Abstract
Hydrothermal treatment is a thermal conversion technology for processing high-moisture-content solid waste to coal-like materials. In this research, mixtures of sawdust and polyethylene terephthalate (PET) waste were treated in a 2000 mL hydrothermal reactor to produce hydrochar and a liquid product. The effects of zeolite addition and temperature variations during the treatment on the product characteristics were investigated. During the treatment, the utilized temperatures were 180, 200, and 220 °C, and the zeolite contents in the mixture were 10 and 20 wt%; the temperature and zeolite content were varied, while the other processing parameters were fixed, i.e., a biomass-to-PET ratio of 1:1, solid mixture-to-water ratio of 1:10, and processing time of 30 minutes at the targeted temperature. The product from each hydrothermal condition was characterized in terms of solid yield; liquid pH; chemical characteristics, determined using proximate analysis; and calorific value. The result shows that the addition of zeolite could increase the solid yield, while a higher treatment temperature led to a higher calorific value of the solid product.
References
[1] Yu, Y., Lou, X., Wu, H. 2008. Some recent advances in hydrolysis of biomass in hot-compressed water and its comparisons with other hydrolysis methods. Energy Fuels. 22(1): 46–60, http://dx.do i.org/10.1021/ef700292p.
[2] Huber, G.W., Iborra, S., Corma, A., 2006. Synthesis of transportation fuels from biomass: chemistry, catalysts, and engineering. Chem. Rev. 106(9): 4044–4098, http://dx.doi.org/10.1021/cr068360d.
[3] Scheirs, J. 1998. Polymer recycling: Science, technology and applications. Wiley Series in Polymer Science, J. Wiley & Sons. pp. 134.
[4] Zhang, L.H., Xu, C.B., Champagne, P. 2010. Overview of recent advances in thermo-chemical conversion of biomass. Energy Conv. Manag. 51(5): 969–982, http://dx.doi.org/10.1016/j.enconman.200 9.11.038.
[5] Yuliansyah, A.T., Hirajima, T., Kumagai, S., Sasaki, K. 2010. Production of solid biofuel from agricultural wastes of the palm oil industry by hydrothermal treatment. Waste Biomass Valor. 1(4): 395405, http://dx.doi.org/10.1007/s12649-010-9045-3.
[6] Román, S., Nabais, J., Laginhas, C., Ledesma, B., González, J. 2012. Hydrothermal carbonization as an effective way of densifying the energy content of biomass. Fuel Process Technol. 103: 78–83, http://dx.doi.org/10.1016/j.fuproc.2011.11.009.
[7] Bruun, S., Jensen, E.S., Jensen, L.S. 2008. Microbial mineralization and assimilation of black carbon: dependency on degree of thermal alteration. Org. Geochem. 39(7): 839–845, http://dx.doi.org/10.10 16/j.orggeochem.2008.04.020.
[8] Wang, Y., Wang, H., Lin, H., Zheng, Y., Zhao, J., Pelletier, A., Li, K. 2013. Effects of solvents and catalysts in liquefaction of pinewood sawdust for the production of bio-oils. Biomass Bioenergy. 59: 158–167, http://dx.doi.org/10.1016/j.biombioe.2013. 10.0 22.
[9] Tagliabue, M., Farrusseng, D., Valencia, S., Aguado, S., Ravon, U., Rizzo, C., Corma, A., Mirodatos, C. 2009. Natural gas treating by selective adsorption: material science and chemical engineering interplay. Chem. Eng. J. 155(3): 553–566, http://dx.doi.org/ 10.1 016/j.cej.2009.09.010.
[10] Purnomo, C.W., Maleiva, L.T.N., Sarto. 2018. Natural zeolite effect on liquid product characteristics of hydrothermal treatment. Key Eng. Mater. 789: 98–103, http://dx.doi.org/10.4028/ www.scientific.net/K EM.789.98.
[11] Ghani, W.A.W.A.K. 2014. Sawdust-derived biochar: characterization and CO2 adsorption/desorption study. J. Appl. Sci. 14(13): 1450–1454, http://dx.do i.org/10.3923/jas.2014.1450.1454.
[12] Purnomo, C.W., Mellyanawaty, M., Budhijanto, W. 2017. Simulation and experimental study on iron impregnated microbial immobilization in zeolite for production of biogas. Waste Biomass Valorization. 8(7): 2413–2421, http://dx.doi.org/1 0.1007/s12649- 017-9879-z.
[13] Pavlovič, I., Knez, Z., Skerget, M. 2013. Hydrothermal reactions of agricultural and food processing wastes in sub- and supercritical water: A review of fundamentals, mechanisms, and state of research. J. Agric. Food Chem. 61(34): 8003–8025, http://dx.doi.org/10.1021/jf401008a.
[14] Reza, M.T., Andert, J., Wirth, B., Busch, D., Pielert, J., Lynam, J.G. 2014. Hydrothermal carbonization of biomass for energy and crop production. Appl. Bioenerg. 1(1), http://dx.doi.org/ 10.2478/apbi-201 4-0001.
[15] Liu, Z., Quek, A., Hoekman, S.K., Balasubramanian, R. 2013. Production of solid biochar fuel from waste biomass by hydrothermal treatment carbonization. Fuel. 103: 943–949, http://dx.doi.org/10.1016/j.fue l.2012.07.069.
[16] Funke, A., Ziegler, F. 2010. Hydrothermal carbonization of biomass: A summary and discussion of chemical mechanisms for process engineering. Biofuel Bioprod. Biorefining. 4(2): 160–177, http://dx.d oi.org/10.1002/bbb.198.
[17] Octaviananda, C., Rahmawati, R.F., Prasetya, A., Purnomo, C.W., Yuliansyah, A.T., Cahyono, R.B. 2017. Effect of temperature and biomass-water ratio to yield and product characteristics of hydrothermal treatment of biomass. AIP Conference Procidings. 1823: 020029-1–020029-7, http://dx.doi.org/10.10 63/1.4978102.
[18] Tekin, K., Karagӧz, S., Bektaş, S. 2014. A review of hydrothermal biomass processing. renew. Sustain. Energy Rev. 40: 673–687, http://dx.doi.or g/10.1016/j.rser.2014.07.216.
[19] Mustaqim, Purnomo, C.W., Cahyono, R.B. 2018. Potassium Recovery from Banana Peels by Hydrothermal Treatment. AIP Conf. Proc. 2026: 020048-1–020048-6, http://dx.doi.org/10.1063/1.5 065008.
[20] Abidin, A., Purnomo, C.W., Cahyono, R.B. 2018. Hydro-char production from press-mud wastes of the sugarcane industry by hydrothermal treatment with natural zeolite addition. AIP Conf. Proc. 2026: 020049-1–020049-8, http://dx.doi.org/10.1063/ 1.5 065009.
Recommended Citation
Maleiva, Lalak Tarbiyatun Nasyin and Wahyu Purnomo, Chandra
(2020)
"Solid Waste Co-Conversion by Hydrothermal Treatment using Natural Zeolite,"
Makara Journal of Science: Vol. 24:
Iss.
3, Article 3.
DOI: 10.7454/mss.v24i3.1200
Available at:
https://scholarhub.ui.ac.id/science/vol24/iss3/3
