References
[1]. Aksu, Z., Ozer, D., Ekiz, H.I., Kutsal, T., Calar.A.
(1996).
“Investigation of Biosorption of Chromium (VI) on
Cladophora Crispata in Two-Staged Batch Reactor”,
Environ.Technol., Vol.17, pp. 215-220.
[2]. Alam, M.Z., Muyibi, S.A., Toramae, J. (2007).
“statistical optimization of adsorption processes for
removal of 2, 4-dichlorophenol by activated carbon derived from oil palm
empty fruit bunches”, J.Environ.Sci.
Vol.19, pp. 674-677.
[3]. Celik, A., Demirabas, A. (2005). “Removal of
heavy
metal ions from aqueous solutions via adsorption onto
modified lignin wastes”, Energy sources, Vol. 27, pp. 1167-
1177.
[4]. Chakravathi, A.K., Chowadary, S.B., Chakrabarty, S.,
Chakrabarty, T., Mukherjee, D.C. (1995). “Liquid
membrane multiple emulsion process of chromium (VI)
separation from waste waters”, Colloids,Surf.A, Vol.103,
pp. 59-71.
[5]. Dakiky, M., Kharmics, M., Manassra, A., Mereb, M.
(2002). “Selective adsorption of chromium (VI) in industrial
waste water using low cost abundantly available
adsorbents”, Adv. Environ. Res., Vol. 6, pp. 533-537.
[6]. Huang, S.D., Fann, C.F., Hsiech, H.S. (1982).
“Foam
separation of chromium (VI) from aqueous solution”,
J.Colloid.Interface.Sci., Vol. 89, pp. 504-513.
[7]. John, M.K., Laerhoven, V., Cross, C.H. (1975).
“Cadmium, Lead and Zinc accumulate in soils nearer a
smother complex”, Environ.Lett., Vol. 10, pp. 25-35.
[8]. Kannan, K. (1995). Fundamentals of Environmental
Pollution, S chand Co Limited, New Delhi.
[9]. Kiran, B., Kaushik, A., Kaushik, C.P. (2007).
“Response
surface methodology approach for optimizing removal
of Cr(VI) from aqueous solution using immobilized
Cynobacterium”, Chem. Eng. J., Vol. 126, pp.147-153
[10]. Kongsricharoern, N., Polprasert, C. (1996).
“Chromium removal by a bipolar electro-chemical
precipitation process”, Water.Sci.Technol., Vol. 34,
pp.109-116.
[11]. Kortenkamp, A., Casadevali, M., Faux, S.P., Jenner,
A., Shayer, O.J., Woodbridge, N., Obrien, P. (1996). “A role
for molecular oxygen in the formation of DNA damage
during the reduction of the carcinogen chromium (VI) by
alutathione”, Arch. Biochem.Biophys., Vol. 329(2),
pp.199-208.
[12]. Krishna, D., Padma Sree, R. (2013). “Response
surface modeling and optimization of chromium (VI)
removal from wastewater using limonia acidissima hull
powder”, i-manager’s Journal on Future Engineering and
Technology, Vol. 8(2), Nov-Jan 2013, Print ISSN 0973-2632,
E-ISSN 2230-7184, pp. 24-32..
[13]. Krishna, D., Suresh, M., Srikhar I.S., Madhuri, N.
(2014). “Removal of Manganese from Aqueous Solution
By Limonia Acidissima Hull Powder As Adsorbent”. imanager
’s Journal on Future Engineering and
Technology, Vol. 9(3), Feb-Apr, 2014, Print ISSN 0973-2632,
E-ISSN 2230-7184, pp. 22-30.
[14]. Krishna, D., Padma Sree, R. (2014). “Response
surface modeling and optimization of chromium (VI)
removal from waste water using custard apple peel
powder”, walailak J Sci & Tech, Vol. 11(6), pp. 489-496.
[15]. Krishna, D., Padma Sree, R. (2014). “Response
surface modeling and optimization of chromium (VI)
removal from waste water using borasus flabellifer coir
powder”, Int.J.Appl.Sci.Eng., Vol.11(2), pp.157-167
[16]. Kumar, D.A. (2004). Environmental Chemistry, New
age International, New Delhi, 5th Edn., pp.280.
[17]. Low, K.S., Lee, C.K., Ng., A.Y. (1999).
“Column study
on the sorption of Cr (VI) using quaternized rice hulls”,
Bio.reso. Technol., Vol. 68, pp. 205-208.
[18]. Montgomerry D.C. (2001). “Design and Analysis
of
Experiments”, 5th ed., John Wiley Sons, New York, USA.
[19]. Muthukumar, M., Mohan, D., Rajendran, M. (2003).
“Optimization of mix proportions of mineral aggregates
using Box- Behnken design of experiments” ,
Cem.Concr.Res. Vol. 25, pp. 751-758.
[20]. Omgbu, J.A., Iweanya, V.I. (1990). “Dynamic
sorption of Pb2+ and Zn2+ with palm kernel husk”,
J.Chem.Ed., Vol. 67, pp. 800-801.
[21]. Orthan, Y., Buyukgungor, H. (1993). “The
removal of
heavy metals by using agricultural wastes, Water”
Sci.Technol., Vol. 28, pp. 247-255.
[22]. Pagilla, K.R., Canter, L.W. (1999).
“Laboratory studies
on remediation of Chromium–contaminated soils”,
J.Environ.Eng, Vol.125, pp. 243-248.
[23]. Ross, S.M. (1994). “Toxic metals in soil
plant system,
John wiley and Sons”, Chichester, pp. 3-26.
[24]. Sawyer, C.N., McCarty, P.L., Parkin, G.F. (2003).
“Chemistry for environmental engineering and Science”, Tata
McGraw-Hill Publishing, New Delhi, 5th Edn., pp. 660-
661 & 717.
[25]. Seaman, J.C., Bertsch, P.M., Schwallie, L. (1999).
“In-
Situ Cr (VI) reduction within coarse – textured oxide-coated
soil and aquifer systems using Fe (II) solutions”,
Environ.Sci.Technol. Vol. 33, pp. 938-944.
[26]. Tiller, K.Y. (1989). “Heavy metals in soil
and their
environmental significance”, Adv.Soil.Sci., Vol. 9, pp. 113-
142.
[27]. Tiravanti, G., Petruzzelli, D., Passino, R. (1997).
“Pretreatment of tannery waste waters by an ionexchange
process for Cr (III) removal and recovery”,
Water.Sci.Technol. Vol. 36, pp. 197-207.
[28]. Toles, C.A., Marshell, W.E., Johns, M.M. (1997).
“GAC
from nutshells for the uptake of metal ions and organic compounds”,
Carbon, Vol. 35, pp. 1414-1470.
[29]. Vazquez, G., Gonzalaez-Alvarez, J., Freire, S.,
Lopez-Lorenzo, M., Antorrena, G. (2002). “Removal of
cadmium and mercury ions from aqueous solution by
sorption on treated pinus pinaster bark: kinetics and
isotherms”, Bio.reso. Technol., Vol. 82, pp. 247-251.
[30]. Veglio, F., Beolchini, F. (1997). “Removal of
metals by
biosorption: a review”, Hydrometallurgy, Vol. 44, pp. 301-
316.
[31]. Volesky, B., Holan, Z.R. (1995). Biosorption of
heavy
metals, Biotechnology. Prog. 11, 235-250.
[32]. Zhou, X., Korenaga, T., Takahashi, T Moriwake, T
Shinoda, S. (1993). “A process monitoring/controlling
system for the treatment of waste water containing (VI)”,
Water Res, Vol. 27, pp. 1049-1059.
