1-Yapar S, Ozbudak V, Dias A, Lopes A. Effect of adsorbent concentration to the adsorption of phenol on hexadecyl trimethyl ammonium-bentonite. J Hazard Mater 2005 ;121(1-3):135-9.
2-Bayramoglu G, Arica MY. Enzymatic removal of phenol and p-chlorophenol in enzyme reactor: horseradish peroxidase immobilized on magnetice beads. J Hazard Mater 2008; 156(1-3):148-55
3-Joyce TW. Design criteria for phenol treatment by plastic media tricking filter, ALCHE. Symposium Series 1997;39(17):123-31
4-Lin SH, Cheng MJ. Adsorption of phenol and m-cholorophenol on organobentonites and repeated thermal regeneration.
Waste Manage 2002;22(6):595-603
5-Mittal A. Removal of the dye amaranth from wastewater using hen feathers as potential adsorbent. Elect J Environ Agri Food Chem 2006;5(2):129-35.
6-De la Rosa G, Reynel-Avila HE, Bonilla A, Martinez AL. Word Academy of Science. Eng Technol 2008;47:394-402.
7-Mittal A. Use of hen feathers as potential adsorbent for the removal of a hazardous dye, Brilliant Blue FCF, from wastewater. J Hazard Mater 2006; 128(2-3):233-9.
8-Banat FA, Al-Asheh S. Biosorption of phenol by chicken feathers. Environ Eng Policy 2000;2(2):85-90.
9-Mahvi AH, Maleki A, Eslami A. Potential of rice husk and rice husk ash for phenol removal in aqueous systems. Am J Appl Sci 2004;1(4):321-6.
10-Banat FA, Al-Bashir B, Al-Asheh S, Hayajneh O. Adsorption of phenol by bentonite. Env Pollut 2000; 107(3):391-8.
11-Khalid N, Ahmad S, Toheed A, Ahmad J. Potential of rice husks for antimony removal. Appl Radiat Isot 2000;52(1):31-8.
12-Halhouli KA, Drawish NA, Al-Dhoon Naser M. . Effects of pH and inorganic salt on the adsorption of phenol from aqueous systems on activated decolorizing charcoal. Separ Sci Technol 1995;30(17):181-90.
13-Vimal C, Srivastava S, Mahadeva M, Indra D, Basheswar Prasadm Indra M, Mishra S. Adsorptive removal of phenol by bagasse fly ash and activated carbon: Equilibrium, kinetics and thermodynamics. J Coll Surf 2006;5(2):89–104.
14-Mittal A, Mittal J, Kurup L. Utilization of hen feathers for the adsorption of Indigo Carmine from simulated effluents. J Environ Prot Sci 2007;146:92-100.
15-Vazquez G, Gonzalez J, Freire M, Calvo M, Antorrena G. Determination of the optimal conditions for the adsorption of cadmium ions and phenol on chestnut (castanea sativa) shell. Globa NEST J 2009;11(2):196-204.
16-Nagda GK, Diwan AM, Ghole VS. Potential of tendu leaf refuse for phenol removal in aqueous systems Appl Ecol Environ Res 2007;5(2):1-19.
17-Mishra S, Bhattacharya J. Batch studies on phenol removal using leaf activated carbin. Malaysian J Chem 2007;9(1):1-15.
18-Potgieter JH, Bada SO. Potgieter SS. Adsorptive removal of various phenols from water by South African coal fly ash. Water SA 2009;35 (1):89-96.
19-Aksu A,
Açikel U, Kabasakal E, Tezer S. Equilibrium modeling of individual and simultaneous biosorption of chromium (VI) and nickel (II) onto dried activated sludge. Water Res 2002;36(12):3063-73.
20-Rengaraj S,
Moon SH,
Sivabalan R,
Arabindoo B,
Murugesan V. Agricultural solid waste for the removal of organics: adsorption of phenol from water and wastewater by palm seed coat activated carbon. Waste Manage 2002;22 (5):543-8.
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