HOMOGENEOUSLY CATALYZED OXIDATION FOR THE DESTRUCTION OF AQUEOUS ORGANIC WASTES

被引：5

作者：

LEAVITT, DD

HORBATH, JS

ABRAHAM, MA

机构：

[1] Department of Chemical Engineering, University of Tulsa, Tulsa, Oklahoma

来源：

ENVIRONMENTAL PROGRESS | 1990年 / 9卷 / 04期

关键词：

D O I：

10.1002/ep.670090416

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Several organic species, specifically atrazine, 2,4‐dichlorophenozyacetic acid, and biphenyl, were converted to CO2 and other non‐harmful gases through oxidation catalyzed by inorganic acid. Nearly complete conversion was obtained through homogeneous liquid‐phase oxidation with ammonium nitrate. The kinetics of reaction have been investigated and indicate parallel oxidation and thermal degradation of the oxidant. This results in a maximum conversion at an intermediate temperature. Increasing oxidant concentration accelerates the rate of conversion and shifts the location of the optimum temperature. Reaction at varying acid concentration revealed that conversion increased with an approximately linear relationship as the pH of the solution was increased. Conversion was increased to greater than 99% through the addition of small amounts of transition metal salts demonstrating the suitability of a treatment process based on this technology for wastestreams containing small quantities of heavy metals. Copyright © 1990 American Institute of Chemical Engineers (AIChE)

引用

页码：222 / 228

页数：7

共 9 条

[1] Freeman H.M., Olexsay R.A., Oberacker D.A., Mournighan R.E., Thermal Destruction of Hazardous Waste—A State‐of‐the‐Art Review, J. Hazard. Mater., 14, (1987)
[2] Joshi J.B., Shah Y.T., Parulekar S.J., Engineering Aspects of the Treatment of Aqueous Waste Streams, Indian Chem. Eng., 27, 2, (1985)
[3] Blackburn J.W., Troxler W.L., Prediction of the Fates of Organic Chemicals in a Biological Treatment Process—An Overview, Environ. Prog., 3, 3, (1984)
[4] Brady B.O., Kao C.P.C., Dooley K.M., Knopf F.C., Gambrell R.P., Supercritical Extraction of Toxic Organics from Soil, Ind. Eng. Chem. Res., 26, 2, (1987)
[5] Moses J.M., Abrishamian R., (1988)
[6] Kim Y.K., Walters H.K., Hatfield J.D., Oxidation Kinetics of the Carbon Compounds in Concentrated Wet‐Process Phosphoric Acid, Ind. Eng. Chem. Prod. Res. Dev., 22, 2, (1983)
[7] Leavitt D.D., Abraham M.A., (1988)
[8] Leavitt D.D., Abraham M.A., Acid‐Catalyzed Oxidation of 2,4‐Dichlorophenoxyacetic Acid by Ammonium Nitrate in Aqueous Solution, Env. Sci. Technol., 24, 4, (1990)
[9] Moshkovich F.B., Podshivalova G.N., Sidorina I.Y., Strizhevskii I.I., Thermal Decomposition of Ammonium Nitrate at Temperatures Below the Melting Point, Zhurnal Prikladnoi Khimii, 55, 4, pp. 901-903, (1982)

← 1 →