PMID- 17990546 OWN - NLM STAT- MEDLINE DCOM- 20081010 LR - 20161018 IS - 0250-3301 (Print) IS - 0250-3301 (Linking) VI - 28 IP - 9 DP - 2007 Sep TI - [Treatment of 4, 4'-dBB in aqueous solution using O3/H2O2 system and its synergetic kinetics]. PG - 1998-2003 AB - A comparative study of O3 alone and O3/H2O2 was made to evaluate their respective effectiveness for removal of persistent organic pollutants (POPs) from water with 4, 4'-dibro minated biphenyl (4, 4'-DBB) as the model pollutant, and UV254 was used as the surrogate parameter for TOC and DOC. It was found that both processes enhanced the removal rate. Especially, it has been made a further enhancement of the removal of 4, 4'-DBB as H2O2 was added under the alkaline-condition. The final removal rate of 4 mg/L 4, 4'-DBB solution reached 78.0% after reacting for 270 min, while the UV254 value varies with the removal rate and reached 76.9%-77.8% ultimately. It means that the total organic carbon has been removed obviously. Two kinds of solution of different concentration with the same amount of oxidant reacting for the same time have been compared with each other and the results showed that the higher the initial concentration was, the smaller the removal rate was, however, the more the absolute amount could be removed. It was also found that 4, 4'-DBB's removal followed pseudo-first order reaction and the promoted factor f for 4, 4'-DBB removal rate constant was about 1.54. FAU - Wang, Lei AU - Wang L AD - Institute of Sonochemical Engineering, Nanjing University of Technology, Nanjing 210009, China. FAU - Chen, Jin-feng AU - Chen JF FAU - Lu, Xiao-ping AU - Lu XP FAU - Han, Ping-fang AU - Han PF LA - chi PT - Comparative Study PT - English Abstract PT - Journal Article PL - China TA - Huan Jing Ke Xue JT - Huan jing ke xue= Huanjing kexue JID - 8405344 RN - 0 (4,4'-di-tert-butylbiphenyl) RN - 0 (Biphenyl Compounds) RN - 0 (Water Pollutants, Chemical) RN - 66H7ZZK23N (Ozone) RN - BBX060AN9V (Hydrogen Peroxide) SB - IM MH - Biphenyl Compounds/*chemistry MH - Hydrogen Peroxide/*chemistry MH - Kinetics MH - Oxidation-Reduction MH - Ozone/*chemistry MH - Water Pollutants, Chemical/*chemistry MH - Water Purification/*methods EDAT- 2007/11/10 09:00 MHDA- 2008/10/11 09:00 CRDT- 2007/11/10 09:00 PHST- 2007/11/10 09:00 [pubmed] PHST- 2008/10/11 09:00 [medline] PHST- 2007/11/10 09:00 [entrez] PST - ppublish SO - Huan Jing Ke Xue. 2007 Sep;28(9):1998-2003.