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臭氧化乐动体育在线的概述与纳滤作为一种有效的手术治疗的帮助下从纺织工业染料废水泡沫柱反应堆

作者(年代):Sukanchan•帕立特

顽固的化学物质废水无法降解的主要和次要的治疗方法。所以需要三级处理过程,如臭氧化。一级处理包括絮凝和凝固在二级处理包括活性污泥法或通过滴过滤器过滤。三级处理过程包括臭氧化、膜过滤、吸附和其他高级氧化过程。臭氧化的重要性作为一个先进的氧化过程是由于臭氧化过程是环境友好的声音。我们的审查将描述该研究工作在该地区臭氧化和纳滤的主要染料废水的臭氧化从纺织工业废水。臭氧法被认为是有效的分解有机化合物含有碳碳双键,olefenic双键,乙炔的三键,芳香族化合物、酚类、多环芳烃、杂环、碳氮双键,carbonhydrogen债券,silicon-hydrogen和carbon-metal债券。一些有远见的工作已经完成的臭氧化活性染料在纺织工业的废水污水。合成染料和颜料废水的形式释放到环境,纺织、皮革和印刷行业引起严重的生态破坏。这些染料包括几个结构品种的酸性等染料,活性,基本的、偶氮,重氮、基于蒽醌染料和金属复杂。 Neither simple chemical nor biological treatment alone has proved adequate in decolorization and sufficient depletion of inorganic matter. Due to the inhibitory nature of many compounds for biological oxidation, the need for pretreatment by advanced oxidation process (AOP) has become essential. One of the AOP processes is ozonation, which is versatile and environmentally powerful. Ozonation of water is a well known technology and the strong oxidative properties of O3 and its ability to effectively oxidise many organic compounds in aqueous solution have been well documented. Ozone treatment of several types of wastewater has resulted in considerable COD reduction and has been used for treatment of dyes, phenols, pesticides etc. In recent years, ozonation is emerging as a potential process for color removal of dyes, since the chromophore groups with conjugated double bonds, which are responsible for colour can be broken down by ozone either directly or indirectly forming smaller molecules, thereby decreasing the colour of effluents. Due to its high electrochemical potential (2.08 V), O3 is the strongest oxidant available and applicable as compared to H2O2 (1.78 V) and can react with several classes of compounds through direct or indirect reaction. Unlike other oxidising agents such as Cl2, oxidation with O3 leaves no toxic residues that have to be removed or disposed. Studies carried out by several scientists show that ozone generally produces non-toxic end products which are converted to CO2 and H2O depending on the conditions.Nanofiltration is very effective and the next generation science and technology. Our aim, objective and vision is to delineate the major research work done in the field of ozonation in order to project it as a powerful advanced oxidation process and also describe significant work done in the field of nanofiltration of dyes.