湿式空气氧化处理高浓度H酸废水的研究

摘要本文以空气为氧源 ,研究了不同温度、空气压力和pH值对高浓度H酸废水降解效果及色度去除率的影响。结果表明 ,在 2 0 0℃ ,空气压力为 5 0MPa ,pH值为 7 5的条件下 ,经过 6 0min的停留时间 ,1 0 0 0 0mg L的H酸废水COD的去除率可达到88 7% ,色度降低 96 8%。经过GC MS分析 ,氧化后降解百分率超过 86 8%的主要剩余产物为乙酸 ,无H酸毒性组分存在。在 1 71℃至 2 0 0℃温度范围内 ,WAO氧化H酸废水降解动力学的一级反应速度方程可分为两个阶段。

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	陈拥军
	窦和瑞
	孙承林
	王贤高
	杜书
	杜鸿章
	高希彦
	吴鸣

关键词：湿式空气氧化 H酸一级反应动力学废水处理

Abstract： In this paper,COD removal and colour removal of H-acid model waste water under wet air oxidation using a gaseous source of air with different temperature,air pressure and pH value are investigated.The results show that COD removal and colour removal of 10 000 mg/L H-acid waste water under 200℃,5 0MPa air pressure and 7 5 pH value after 60min retention time are 88 7% and 95 2% respectively.According to GC/MS analysis,the main residual component is acetic acid after COD removal reaches above 86 8% under wet air oxidation and there is no toxic H-acid component existing in the residual products.The First-order reaction dynamic model of WAO of H acid waste water includes two steps between experimental temperature 171℃ and 200℃.

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Received 2002-07-15; published 2002-07-15

引用本文:

陈拥军,窦和瑞,孙承林,王贤高,杜书,杜鸿章,高希彦,吴鸣.湿式空气氧化处理高浓度H酸废水的研究[J]. 化学工业与工程, 2002,19(4): 292-296

CHEN Yong-jun 1,DOU He-rui 1,SUN Cheng-lin 1,WANG Xian-gao 1, DU Shu 1,DU hong-zhang 1,GAO Xi-yan 2,WU Ming 1 .The Experimental Study on Wet Air Oxidation of High Concentration H-Acid Waste Water[J]. Chemcial Industry and Engineering, 2002,19(4): 292-296