PMID- 11723931 OWN - NLM STAT- MEDLINE DCOM- 20020328 LR - 20131121 IS - 1001-0742 (Print) IS - 1001-0742 (Linking) VI - 13 IP - 4 DP - 2001 Oct TI - Modeling of organic pollutant destruction in a stirred-tank reactor by ozonation. PG - 449-52 AB - Destruction of organic contaminants in water by ozonation is a gas-liquid process which involves ozone mass transfer and fast irreversible chemical reactions. Ozonation reactor design and process optimizing require the modeling of the gas-liquid interactions within the reactor. In this paper a theoretical model combining the fluid dynamic and reaction kinetic parameters is proposed for predicting the destruction rates of organic pollutants in a semi-batch stirred-tank reactor by ozonation. A simple expression for the enhancement factor as our previous work has been applied to evaluate the chemical mass transfer coefficient in ozone absorption, 2,4-dichlorophenol (2,4-DCP) and 2,6-DCP or their mixture are chosen as the model compounds for simulating, and the predicted DCP concentrations are compared with some measured data. FAU - Cheng, J AU - Cheng J AD - College of Chemical Engineering, South China University of Technology, Guangzhou 510641, China. FAU - Yang, Z R AU - Yang ZR FAU - Chen, H Q AU - Chen HQ FAU - Kuo, C H AU - Kuo CH FAU - Zappi, E M AU - Zappi EM LA - eng PT - Journal Article PL - Netherlands TA - J Environ Sci (China) JT - Journal of environmental sciences (China) JID - 100967627 RN - 0 (Anthelmintics) RN - 0 (Chlorophenols) RN - 0 (Gases) RN - 0 (Organic Chemicals) RN - 0 (Oxidants, Photochemical) RN - 0 (Water Pollutants) RN - 66H7ZZK23N (Ozone) RN - Q7E9K52W7E (2,6-dichlorophenol) RN - R669TG1950 (2,4-dichlorophenol) SB - IM MH - Absorption MH - Anthelmintics/chemistry MH - Chlorophenols/chemistry MH - Gases MH - *Models, Theoretical MH - Organic Chemicals MH - Oxidants, Photochemical/*chemistry MH - Ozone/*chemistry MH - Waste Disposal, Fluid MH - Water Pollutants/*analysis EDAT- 2001/11/29 10:00 MHDA- 2002/03/29 10:01 CRDT- 2001/11/29 10:00 PHST- 2001/11/29 10:00 [pubmed] PHST- 2002/03/29 10:01 [medline] PHST- 2001/11/29 10:00 [entrez] PST - ppublish SO - J Environ Sci (China). 2001 Oct;13(4):449-52.