CAJ | 학술논문

通过芬顿试剂氧化、次氯酸钠氧化、过氧化氢和光催化氧化方法对化纤废水进行了处理,并通过COD检测、紫外可见光光度计等方法对氧化效果进行分析。结果显示自由基氧化对化纤废水的色度减小非常明显,能使其色度从800多倍减少到10倍以下,COD值从3 550 mg/L降解到100 mg/L以下,透光率的变化率达到98.59%。化学处理工艺的探讨发现在pH值4～6,搅拌速度为1 500 r/min,处理30 min就能使废水的COD去除率达到95.67%;pH为4时过氧化氢的氧化效果最佳。利用过氧化氢和次氯酸钠的氧化获得了自由基氧化处理此类废水的基本原理,即自由基氧化和链式反应的持续发生造成了有机物的降解,少量自由基的生成某种程度上刺激了高级氧化反应的深入,同时极少量自由基的交联可能会湮灭氧化反应,不同类自由基之间形成竞争,可能影响其氧化性能的发挥,因此需要通过控制反应物的种类、用量和有效分离反应中间产物,可以达到高级氧化反应处理此种废水的最佳效果。
통과분돈시제양화、차록산납양화、과양화경화광최화양화방법대화섬폐수진행료처리,병통과COD검측、자외가견광광도계등방법대양화효과진행분석。결과현시자유기양화대화섬폐수적색도감소비상명현,능사기색도종800다배감소도10배이하,COD치종3 550 mg/L강해도100 mg/L이하,투광솔적변화솔체도98.59%。화학처리공예적탐토발현재pH치4～6,교반속도위1 500 r/min,처리30 min취능사폐수적COD거제솔체도95.67%;pH위4시과양화경적양화효과최가。이용과양화경화차록산납적양화획득료자유기양화처리차류폐수적기본원리,즉자유기양화화련식반응적지속발생조성료유궤물적강해,소량자유기적생성모충정도상자격료고급양화반응적심입,동시겁소량자유기적교련가능회인멸양화반응,불동류자유기지간형성경쟁,가능영향기양화성능적발휘,인차수요통과공제반응물적충류、용량화유효분리반응중간산물,가이체도고급양화반응처리차충폐수적최가효과。
Through Fenton reagent oxidation,sodium hypochlorite oxidation,hydrogen peroxide and photo-catalytic oxidation techniques,industrial chemical fiber wastewater（ICFW） was treated.The treatment effects are analyzed with UV-Vis and COD determent.The results show that the chroma of ICFW can be decreased obviously using the advanced oxidation techniques and its data decreased from more than 800 times to 10 times and the COD of wastewater also reduced evidently from 1800 mg/L to below 100 mg/L.The optimum chemical process conditions is pH 4-6,stir speed 1500 r/min,stir time 30 min and COD removal rate of waste water would reach 95.67%.Using hydrogen peroxide and sodium hypochlorite to treat the wastewater can discover the basic principle of free radical oxidation and the chain reaction caused the degradation of organic matters.A few generate free radicals to some extent to stimulate the senior oxidation reaction,and the deepening of the very small amounts of free radicals crosslinking may annihilate the reaction.Hence through the control of reactant type,the quantity and effective separation reaction product can achieve to degrade organic compounds and realize the best treatment effect.