0 03 sludge volume 30 and dissolved oxygen 1

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Unformatted text preview: nd flow rate 4 0 mL min . The respective Cu(II) and Ni(II) removal rates were 95.2 % and 83.05 % and their BOD5 and COD decrease rates were 67.09 % and 93.89 %. To promote the efficiency of the biological treatment two different configurations of continuous SBRs and chemical precipitation were used. The more efficient has been obtained when the chemical precipitation was done after two stages of biological treatment prior to output being fed into the third reactor. Upon completion the removal of Cu(II) and Ni(II) were fo und to be 99.84 % and 99.83 % and their BOD5 and COD decrease rates were 76.77 % and 88.84 %. In addition the cyanide removal level was 8.32 %. 1 103 23rd-25th June 2010 3rd ICYC 2010 Universiti Sains Malaysia ENV-P3 STUDY OF BANANA PEEL (MUSA SEPIENTUM) AS A CATIONIC BIOSORBENT 1 Muhammad Aqeel Ashraf, Mohd. Jamil Maah and Ismail Yusuf 1 2 1 Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia 2 Department of Geology, University of Malaya, Kuala Lumpur 50603, Malaysia E-mail: chemaqeel@gmail.com Biomass banana peel (Musa sapientum), is used in this study. Efficacy of the biosorbent is tested in 2+ 2+ 2+ 2+ batch for Pb , Cu , Zn and Ni in single metal solution under controlled experimental conditions. The concentration of the biomass was 0.5 g. Metal ions were analyzed by atomic absorpt ion spectrophotometer using its specific lamp for each metal at a specific wavelength. It is found that metal sorption increases when the equilibrium metal concentration rises. Uptake sorption in single metal 2+ 2+ 2+ 2+ system (SMS) were 27.462 mg Pb , 23.39 mg Cu , 18.83 mg Zn , 20.328 mg Ni per gram for Musa sp. -1 (Banana) peel biomass at highest experimental solution concentration, i.e. 150 mg L . Removal of metal 2+ 2+ 2+ 2+ were 94.80 % Pb , 86.81 % Cu , 84.63 % Zn , 82.36 % Ni for Musa sp. (Banana) peel biomass at -1 lowest experimental solution concentration, i.e., 25 mg L . Biosorption equilibrium isotherms were plotted for the metal uptake q aga...
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This note was uploaded on 02/17/2011 for the course CHEMISTRY 101 taught by Professor Csr during the Spring '11 term at University of Louisville.

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