3 11 ppb for 6 weeks 03 38 ppb for 6 weeks the average

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Unformatted text preview: t of Chemistry, Faculty of Mathematics and Natural Scie nces, Andalas University, Indonesia E-mail: aulia.indah@gmail.com Muara River in Padang-West Sumatra Indonesia has been polluted from domestic and industrial waste. Multi Soil Layering (MSL) as a system was used to increase water qualities of Muara River. This system has been developed by biomaterial added such as charcoal, chaff paddy, and sawdust. Aeration and non aeration treatment were applied to know which treatment is closed for remediation of pollutant. Analysis quality of water before treatment based on pH, color, sulphate, sulfide, and organic matter variable were 7.53; 0.805 Pt - Co; 27.96 mg/L; 0.0119 mg/L; and 65.20 mg/L respectively. Result showed that aeration treatment was effective to reduce organic matter by MSL -chaff paddy, 60 % effective. Non aeration treatment showed 80 % effective to increase color of water quality by MSL -charcoal. Based on Indonesian water quality assurance, water treated t hrough these MSL was passed for tourism aspect quality of water. 106 3rd ICYC 2010 Universiti Sains Malaysia ENV-P9 23rd-25th June 2010 REMOVAL OF TOXIC METAL Pb, Cu AND Hg IN WASTE FRIED CHICKEN COOKING OIL BY WASTE SUGAR CANE PULP Indrawati, R. W. Athika, I.Y. Betra, Rahmiana Zein, Yefrida and Refilda Suhaili Department of Chemistry, Faculty of Mathematics and Natural Sciences, Andalas University, Indonesia E-mail: loan_indrawati@yahoo.com The influence of repeatedly frying process of chicken on toxic metal content Pb, Cu, and Hg in waste fried chicken cooking oil was investigated. For metal content analysis, wet destruction of waste cooking oil is applied. Pb and Cu concentration was determined by atomic absorption spectrophotometer (WFX SSA Rayleigh - 320) is applied to measuring the particle of Cu and Pb, a nd Hg by cold vapor SSA (Perkin Elmer). It is found that the Pb metal content in 1 – 4 times repeatedly frying process is 433, 467, 487 and 533 ppm, in waste fried chicken cooking oil market found 573...
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