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Unformatted text preview: of coagulation and adsorption using activated carbon to remove the total suspended solids and enhance the performance of the membrane. In this study, transmembrane pressure was varied between 0.5 bar and 1.5 bar and the performance of the membrane was assessed in terms of reduction of chemical oxygen demand, color and turbidity of POME. The hi ghest reduction COD, color and turbidity occurred at the lowest pressure of 0.5 bar. In this study, it is revealed that polyethersulphone UF membrane material is a good environmental material for the treatment of palm oil mill effluent. 94 3rd ICYC 2010 Universiti Sains Malaysia ENV-O15 23rd-25th June 2010 CHARACTERIZATION OF UNCARIA GAMBIR EXTRACT AS AN ADSORBENT FOR THE REMOVAL OF METHYLENE BLUE Azraa Achmad and Jain Kassim School of Chemical Sciences, Universiti Sains Malaysia, 11800 Pulau Pinang, Malaysia E-mail: email@example.com Uncaria gambir is a plant with genus Uncaria and belongs to family of Rubiaceae. This plant mostly used for medicinal properties and contains many catechin. In this research, the Uncaria gambir was extracted with different type of solvents according to polarity index. The total ph enolic content, flavonoid content, and stiasny reaction of the extract were observed. The ethyl acetate extract contains the highest total phenolic content (95.95 % catechin equivalent) and flavonoid content (82.70 % catechin equivalent). This ethyl acetate extract was modified with formaldehyde and hydrochloric acid to be an adsorbent. The adsorption of modified ethyl acetate gambir extract shows high methylene blue removal capacity. -1 The highest of methylene blue removal was 99.31 % with pH 8, 50 mg of adsorbent, 50 mL of 50 mg L methylene blue solution and 2 hours agitation time at 100 rpm. ENV-O16 PARA-CHLOROPHENOL REMOVAL IN SEQUENCING BATCH BIOFILM REACTOR Muna Mastura Mohamad, Amat Ngilmi Ahmad Sujari, Lim Poh Eng and Seng Chye Eng School of Chemical Sciences, Universiti Sains Malaysia, 11800 Pulau Pinang, Malaysia E-mail: p...
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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.
- Spring '11