Malaysian Journal of Chemistry, 2017, Vol. 20(1), 128 – 137
Studies on Separation of Heavy Metals from Aqueous Solutions Using Biosorbents
Proddoku Raja Rao1, Ballekallu Chinna Eranna2*, Abiyu Kerebo Berekute3
and Ramesh Duraisamy4
1University College of Technology, Osmania University, Hyderabad, India
2,3,4 Arba Minch University, College of Natural Science, Department of Chemistry,
Arba Minch, Ethiopia
Received: November 2017; Accepted: May 2018
Man is blessed with an abundance of nature. But in the name of development, the nature is being continuously destroyed by man. As a result, nature is polluted beyond the measure because of an indiscriminate release of heavy metals into the environment. Industrialization and urbanization pose a significant problem to the biosphere. Heavy metal ions do not degrade but harm human body, flora, fauna, and the environment. Biosorption is one of the most effective techniques to remove heavy metals from industrial effluents. The low cost-natural products and waste substances are found to be very effective in the removal of heavy metals from industrial wastewaters. The objective of the present study is to develop inexpensive, eco-friendly and useful metal ion adsorbents that are available in large quantity. As an alternative to existing commercial adsorbents for the removal of different heavy metal ions like chromium, lead and cadmium from synthetic aqueous solutions. In the present work different low cost natural adsorbents such as coconut shell, tamarindus indica, Mangifera indica, Moringa oleifera and waste products such as pineapple peel and soap nut seeds (The Drupe of sapindus plants, containing saponins which are natural surfactants) were used to determine adsorption efficiency in removing chromium, lead and cadmium. All these adsorbents were used without any pre-treatment. The influence of contact time, pH, temperature, adsorbent dose and initial metal ion concentration on the selectivity and sensitivity of the removal process was investigated. The removal of these metal ions from aqueous solutions/industrial effluents was studied using the batch method. It was observed that the rate of adsorption increased with the increase in adsorbent dose. The maximum time for higher adsorption rates was found between 120 to 150 min. The optimum pH for the separation observed was 2. Finally, based on the results obtained, the researcher would like to conclude that the use of low-cost adsorbents for metal ion removal which is feasible and eco-friendly. The results are presented and tabulated.
1. Javaid, A., Bajwa, R. and Javaid, A. (2010) Biosorption of heavy metals using a dead macro fungus Schizophyllum commune (Fries), Pakistan Journal of Botany, 42(3), 2105–2118.
2. Srinivasan K., Balasubramanian, N. and Ramakrishnan, T.V. (1988) Studies on chromium removal by rice husk carbon, Ind. J. Environ. Health, 30, 376–387.
3. Ajmal, A. M., Rehana, Y. and Anus, A. (1998). Adsorption behaviour of cadmium, zinc, nickel and lead from aqueous solutions by Mangifera indica seed shell, Indian Journal of Environmental health, 40(1), 1–5.
4. Amal, R. S. and Srinivasa, R. R. (2002) Removal of chromium on synthetic effluent by adsorption on activated carbon, Indian J. Environmental Protection, 22(1), 69–72.
5. Mor, S. R. and Bishnoi, N. R. (2002) Adsorption of chromium using activated baggase carbon as adsorbent, Indian Journal of Environmental Protection, 22(5), 564–568.
6. Rao, M., Parwate, A.V. and Bhole, A.G. (2003) Heavy metals removal by adsorption using bagasse and modification to Helfferich Model, J. Environ. Pollu. Control, 6(4), 6–13.
7. Vasanthy, M., Sangeetha, M. and Kavitha, C. (2003) Solutions using a mixture of fly ash and activated carbon, J. Indian Journal of Environmental Protection, 23(12), 1321–1325.
8. Acar, F. N. and Eren, Z. (2006) Removal of Pb (II) ions by activated poplar sawdust (Samsun clone) from aqueous solutions, Journal of Hazard Materials, 137, 909–914.
9. Kaustubha Mohanthy, K. (2005) Removal of chromium (VI) from aquesous solutions by activated carbon developed from Terminalia arjuna nuts activated with zinc chloride, 60(11) 3049–3059.
10. Gharde, B. D., Gholse, S. B. and Patil, P.V. (2006). Removal of copper (II) from aqueous solution using Tamarindus indica fruit shell substrate, J. Poll. Res., 25(2), 449–450.
11. Abdel-Ghani, Nour El-Din, T., Ghadir, A. and Chaghaby, El-1. (2008) The use of low cost and environment friendly materials for the removal of heavy metals from aqueous solutions, J. Current World Environment, 3(1), 31–38.
12. Dash, S. N. and Sagar, P. N. S. (2008) Adsorption of Zn metal from paper mills waste water by activated carbon prepared from Shorea robusta leaf litter, J. Nature Environment and Pollution Technology, 7(1), 117–122.
13. Gupta, V., Gupta, R., Vashishtha, S. and Robusta and Singh R. P. (2009) Removal of cadmium by modified bagasse dust and fly ash, Journal of Ecotoxicology & Environmental Monitoring, 19(1), 79–83.
14. Malliga, D., Jeyanthi, G. P. and Bhuvaneswari, V. (2010) Adsorption of nickel (II) and chromium (VI) from synthetic metal solutions using powdered human hair as adsorbent, Journal of Ecotoxicology & Environmental Monitoring, 20(1), 39–50.
15. Kannan, N. and Veemaraj, T. (2011) Detoxification of nickel (II) ions by adsorption onto carbons prepared from agricultural materials ― A comparative study, Indian Journal of Environmental protection, 31(4), 338–344.
16. Das, S. (2012) Biosorption of chromium and nickel by dried biomass of cyanobac-terium Oscillatoria-laete virens, Int. J. Environ. Sci., 3(1), 341–352.
17. Abraham, B. T. and Anirudhan, T. S. (1998) Influence of humic acid and pH on cadmium (II) adsorption on montmorillonite, Indian Journal of Environmental protection, 19(5), 363–366.
18. Ch. Chakrapani, R. M., Rao, K.S., Babu, S., Rao, V. C. V. and Rao, V.S. (2008) Removal of methylene blue by maize shell carbon, Indian Journal of Environmental Protection, 28(6), 547–553.
19. Kannan, N. and Balamuragan, J. (2004) Removal of copper ions by adsorption on to coconut shell and dates nut carbons―A comparative study, Indian Journal of Environmental protection, 24(5), 371–378.
20. Kannan, N. and Sundaram, M. (2002) Kinetics of adsorption of dyes on activated carbon: A comparative study, Indian Journal of Environmental Protection, 22(1), 9–16.
21. Shekar, C.M. (2008) Removal of Lead from aqueous effluents by adsorption on coconut shell carbon, Journal of Environmental Science and Engineering, 50(2), 137–140.
22. Babu, B.V. and Gupta, S. (2008) Adsorption of Cr (VI) using activated neem leaves: kinetics studies, Adsorption, 14(1), 85–92.
23. Baisakh, P.C. and Patnaik, S.N. (2002) Removal of hexavalent chromium from aqueous solutions by adsorption on coal char, Indian J. Environ. Health, 4(3), 189–196.
24. Gupta, V. and Sharma, M. (2010) Adsorption analysis of chromium (VI) by Natural polymer tamarind kernel powder (TKP) in aqueous medium, Research Journal of Chemistry and Environment, 14(1), 41–45.
25. Rashed, N.M. (2005) Fruit stones as adsorbents for the removal of lead ion from polluted water, Chemistry Department, Faculty of Science, 152872, Aswan, Egypt.
26. Joshi, M. and Srivastava, R. K. (2005) Chromium (VI) removal from waste water by using carbonized pipal bark adsorbent, Indian J. Environmental Protection, 25(1), 57–60.
27. Kobya, M. (2004) Adsorption kinetics and equilibrium studies of Cr (VI) by hazelnut shell activated carbon, Adsorption Science Technology, 22, 51–64.
28. Latika, S., Bharati, R. and Sinha, M. P. (2008) Biosorption of cadmium from aqueous medium by cyanobacterium Nostoc carneum Agardh, The Ecoscan, 2(1), 125–127.
29. Low, K.S., Lee, C.K., and Liew, S.C. (2000), Sorption of Cd (II) and Pb (II) from aqueous solutions by spent grain, Process Biochemistry, 36, 59–64.
30. Madhavakrishnan, S., Manickavasagam, K., Mohanraj, R., Kadirvelu, K. and Pattabhi, S. (2008) Removal of mercury (II) from aqueous solution by adsorption onto Ricinus communis pericarp activated carbon, Indian J. Environmental Protection, 28(11), 967–972.
31. Chaudhuri, M., Elmolla, E.S. and Othman, R. (2011) Adsorption of reactive dyes Remazol Red F-3B and Remazol blue from aqueous solution by coconut coir activated carbon, J. Nature Environment and Pollution Technology, 10(2), 193–196.