For metal content analysis wet destruction of waste

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Unformatted text preview: ppm and mixed waste cooking oil is 676 ppm. For the Cu metal content in 1 – 4 times repeatedly frying process is 633, 743, 76 and 862 ppm, in fried chicken cooking market waste cooking oil is 934 ppm and mixed waste cooking oil is 1001 ppm. Hg metal content in 1 – 4 times repeatedly frying process is 4927 – 7703 ppb, in waste fried chicken cooking market waste is 8231 ppb and mixed waste cooking oil is 8387 ppb. The result of this research show that increasing in each time of the frying process based on SNI 01 – 3741 – 2002, the metal of Pb and Cu does not fulfill with quality standard but the Hg metal content fulfill with the quality standards SNI . The reuse of fried process might damage the nutrient of cooking oil, especially from metal adsorption. In order to decrease metal adsorption (Pb, Cu and Hg) in waste cooking oil, adsorption process is done by varying the particle size of sugar cane pulp, ie (425 - >250, 250 - >180, 180 - > 150, and 150) µm at 7 grams of mass by using the contact time for 10 days. It is found that the optimum condition for oil pro cessed at 7 grams of mass and particle size of ≤150 μm for 10 days contact time. The results show the metals lead and mercury on the in waste fried chicken cooking oil are decreased about 70368 % and 93182 %. On the other hand, metal Cu increasing by 16.25 %. Compared to the metal content in the cooking oils by SNI 01-3741-2002, the metal of Pb and Cu does not fulfill with quality standard but the Hg metal content fulfill with the quality standards SNI. ENV-P10 REMEDIATION OF GROUNDWATER POLLUTED WITH NITRATE USING ION-EXCHANGE RESIN AND HETEROGENEOUS CATALYST 1,2 Lina Mahardiani, Yoshinori Sakamoto and Yuichi Kamiya 3 3 2 Department of Chemistry, University of Gadjah Mada, Yogyakarta, Indonesia Department of Educational Chemistry, University of Sebelas M aret, Surakarta, Indonesia 3 Research Faculty of Environmental Earth Science, Hokkaido University, Sapporo, Japan E-mail: [email protected] - 1 Groundwater is polluted with nitrate (NO3 ) due to over fertilization. Herein, we report the remediation of groundwater by a combination process consisted of anion-exchange resin and heterogeneous Sn-Pd bimetallic catalyst. Under optimized conditions, 88.5 % of NO3 was removed from the groundwater by using the anion-exchange resin within 3 h and the concentration of NO3 in the treated groundwater w...
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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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