计算机与应用化学
計算機與應用化學
계산궤여응용화학
COMPUTERS AND APPLIED CHEMISTRY
2013年
5期
507-510
,共4页
唐庆丽%郭卫民%申哲民%王文华
唐慶麗%郭衛民%申哲民%王文華
당경려%곽위민%신철민%왕문화
臭氧氧化%反应动力学%TOC去除率%有机污染物
臭氧氧化%反應動力學%TOC去除率%有機汙染物
취양양화%반응동역학%TOC거제솔%유궤오염물
ozonation%reaction kinetic%TOC removal ratio%organic pollutants
臭氧氧化是一种应用普遍的高效污水处理工艺。本文实验研究了硝基苯、苯胺、1,10-菲啰啉、邻氯苯酚、对二甲氨基苯甲醛、苯磺酸、对氨基苯磺酸、3-苯丙酸、亚甲基蓝、罗丹明B、间甲酚紫和苯酚等12种有机污染物化合物的臭氧氧化降解规律，探讨了有机物污染物臭氧(O3)氧化降解的反应动力学特征。实验结果表明：在连续通入1 h 24 mg·L-1·min-1的O3之后， TOC去除率在碱性条件下明显优于酸性和中性条件，在酸性和中性条件下去除率介于10%~50%之间，而在碱性条件下，去除率基本介于35%~50%之间，初始反应过程符合一级动力学反应。12种有机物O3氧化降解的平均动力学速率常数KTOC在酸性、中性和碱性条件下分别为0.024±0.013、0.024±0.014和0.032±0.015，TOC 降解速率在碱性条件下较酸性条件下和中性条件下提高了67%；在相同的pH条件下，不同物质的降解速率也有明显的差异，但是各种物质降解速率趋势变化不大，3个pH下，苯磺酸、3-苯丙酸和1,10-菲啰啉降解得最慢，总体降解趋势与pH和物质的本身结构呈现出很大的相关性。
臭氧氧化是一種應用普遍的高效汙水處理工藝。本文實驗研究瞭硝基苯、苯胺、1,10-菲啰啉、鄰氯苯酚、對二甲氨基苯甲醛、苯磺痠、對氨基苯磺痠、3-苯丙痠、亞甲基藍、囉丹明B、間甲酚紫和苯酚等12種有機汙染物化閤物的臭氧氧化降解規律，探討瞭有機物汙染物臭氧(O3)氧化降解的反應動力學特徵。實驗結果錶明：在連續通入1 h 24 mg·L-1·min-1的O3之後， TOC去除率在堿性條件下明顯優于痠性和中性條件，在痠性和中性條件下去除率介于10%~50%之間，而在堿性條件下，去除率基本介于35%~50%之間，初始反應過程符閤一級動力學反應。12種有機物O3氧化降解的平均動力學速率常數KTOC在痠性、中性和堿性條件下分彆為0.024±0.013、0.024±0.014和0.032±0.015，TOC 降解速率在堿性條件下較痠性條件下和中性條件下提高瞭67%；在相同的pH條件下，不同物質的降解速率也有明顯的差異，但是各種物質降解速率趨勢變化不大，3箇pH下，苯磺痠、3-苯丙痠和1,10-菲啰啉降解得最慢，總體降解趨勢與pH和物質的本身結構呈現齣很大的相關性。
취양양화시일충응용보편적고효오수처리공예。본문실험연구료초기분、분알、1,10-비라람、린록분분、대이갑안기분갑철、분광산、대안기분광산、3-분병산、아갑기람、라단명B、간갑분자화분분등12충유궤오염물화합물적취양양화강해규률，탐토료유궤물오염물취양(O3)양화강해적반응동역학특정。실험결과표명：재련속통입1 h 24 mg·L-1·min-1적O3지후， TOC거제솔재감성조건하명현우우산성화중성조건，재산성화중성조건하거제솔개우10%~50%지간，이재감성조건하，거제솔기본개우35%~50%지간，초시반응과정부합일급동역학반응。12충유궤물O3양화강해적평균동역학속솔상수KTOC재산성、중성화감성조건하분별위0.024±0.013、0.024±0.014화0.032±0.015，TOC 강해속솔재감성조건하교산성조건하화중성조건하제고료67%；재상동적pH조건하，불동물질적강해속솔야유명현적차이，단시각충물질강해속솔추세변화불대，3개pH하，분광산、3-분병산화1,10-비라람강해득최만，총체강해추세여pH화물질적본신결구정현출흔대적상관성。
Kinetics of ozonation degradation of 12 organic pollutants were investigated, which were Nitrobenzene, Aniline, 1,10-Phenanthroline monohydrate, O-chlorophenol, P-dimethylaminobenzaldehyde, Benzenesulfonic acid, Hydrocinnamic acid, P-aminobenzene sulfonic acid, Methylene Blue trihydrate, Rhodamine B, M-Cresol purple and Phenol. It was shown by the results that after continuously infusing 24mg·L-1·min-1 of O3 into the organic solution about 1h, the TOC removal ratio in the basic conditions had an advantage over in the acidic and in the neutral conditions. In acidic and neutral conditions, the TOC removal ratios were between 10%-50%, however, in the basic conditions between 35%-50%. And the initial reaction process was in accordance with the first-order kinetic reaction equation. In the acidic condition、the neutral condition and the basic condition, the average reaction ratio constants (KTOC) of 12 kinds of materials were 0.024±0.013、0.024±0.014 and 0.032±0.015 respectively. It was shown that under different pH values, the degradation rate was different, and the KTOC in the basic condition was raised by 67%than in the acid conditions, and the neutral conditions;in the same pH condition, the degradation rate of different substances was different, but the trend of the degradation rate of the 12 substances was similar. In three pH cases,the degradation rate of Benzenesulfonic acid,Hydrocinnamic acid and 1,10-Phenanthroline monohydrate were the slowest. The tendency of degradation presented a great correlation with pH values and the structure of the substances.
