References
- Ajayi , SO and Osibanjo , O . 1981 . Pollution studies on Nigeria rivers(II) . Environmental Pollution (Series B) , 2 : 87 – 95 .
- Al-Hashimi , A , Krishnan , SS and Jervis , RE . 1992 . Human hair as a pollutant dosimeter . Journal of Radioanalytical and Nuclear Chemistry , 161 : 171 – 80 .
- Anderson , JR and Weiss , CO . Method for the precipitation of heavy metal sulphides . U.S. Patent No. 3, 740 . 1973 .
- Dissanayake , T and Weerosooriya , P . 1981 . Peat as a metal trapping material in the purification of industrial effluents . International Journal of Environmental Studies , 17 : 233 – 8 .
- Gould , JP , Masingale , MY and Miller , M . 1986 . Recovery of silver and mercury from COD samples by Iron Cementation . Journal of Water Pollution Control Federation , 56 : 280 – 6 .
- Hugot , E . 1960 . Handbook of sugar cane engineering , 5th , 673 – 6 . Elsevier .
- Krishnan , SS , Cancilla , A and Jervis , RE . 1987 . Industrial wastewater treatment for toxic metals using natural materials as adsorbents . Journal of Radioanalytical and Nuclear Chemistry , 11 : 373 – 8 .
- Kumar , P and Dara , SS . 1980 . Removal of toxic heavy metal ions from wastewaters using modified materials . International Journal of Air and Water Pollution Research , 13 : 353 – 61 .
- Okiemen , FE , Osuide , MO and Oriakhi , CO . 1986 . Sorption of cadmium, lead, and zinc ions from aqueous solutions by maize cobs . Nigerian Journal of Applied Science , 3 : 121 – 6 .
- Patterson , JW . 1975 . Wastewater treatment technology , 265 Mich: Ann Arbor Science Publishers .
- Peters , WR , White , ET , Carole , YK and Shedroll , S . 1986 . Wastewater treatment – physical and chemical methods . Journal of Water Pollution Control Federation , 58 : 481 – 9 .
- Randall , MJ , Hautala , E and McDonald , G . 1978 . Binding of heavy metal ions by formaldehyde – polymerized peanut skins . Journal of Applied Polymer Science , 22 : 379 – 87 .
- Vogel , AI . 1987 . Vogel's qualitative inorganic analysis, , 6th ed. , London : Longman .
- Winfield , BA . 1979 . Reverse osmosis . Water Research , 13 : 561 – 4 .