REFERENCES
- Galvin , J. B. and Dberg , S. G. 1984 . Toxicity Nature of Hexavalent Chromium to Alveolax Macrophage in Vivo in Vitro . Env. Res. , 33 : 7
- Kaufaman , D. B. 1970 . Acute Potassium Dichromate Poisoning in Man . Am. J. Diseases Childeren. , 119 : 374
- Browning , E. 1969 . Chromium in Toxicity of Industrial Metals , 2md Ed. Vol. Chapter 12 , London : Butterworths and Co. .
- Marshal , S. 1980 . Metal and Inorganic Waste Reclaiming Encyclopedia; Park-Ridge, New Jersey : Wayers Beta Corp. .
- Patterson , J. W. 1985 . Industrial Waste Water Treatment Technology; 53 Ann Arbor, Mich. : Ann Arbor Science Pub. Inc. .
- Srinivasan , K. , Balasubramanium , N. and Ramakrishna , T. V. 1988 . Ind. J. Env. Health. , 30 : 376
- Srivastava , H. C. , Mathur , R. P. and Mehrotra , I. 1986 . Env. Technol. Lett. , 7 : 55
- Dasmahapatra , G. P. , Pal , T. K. , Bhadra , A. and Bhattacharya , B. 1996 . Studies on Separation Characteristics of Hexavalent Chromium from Aqueous Solutions by Fly Ash . Sep. Sci. Technol. , 31 : 2001 – 09 .
- Nagesh , N. and Krishnaiah , A. 1989 . Ind. J. Env. Health. , 31 : 304
- Deepak , D. and Gupta , A. K. 1991 . Hexavalent Chromium Removal from Wastewater . Ind. J. Env. Health. , 33 : 297 – 305 .
- Tare , V. and Chaudhary , S. 1987 . Water Res. , 21 : 1109
- Samantaroy , S. , Mohanty , A. K. and Mishra , M. 1997 . Removal of Hexavalent Chromium by Kendu Fruit Gum Dust . Appl. Poly. Sci. , 66 : 1485 – 1494 .
- Kanon , N. and Vanangamudi , A. 1991 . A Study on Removal of Chromium(VI) by Adsorption on Lignite Coal . Ind. J. Env. Prot. , 11 : 241 – 245 .
- Samantaroy , S. , Mohanty , A. K. and Mishra , M. 1998 . Studies on Removal of Hexavalent Chromium by Drumstick Gum Dust. IUPAC International Symposium on Advances in Polymer Science and Technology 1061 – 1064 . Chennai : MACRO-98 .
- 1960 . Indian Standard Methods of Chemical Analysis of Fire Clay and Refractory Materials , IS:1527
- 1989 . “ APHA ” . In Standard Methods for Examination of Water and Waste Water , 17th Ed. New York : American Public Health Association .
- Lagergren , S. and Bil , K. 1898 . Svenskar Vatens Kapsakad Handl , : 24
- Weber , W. J. and Morris , J. C. 1963 . Kinetics of Adsorption on Carbon from Solution J. Sanit . Eng. Div., ASCE , 89 ( SA2 ) : 31 – 39 .
- Helfferch , F. 1962 . Ion Exchange New York : McGraw Hill Book Co. Inc. .
- Bhattacharya , A. K. and Venkobachar , C. 1984 . Removal of Cadmium (II) by Low Cast Adsorbents . J. Envir. Eng. , 110 : 110 – 22 .
- Michelson , L. D. , Gideon , P. G. , Pace , E. G. and Kutal , L. H. 1975 . Removal of Soluble Mercury from Waste Water by Complexing Techniques . US Dept. Industry, Office of Water Research and Technology , Bull No. 74
- Wells , A. F. 1950 . Structural Inorganic Chemistry , 2nd Ed 101 Oxford : Clarendon Press .
- Khan , S. U. 1969 . Interaction between Humic Acid Fraction of Soils and Certain Metallic Cations . Soil Sci. Soc. Am. Proc. , 33 : 851 – 54 .
- Mckay , G. , Otterburn , M. S. and Sweeny , A. G. 1981 . Surface Mass Transfer Process during Colour Removal from Effluent Using Silica . Wat. Res. , 15 : 327 – 31 .
- Yadav , K. P. , Pandey , K. K. , Tyagi , B. S. and Singh , V. N. 1987 . Fly Ash for the Treatment of Cd (II) Rich Effluents . J. Environ. Technol. Lett. , 8 ( 5 ) : 225 – 34 .
- Dasmahapatra , G. P. , Pal , T. K. and Bhattacharya , B. 1996 . Evaluation of Thermodynamic Parameters for Separation of Hexavalent Chromium by Fly Ash . Sep. Scie. Technol. , 31 ( 20 ) : 2843 – 853 .
- Huang , C. P. and Wu , M. H. 1977 . The Removal of Chromium (VI) from Dilute Aqueous Solution by Activated Carbon . Water Res. , 11 : 673 – 679 .
- Bajpai , S. K. 1999 . Effect of Temperature on Removal of Ni(II) from Aqueous Solution by Adsorption onto Fire Clay . Asian J. Chem. , 11 ( 1 ) : 171 – 80 .
- Singh , B. K. and Rawat , N. S. 1994 . Comparative Sorption Kinetic Studies of Phenolic Compounds on Fly Ash and Impregnated Fly Ash . J. Chem. Technol. Biotech. , 61 : 57 – 65 .
- Zogoroski , J. S. , Faust , S. D. and Hags , J. H. Jr. 1976 . The Kinetics of Adsorption by Granular Activated Carbon . J. Colloid Interface Sci. , 55 ( 2 ) : 329 – 41 .
- Mckay , G. 1982 . Adsorption of Dye Stuff from Aqueous Solutions with Activated Carbon—1. Equilibrium and Contact Time Studies . J. Chem. Technol. Biotechnol. , 32 ( 11 ) : 759 – 72 .