naa a22 4500 510750966 CHVBK 20180411083104.0 cr unu---uuuuu 180411e20131001xx s 000 0 eng 10.1007/s11270-013-1735-6 doi (NATIONALLICENCE)springer-10.1007/s11270-013-1735-6 DNAPL TCE Oxidation with Permanganate: Influence of the Phase Transfer Catalyst Pentyltriphenylphosphonium [Elektronische Daten] [Kyehee Kim, Yong Kim, Mirat Gurol] Dense nonaqueous phase (DNAPL) trichloroethylene (TCE) degradation by potassium permanganate (KMnO4) was investigated in the presence of the cationic surfactant pentyltriphenylphosphonium (PTPP) bromide, acting as a phase transfer catalyst. Series of batch tests were performed in 5.0-mL conical vials containing Milli-Q water and 1.0mM DNAPL TCE with initial permanganate concentrations ([MnO4 −]0) of 1.0, 2.0, 3.0, and 5.0mM, adding PTPP (0, 10, and 20mol% of permanganate, respectively). Chloride ion (Cl−) and MnO4 − in water samples were analyzed to observe MnO4 − consumption and TCE degradation over the elapsed time (0 to 90min). The calculated values of pseudo first-order rate constants for MnO4 − consumption indicated that the rate of MnO4 − depletion increased with higher mole percent PTPP. At experimental conditions of 1.0 and 2.0mM [MnO4 −]0, analyses of Cl− concentration showed that higher mole percent of PTPP induced greater Cl− release, indicating faster TCE oxidation. On the other hand, for 3.0 and 5.0mM [MnO4 −]0, the concentration of Cl− was lower with the presence of PTPP. This result indicated that MnO4 − had migrated further into the inner space of DNAPL, and consequently, the Cl− took a longer time to diffuse from DNAPL to an aqueous phase. Springer Science+Business Media Dordrecht, 2013 TCE nationallicence DNAPL nationallicence Permanganate nationallicence Phase transfer catalyst nationallicence Pentyltriphenylphosphonium nationallicence Kim Kyehee County of San Diego, Wastewater Management, 92131, San Diego, CA, USA aut Kim Yong School of Civil Engineering, Purdue University, 47907, West Lafayette, IN, USA aut Gurol Mirat Department of Environmental Engineering, Gebze Institute of Technology, 41400, Gebze, Turkey aut Water, Air, & Soil Pollution Springer Netherlands 224/10(2013-10-01), 1-7 0049-6979 224:10<1 2013 224 11270 https://doi.org/10.1007/s11270-013-1735-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-013-1735-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kim Kyehee County of San Diego, Wastewater Management, 92131, San Diego, CA, USA aut NATIONALLICENCE 700 1- Kim Yong School of Civil Engineering, Purdue University, 47907, West Lafayette, IN, USA aut NATIONALLICENCE 700 1- Gurol Mirat Department of Environmental Engineering, Gebze Institute of Technology, 41400, Gebze, Turkey aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/10(2013-10-01), 1-7 0049-6979 224:10<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer