Study on the Accumulation and Leaching of Heavy Metals in the Bottom Ash Samples from Municipal Solid Waste Incinerators
Main Article Content
Abstract
Recently, incineration is a popular treatment method for municipal solid waste, which generates a large amount of ash containing toxic heavy metal components, causing environmental pollution. Therefore, this study aimed to evaluate the accumualtion and leaching of heavy metals in the bottom ash samples collected from municipal solid waste incinerators in Vinh Phuc and Hung Yen under different pH conditions. In addition, some of the physicochemical properties (pH, EC, moisture, volatile solid…) of bottom ash were also determined. The results indicated that Cu and Zn are the most common elements existed in the bottom ash samples. The total contents of Sb in both bottom ash samples were higher than the allowable limit for hazardous waste (QCVN 07:2009/BTNMT). However, the low mobility of the heavy metals was observed.
Keywords:
Municipal solid waste incinerator, bottom ash, heavy metals, mobility
References
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[5] M. Osako, N. Machida, M. Tanaka, Risk Management Measures against Antimony in Residue after Incineration of Municipal Waste, Waste Management, Vol. 16, No. 5-6, 1996, pp. 519-526, https://doi.org/10.1016/S0956-053X(96)00103-1.
[6] N. T. Mai, K. T. Hong, N. T . T. Hang, N. T. H. Lien, V. H. Tap, P. T. T. Hang, T. T. Tham, V. D. Toan, N. T. Hoa, N. H. Son, N. T. Nghia, T. T. Cuong, D. T. Duong, D. T. L. Chi, Analytical Procedures using SEM/EDX Equipment for Determining Heavy Metals contents in Fly Ash Genereated from Domestic Solid Waste Incinerators: a casestudy of Soc Son Waste to Power Plant in Hanoi, Vietnam Journal of Science and Technology, Vol. 62, No. 2, 2024, pp. 312-323, https://doi.org/10.15625/2525-2518/18198.
[7] N. T. Mai, V. H. Tap, N. D. Hai, P. T. T. Hang, T. T. Tham, V. D. Toan, N. T. T. Hang, K. T. Hong, N. T. H. Lien, V. Duong, D. Q. Hoa, N. T. Nghia, N. T. Hoa, D. T. L. Chi, D. T. Duong, Characteristics of Fly Ash from the Municipal Solid Waste Incineration Plant in Can Tho, Vietnam Journal of Science and Technology, Vol. 61, No. 4, 2023, pp. 681-691, https://doi.org/10.15625/2525-2518/17538.
[8] J. Poluszyńska, The Content of Heavy Metal Ions in Ash from Waste Incinerated in Domestic Furnaces, Archives of Environmental Protection, Vol. 46, No. 2, 2020, pp. 68-73, https://doi.org/10.24425/aep.2020.133476.
[9] Y. Lu, A. Tian, J. Zhang, Y. Tang, P. Shi, Q. Tang, Y. Huang, Physical and Chemical Properties, Pretreatment, and Recycling of Municipal Solid Waste Incineration Fly Ash and Bottom Ash for Highway Engineering, Advances in Civil Engineering, 2020, pp. 8886134, https://doi.org/10.1155/2020/8886134.
[10] M. Beikmohammadi, K. Yaghmaeian, R. Nabizadeh, A. H. Mahvi, Analysis of Heavy Metal, Rare, Precious, and Metallic Element Content in Bottom Ash from Municipal Solid Waste Incineration in Tehran based on Particle Size, Scientific Reports, Vol. 13, 2023, pp. 16044, https://doi.org/10.1038/s41598-023-43139-1.
[11] J. Liu, S. Sun, R. Zhang, S. Zhong, Determination and Distribution of Heavy Metals in the Municipal Waste Incinerator Slags from Guangdong Province, Applied Mechanics and Materials, Vol. 55-57, 2011, pp. 229-232,
https://doi.org/10.4028/www.scientific.net/AMM.55-57.229.
[12] J. Gao, T. Wang, J. Zhao, X. Hu, C. Dong, An Experimental Study on the Melting Solidification of Municipal Solid Waste Incineration Fly Ash, Sustainability, Vol. 13, 2021, pp. 535, https://doi.org/10.3390/su13020535.
[13] Y. Wei, T. Shimaoka, A. Saffarzadeh, F. Takahashi, Mineralogical Characterization of Municipal Solid Waste Incineration Bottom Ash with an Emphasis on Heavy Metal-bearing Phases, Journal of Hazardous Materials, Vol. 187, 2011, pp. 534-543, https://doi.org/0.1016/j.jhazmat.2011.01.070.
[14] C. H. Jung, T. Matsuto, N. Tanaka, T. Okada, Metal Distribution in Incineration Residues of Municipal Solid Waste (MSW) in Japan, Waste Management, Vol. 24, No. 4, 2004, pp. 381-391, https://doi.org/10.1016/S0956-053X(03)00137-5.
[15] P. B. Tchounwou, C. G. Yedjou, A. K. Patlolla, D. J. Sutton, Molecular, Clinical and Environmental Toxicicology Volume 3: Environmental Toxicology, Vol. 101, 2012.
[16] S. Feng, X. Wang, G. Wei, P. Peng, Y. Yang, Z. Cao, Leachates of Municipal Solid Waste Incineration Bottom Ash from Macao: Heavy Metal Concentrations and Genotoxicity, Chemosphere, Vol. 67, 2007, pp. 1133-1137, https://doi.org/10.1016/j.chemosphere.2006.11.030.
[17] A. Tessier, P. G. C. Campbell, M. Bisson, Sequential Extraction Procedure for the Speciation of Particulate Trace Metals, Analytical Chemistry, Vol. 51, No. 7, 1979, pp. 844-851, https://doi.org/10.1021/ac50043a017.