PMID- 16257116 OWN - NLM STAT- MEDLINE DCOM- 20061204 LR - 20191210 IS - 0304-3894 (Print) IS - 0304-3894 (Linking) VI - 128 IP - 2-3 DP - 2006 Feb 6 TI - TiO2/UV/O3-BAC processes for removing refractory and hazardous pollutants in raw water. PG - 145-9 AB - TiO2/UV/O3-BAC (biological activated carbon) process was employed to treat raw water and compared to UV/O3-BAC process in its optimum parameters (3 mg/L ozone dosage with 15 min oxidation time and 15 min empty bed contact time in BAC). The results showed that the presence of TiO2 improved ozone utilization and biodegradability of the effluent. For the dissolved organic carbon (DOC) removal, TiO2/UV/O3-BAC was more efficient than UV/O3-BAC and its synergetic effect is more than that in UV/O(3)-BAC process. It was showed that small molecules with MW<3000 Da predominated in the raw water accounting for more than 56% DOC, they were increased after oxidation, accounting for more than 64% DOC. GC/MS analysis showed that TiO2/UV/O3-BAC process was effective in removing phthalate esters (PAEs) and persistent organic pollutants (POPs). PAEs' removal ratio reached more than 94% and reduced with the increase of the length of the alkyl side chains and the alkyl branch chains. TiO2/UV/O3-BAC process was also very effective in removing POPs. Polybromobiphenyls' removal rate reached more than 89% and decreased with the increase of substitutional bromines except for 2,2',5,5'-tetrabromobiphenyl, which can be completely removed. FAU - Li, Laisheng AU - Li L AD - School of Chemistry and Environment, South China Normal University, Guangzhou 510631, China. llsh99@mails.tsinghua.edu.cn FAU - Zhu, Wanpeng AU - Zhu W FAU - Zhang, Pengyi AU - Zhang P FAU - Zhang, Qiuyun AU - Zhang Q FAU - Zhang, Zulin AU - Zhang Z LA - eng PT - Comparative Study PT - Evaluation Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20051027 PL - Netherlands TA - J Hazard Mater JT - Journal of hazardous materials JID - 9422688 RN - 0 (Organic Chemicals) RN - 0 (Phthalic Acids) RN - 0 (Water Pollutants) RN - 15FIX9V2JP (titanium dioxide) RN - 16291-96-6 (Charcoal) RN - 66H7ZZK23N (Ozone) RN - 6O7F7IX66E (phthalic acid) RN - D1JT611TNE (Titanium) SB - IM MH - *Charcoal MH - Organic Chemicals/isolation & purification MH - Ozone/chemistry MH - Phthalic Acids/isolation & purification MH - *Titanium MH - *Ultraviolet Rays MH - Water Pollutants/*isolation & purification MH - Water Pollution/*prevention & control MH - Water Purification/*methods EDAT- 2005/11/01 09:00 MHDA- 2006/12/09 09:00 CRDT- 2005/11/01 09:00 PHST- 2004/11/29 00:00 [received] PHST- 2005/04/07 00:00 [revised] PHST- 2005/07/28 00:00 [accepted] PHST- 2005/11/01 09:00 [pubmed] PHST- 2006/12/09 09:00 [medline] PHST- 2005/11/01 09:00 [entrez] AID - S0304-3894(05)00445-0 [pii] AID - 10.1016/j.jhazmat.2005.07.050 [doi] PST - ppublish SO - J Hazard Mater. 2006 Feb 6;128(2-3):145-9. doi: 10.1016/j.jhazmat.2005.07.050. Epub 2005 Oct 27.