Analysis of Fe in Sediment Material using a Modified Tessier Technique for Detection of Fe-Anthropogenic and Fe-Naturals

International Conference on Condensed Matters and Advanced Materials 2018

Wijaya, A.R.^1 ; Arifani, R.I.^1 ; Kusumaningrum, I.K.^1 ; Budiasih, E.^1 ; Daupor, H.^2 ; Hossain, Md. S^3 ; Sanjaya, E.H.^1^4

Chemistry Department, Faculty of Mathematics and Natural Science, Universitas Negeri Malang (UM), State University of Malang, Jln. Semarang No. 5, Malang, Indonesia^1

Chemistry Major, Faculty of Science Technology and Agriculture, YalaRajabhat University, Yala

95000, Thailand^2

Department of Aquaculture, Faculty of Fisheries, Bangladesh Agricultural University (BAU), Mymensingh

2202, Bangladesh^3

Department of Civil and Environmental Engineering, School of Engineering, Tohoku University, 6-6-04, Aramaki Aza Aoba Aoba-ku, Sendai, Miyagi

980-8579, Japan^4

关键词: Accuracy and precision;    Contamination factors;    Environmental pollutions;    Leaching process;    Microwave power;    Optimized conditions;    Power radiations;    Recovery percentages;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/515/1/012015/pdf
DOI  :  10.1088/1757-899X/515/1/012015

来源: IOP

【 摘 要 】

Monitoring of environmental pollution can be carried out in the leaching process to determine the quality of sediment. This study modified the Tessier method leaching process using an optimized microwave. This study reported the effect of radiation contact time and microwave power in the microwave Tessier method based on their level of accuracy and precision to the analysis of Fe in sediment. After optimizing the microwave Tessier method, we continued using this optimization to determine pollution status using the Contamination Factor (CF) values. The results showed the time of contact of the radiation and microwave power gave an influence in the optimized Tessier analysis of Fe in sediment. The optimized conditions were in the fraction 1 (power radiation: 10%; time: 2 minutes), fraction 2 (power radiation: 30%; time: 3 minutes), fraction 3 (power radiation: 50%; time: 2 minutes), fraction 4 (power radiation: 50%; time: 3 minutes). The microwave Tessier method produced the recovery percentage of 94.11%. Fe concentration in sediments showed in the non-resistant fraction had a range between 537.6 mg/kg - 575.9 mg/kg, whereas Fe concentrations in the resistant fraction ranged from 3161.6 mg/kg - 10067.2 mg/kg. The results of CF values were obtained at 1.933-1.961, indicating the moderate contamination status in the Gulf of Prigi.