Synthesis of Novel Magnetic Biochar Using Microwave Heating for Removal of Arsenic from Waste Water

Document Type: Research Note


1 Department of Chemical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, MALAYSIA

2 Petroleum and Chemical Engineering Programme Area, Faculty of Engineering, Institute Technology Brunei, Tungku Gadong, P.O. Box 2909, BRUNEI DARUSSALAM

3 Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia, Jalan Semarak, 54100 Kuala Lumpur, MALAYSIA


Novel magnetic biochar has been successfully synthesized by using microwave technique, using discarded materials such as Empty Fruit Bunch (EFB). The optimized conditions for the best novel magnetic biochar synthesis are at 900 w reaction power, 20 min reaction time, and impregnation ratio 0.5 (biomas:FeCl3) The details physical and chemical analyses of novel magnetic biochar were found to be in good agreement with the hypothesis. These newly produced magnetic biochars have a high surface area 890 m2/g and that leads to highly efficient in the removal of arsenic (87%) from aqueous solution. As for new invention, magnetic biochar can be directly produced using microwaves heating by a single stage of activation compared
to the conventional method.


Main Subjects

[1] Sonia A., Bern K., Pawlik M., The Removal of Arsenic from Water Using Natural Iron Oxide Minerals, J. Clean Prod. 29-30: 208-213 (2012).

[2] Ratnaike RN., Acute and Chronic Arsenic Toxicity, J. Postgrad Med., 79(933): 391-396 (2003).

[3] Mohan D., Pittman C.U., Arsenic Removal from Water/Wastewater Using Adsorbents-A Critical Review, J Hazard Mater, 2: 1-53 (2007).

[4] Mondal P., Majumder C.B., Mohanty B., Laboratory Based Approaches for Arsenic Remediation from Contaminated Water: Recent Developments, J. Hazard Mater, 137 (1): 464-479 (2006).

[5] Kartinen E.O., Martin C.J., An Overview of Arsenic Removal Processes, Desalination, 103 (1–2): 79–88 (1995).

[6] Benjamin M.M., Sletten R.S., Bailey R.P., Bennett T., Sorption and Filtration of Metals Using Iron-Oxide-Coated Sand. Water Res., 30(11): 2609-2620 (1996).

[7] Dambies L., Vincent T., Guibal E., Treatment of Arsenic-Containing Solutions Using Chitosan Derivatives: Uptake Mechanism and Sorption Performance, Water Res., 36: 3699-3710 (2002).

[8] Sourja C., Sirshendu D., Jayanta K.B., Adsorption Study for the Removal of Basic Dye: Experimental and Modelling, Chemosphere, 58:1079-1086 (2005).

[10] Qiu Y., Zheng Z., Zhou Z., Sheng G.D., Effectiveness and Mechanisms of Dye Adsorption on a Straw-Based Bio-Char, Bioresour Technol., 100: 5348-5351 (2009).

[11] Cao X., Ma L., Gao B., Harris W., Dairy-Manure Derived Bio-Char Effectively Sorbs Lead and Atrazine, Environ Sci. Technol., 43: 3285-3291 (2009).

[12] Yao Y., Gao B., Inyang M., Zimmerman A.R., Cao X.D., Pullammanappallil P., Yang L., Biochar Derived from Anaerobically Digested Sugar Beet Tailings: Characterization and Phosphate Removal Potential, Bioresource. Technol., 102(10): 6273-6278 (2011a).

[13] Yao Y., Gao B., Inyang M., Zimmerman A.R., Cao X.D., Pullammanappallil .P, Yang L., Removal of Phosphate from Aqueous Solution by Biochar Derived from Anaerobically Digested Sugar Beet Tailings, J. Hazard Mater., 190(1-3): 501-507 (2011b).

[14] Zhang G., Qu J., Liu H., Cooper A.T., Wu R., CuFe2O4/Activated Carbon Composite: a Novel Magnetic Adsorbent for the Removal of Acid Orange II and Catalytic Regeneration, Chemosphere, 68: 1058-1066 (2007).

[16] Thostenson E.T., Chou T.W., Microwave Processing: Fundamentals and Applications, Compos Part A-Appl Sci Manuf, 30: 1055-1071 (1999).

[17] Wang S.J., Liao W., Au C., In Situ FTIR Studies of No Reduction over Carbon Nanotube, Catalyst Today, 93-95: 711-71 (2004).

[18] Rodriguez-Reinoso F., Molina-Sabio M., Activated Carbon from Lignocellulosic Materials by Chemical and/or Physical Activation: an Overview, Carbon, 30: 1111-1118 (1992).

[19] Benaddi H., Bandosz T.J., Jagiello J., Schwarz J.A., Rouzaud J.N., Legrasc D., Beguina F., Surface Fnctionality and Porosity of Activated Carbons Obtained from Chemical Activation of Wood, Carbon, 38: 669-674 (2000).

[20] Huidobro A., Pastor A.C., Reinoso F.R., Preparation of Activated Carbon Cloth from Viscous Rayon, Part IV, Chemical Activation Carbon, 39: 389-398 (2001).

[21] Bansal R.C., Goyal M., “Activated Carbon Adsorption”, Taylor and Francis Group, London, pp. 351-353 (2005).