Unformatted text preview: g approximately 15 million tons of waste plastics throughout the Europe. The highest potential for growth can be found in the rapidly developing parts of Asia (excluding Japan), where currently the per capita consumption is only around 20 kg/year. Saudi Arabia is one of the major producers of plastic in the world with total production capacity of around six million tons p er year. The amount of plastic wastes in Saudi Arabia is about 15 % (wt) in the composition of domestic municipality waste [Ali et al. 2004]. Laser Induced Breakdown Spectroscopy (LIBS) and Inductively Coupled Plasma spectrometry were applied for the detection of hazardous trace elements present in non -degradable part of plastics known as insoluble organic material. LIBS signal intensity for each metal measured in the test sample was unique and different. The capability of this technique is demonstrated by analyzing various trace metals present in the plastics and also compared with ICP results. This work demonstrates that LIBS technique could be applied for rapid on line analysis of plastics waste samples. ENV-O2 REMOVAL OF TOXIC METALS USING SEMI-REFINE CARRAGEENAN AND MODIFIED SEMI-REFINE CARRAGEENAN Wong Hai Fatt and Suhaimi Md. Yasir School of Science and Technology, Universiti Malaysia Sabah, 88999 Kota Kinabalu, Sabah, Malaysia E-mail: [email protected] Growing industrial let to increase concern about the discharge of wastewater especially from metal plating. This study aim to establish the potential raw and formaldehyde modified semi refined carrageenan (SRC) are used for toxic metals removal. The dried seaweed was treated with 0.2 % KOH and ground in 200-300 μm. The modified SRC (MSRC) was prepared as SRC was treated in 0.20 % of formaldehyde for overnight. The characteristic of SRC and MSRC were studied by carried out swelling properties analysis, FT-IR analysis, TGA analysis and SEM analysis. The performance of SRC and MSRC was determined using batch equilibrium method and column were carried out to determin...
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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