Title :
Ozone treatment of persistent organic chemical wastewater
Author :
Tanaka, J. ; Hirano, K. ; Toyoda, A. ; Taira, T. ; Koito, T. ; Hidaka, M.
Author_Institution :
Organo Corp., Saitama, Japan
Abstract :
We developed an ozone treatment process for wastewater containing persistent organic chemicals that are not easily treated by conventional processes. These include alkylbenzenesulfonic acids (ABS), phenol, and dimethylsulfoxide (DMSO). We confirmed that there are different optimal pH conditions with respect to the efficiency of ozone treatment for different types of organic compounds. The potential of the process was convincingly demonstrated; with proper pH adjustment it is extremely effective. Organic compounds, for which biological treatment is not suitable, can be converted to biologically degradable compounds without generating hazardous byproducts. Ozone treatment can be extremely cost-effective, particularly, for high-level wastewater
Keywords :
environmental factors; integrated circuit manufacture; ozone; waste disposal; water treatment; O3; alkylbenzenesulfonic acids; biologically degradable compounds; dimethylsulfoxide; high-level wastewater; optimal pH conditions; ozone treatment process; persistent organic chemical wastewater; phenol; Chemical processes; Costs; Incineration; National electric code; Organic chemicals; Organic compounds; Poles and towers; Satellite broadcasting; Thermal degradation; Wastewater treatment;
Conference_Titel :
Semiconductor Manufacturing Conference Proceedings, 1999 IEEE International Symposium on
Conference_Location :
Santa Clara, CA
Print_ISBN :
0-7803-5403-6
DOI :
10.1109/ISSM.1999.808789
