Advanced SearchSearch Tips
A Comparative Study on Adsorption Characteristics of PCBs in Transformer Oil Using Various Adsorbents
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
A Comparative Study on Adsorption Characteristics of PCBs in Transformer Oil Using Various Adsorbents
Ryoo, Keon Sang; Hong, Yong Pyo; Ahn, Chun Ju;
  PDF(new window)
The aim of the present study is to explore the possibility of utilizing loess and fly ash as well as activated carbon for the adsorptive removal of PCBs in transformer oil. Here, we investigated the effect of various factors such as temperature (5, 25, 55), contact time (30 min-3 day) and adsorbent does (1, 2.5, 5, 10 g) in detail. It was found that PCBs adsorption rate from transformer oil by activated carbon is more favored than loess at the equilibrium time of 60 minutes. The equilibrium data for both activated carbon and loess is fitted well to the Freundlich isotherm model. The rate constant and activation energy of PCBs adsorption in transformer oil on each adsorbent was analyzed by fitting a kinetic model at 5, 25 and . From the thermodynamic parameters, the PCBs adsorption process for transformer oil/activated carbon and loess system is spontaneous and endothermic in nature.
Transformer oil;PCBs;Activated carbon;Loess;Fly ash;
 Cited by
Schulz, D. E.; Petrick, G.; Uuinker, J. C. Environ. Sci. Technol. 1989, 23, 852. crossref(new window)

Sedlak, D. L.; Andren, A. W. Environ. Sci. Technol. 1991, 25, 1419. crossref(new window)

Wu, W.; Xu, J.; Zhao, H.; Zhang, Q.; Liao, S. Chemosphere 2005, 60, 944. crossref(new window)

Gschwend, P. M.; Wu, S. Environ. Sci. Technol. 1985, 19, 90. crossref(new window)

WHO In Polychlorinated biphenyls and Terphenyls; WHO: Environmental Health Criteria Series 140; 1993; p 683.

Liu, X.; Yu, G. Chemosphere 2006, 63, 228. crossref(new window)

Manzano, M. A.; Peralers, J. A.; Sales, D.; Quiroga, J. M. Chemosphere 2004, 57, 645. crossref(new window)

Ning, H.; Myers, T. E. Chemosphere 2002, 46, 477. crossref(new window)

Ryoo, K. S.; Kapila, S.; Puri, R. K.; Yanders, A. F.; Elseewi, A. A. Chemosphere 1992, 25, 1569. crossref(new window)

Sun, Y.; Takaoka, M.; Takeda, N.; Matsumoto, T.; Oshita, K. Chemosphere 2006, 65, 183. crossref(new window)

Gomez, V.; Larrenchi, M. S. Callao, M. P. Chemosphere 2007, 69, 1151. crossref(new window)

Sarkar, M.; Acharya, P. K. Wastemanagement 2006, 26, 559.

Nollet, H.; Roles, M.; Lutgen, P.; Meeren P. V.; Verstraete, W. Chemosphere 2003, 53, 655. crossref(new window)

Safe, S. Crit. Rev. Toxicol. 1984, 13, 319. crossref(new window)

Safe, S. Annu. Rev. Pharmacol. Toxicol. 1986, 26, 371. crossref(new window)

Weber, W. J. Physicochemical Processes for Water Quality Conrtrol; John Wiley and Sons: New York, 1972.