a classic method of Fenton reagentthatis a Fenton advanced oxidation technology.This paperdiscusses the influence fac-tors of waste water treatm enton reaction tim e,pH value,H2O2 and Fe2+ dosage,and the optimum processing condi-tions were determined.The results show when the capacity of wast ewater treatm entis 50ml,the optim altreatment condition is FeSO 4·7 H2O 0.0556g,2m ol/L hydrogen peroxide solution 1m l,pH value of3,the reaction 2h.The removalrate of COD can reach above 75% .

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过硫酸盐氧化技术通过作用过程中产生过硫酸根自由基SO4-·进攻有机污染物,主要用于高浓度、难降解有机污染的处理,是一种新兴的高级氧化技术,其氧化电位(E0=2.5~3.1 V)比广泛研究的强氧化羟基自由基OH-·(E0=1.8~2.7 V)更强。针对目前常用的光、热、过渡金属3种过硫酸盐活化方式,分析了国内外污水处理特点及其应用进展,并指出未来过硫酸盐活化技术的主要研究方向及其技术改进需求。
Activating persulfate technology, as a new advanced oxidation method for disposing high-concentra?tion and refractory organic pollutants, releases sulfate radical(SO4-· ) to effectively degrade organic pollutants, whose sulfate radical(E0=2.5~3.1 V) is superior to the hydroxide radical OH-· (E0=1.8~2.7 V). This study dis?cusses activating persulfate, mainly including thermal persulfate, persulfate combined with transition metal ions, photo-chemical persulfate. Moreover, it analyzes the exiting problems and future developing directions for ad?vanced oxidation technology of activating persulfate.

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针对目前比较关注的致嗅物质污染问题,选用Fenton高级氧化技术研究了其对水中致嗅物质2-甲基异莰醇(2-MIB)的去除,探讨了Fenton反应对水中致嗅物质的去除效能及H2O2/Fenton摩尔比、Fe2+浓度、反应时间和溶液pH值各因素对氧化反应的影响。提出了Fenton氧化反应去除2-MIB的最佳反应条件。实验结果表明:Fenton高级氧化能有效去除水中的2-MIB。在H2O2/Fenton摩尔比为3.0、Fe2+浓度10 mg/L、反应时间10 min和溶液pH值为3.0时,去除效率达到97.9%。Fenton氧化反应的操作条件(浓度、pH值等)比较容易实现,因此Fenton氧化技术在实际污染处理中有很大的应用前景。
Aimed at the pollution problem of substance that cause odor in water has been greatly con-cerned by many people in recent days , the paper investigated the removal of odor-causing substance such as 2-methyl isobutyl(2-MIB) by Fenton advanced oxidation process ,and studied the effectiveness of the Fenton oxidation , the effect of various factors such H 2 O2:Fe2+molar ratio, Fe2+concentration , reaction time and solution pH on removal efficiency .The optimum condition of Fenton advanced oxidation process for removal of 2-MIB was proposed .In summary , Fenton oxidation is effective for removing 2-MIB.Re-moval efficiency reached as high as 97.9%at conditions of H2 O2/Fenton ratio of 3.0, Fe2+concentra-tion of 10 mg/L with reaction time of 10 min and solution pH of 3.0.Overall, these conditions are rela-tively easy to realize which means that Fenton process shows wider promise in the treatment of pollutant .