Microwave Drying of Automotive Industry Paint Sludge
Publication: Journal of Hazardous, Toxic, and Radioactive Waste
Volume 22, Issue 4
Abstract
The moisture content of process sludges generated by industries is an important problem affecting the cost and convenience of sludge management. Sludge can be dried to decrease its volume and reduce most of the moisture. This research analyzes the microwave drying process of water-based paint sludge from the automotive industry by investigating the influence of dielectric constant, sludge form (raw or ground), drying method (microwave and conventional), drying period, and air curing, and by conducting numerical modeling. The drying period of sewage sludge is also analyzed for comparison. The moisture losses range between 8 and 12% and between 26 and 31% for 5 and 10 min microwave drying periods, respectively. The moisture losses obtained with conventional heating range between 0.2 and 1.2% and between 0.7 and 2.9% for 5 and 10 min drying, respectively. Air curing of the samples following microwave drying results in a 3% increase in the moisture losses. Numerical modeling results show that the dielectric characteristics of the paint sludge might change during the drying process inside the oven and different chemical compositions of the sludges might lead to temperature changes during the drying process. By modeling the microwave oven, it is possible to determine the regions that can dissipate more heat without measuring, which is confirmed with the dissipated power density maps and electric field distribution obtained.
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Acknowledgments
The authors acknowledge the financial support by Uludag University with Project Nos. OUAP(M)-2013/8 and KUAP(M)-2013/51. The authors thank Aycan Erdem, M. Omer Yaman, Tugba Tuluc, and K. Ipek Senoglu for their efforts in the experiments.
References
ASTM. 2015. Standard Test Methods for Proximate Analysis of Coal and Coke by Macro Thermogravimetric Analysis. ASTM D7582. West Conshohocken, PA: ASTM.
ASTM. 2017. Standard Test Method for Determination of Polychlorinated Biphenyls (PCBs) in Waste Materials by Gas Chromatography 1. ASTM D6160. West Conshohocken, PA: ASTM.
Bennamoun, L., Z. Chen, and M. T. Afzal. 2015. “Microwave drying of wastewater sludge: Experimental and modeling study.” Drying Technol. 34 (2): 235–243. https://doi.org/10.1080/07373937.2015.1040885.
CEN (European Committee for Standardization). 2002. Characterisation of waste—Leaching—Compliance test for leaching of granular waste materials and sludges—Part 2: One stage batch test at a liquid to solid ratio of 10 I/kg for materials with particle size below 4 mm (without or with size reduction). EN 12457. Brussels, Belgium: CEN.
CEN (European Committee for Standardization). 2004. Characterization of waste—Determination of hydrocarbon content in the range of C10 to C40 by gas chromatography. EN 14039. Brussels, Belgium: CEN.
CEN (European Committee for Standardization). 2007. Characterization of waste - determination of loss on ignition in waste, sludge and sediments. EN 15169. Brussels, Belgium: CEN.
Chen, Z., M. T. Afzal, and A. A. Salema. 2014. “Microwave drying of wastewater sewage sludge.” J. Clean Energy Technol. 2 (3): 282–286. https://doi.org/10.7763/JOCET.2014.V2.140.
Cheng, D. K. 1993. Fundamentals of engineering electromagnetics, 488. New York: Addison-Wesley Publishing Company.
Cieslik, B. M., J. Namiesnik, and P. Konieczka. 2015. “Review of sewage sludge management: Standards, regulations and analytical methods.” J. Cleaner Prod. 90: 1–15. https://doi.org/10.1016/j.jclepro.2014.11.031.
Collins, A. G., S. Mitra, and S. G. Pavlostathis. 1991. “Microwave-heating for sludge dewatering and drying.” Res. J. Water Pollut. Control Fed. 63 (6): 921–924. https://doi.org/10.2307/25044083.
Demirhan, E., and B. Özbek. 2011. “Thin-layer drying characteristics and modeling of celery leaves undergoing microwave treatment.” Chem. Eng. Commun. 198 (7): 957–975. https://doi.org/10.1080/00986445.2011.545298.
Dupont. 2018. Teflon PTFE Properties Handbook, fluoropolymer resin. Accessed September 20, 2017. http://www.rjchase.com/ptfe_handbook.pdf.
Elenga, R. G., D. Massamba, R. R. Niéré, J. G. Maniongui, and G. Dirras. 2013. “Convective and microwave drying of raffia fruit: Modeling and effects on color and hardness.” Res. J. Appl. Sci. Eng. Technol. 6 (15): 2715–2723. https://doi.org/10.19026/rjaset.6.3776.
EU (European Union). 2000. Commission Decision of 3 May 2000 replacing Decision 94/3/EC establishing a list of wastes pursuant to Article 1(a) of Council Directive 75/442/EEC on waste and Council Decision 94/904/EC establishing a list of hazardous waste pursuant to Article 1(4) of Council Directive 91/689/EEC on hazardous waste (notified under document number C(2000) 1147) (Text with EEA relevance) Official Journal of the European Union 06/09/2000. Brussels: European Commission.
Evin, D. 2011. “Microwave drying and moisture diffusivity of white mulberry: Experimental and mathematical modeling.” J. Mech. Sci. Technol. 25 (10): 2711–2718. https://doi.org/10.1007/s12206-011-0744-x.
Gan, Q. 2000. “A case study of microwave processing of metal hydroxide sediment sludge from printed circuit board manufacturing wash water.” Waste Manage. 20 (8): 695–701. https://doi.org/10.1016/S0956-053X(00)00036-2.
Hong, Y. D., B. Q. Lin, H. Li, H. M. Dai, C. J. Zhu, and H. Yao. 2016. “Three-dimensional simulation of microwave heating coal sample with varying parameters.” Appl. Therm. Eng. 93: 1145–1154. https://doi.org/10.1016/j.applthermaleng.2015.10.041.
Hsieh, C. H., S. L. Lo, P. T. Chiueh, W. H. Kuan, and C. L. Chen. 2007. “Microwave enhanced stabilization of heavy metal sludge.” J. Hazard. Mater. 139 (1): 160–166. https://doi.org/10.1016/j.jhazmat.2006.06.019.
ISO. 1994. Soil Quality-Determination of pH. TS 8332/ISO 10390. Geneva, Switzerland: ISO.
Jia, D., and M. T. Afzal. 2008. “Modeling the heat and mass transfer in microwave drying of white oak.” Drying Technol. 26 (9): 1103–1111. https://doi.org/10.1080/07373930802266058.
Jinping, L., G. Jinhua, H. Jieqiong, and W. Ni. 2015. “Study on New Thermal Drying Methods for Sewage Sludge Using Microwave and its Mechanism.” In Proc., 5th Int. Conference on Civil Engineering and Transportation (ICCET 2015). Paris, France: Atlantis Press.
Kacprzak, M., M. Kacprzak, E. Neczaj, K. Fijałkowski, A. Grobelak, A. Grosser, M. Worwag, A. Rorat, H. Brattebo, Å. Almås, and B. R. Singh. 2017. “Sewage sludge disposal strategies for sustainable development.” Environ. Res. 156: 39–46. https://doi.org/10.1016/j.envres.2017.03.010.
Ma, A. Y., L. B. Zhang, J. H. Peng, G. Chen, C. H. Liu, H. Y. Xia, and Y. G. Zuo. 2016. “Dielectric properties and temperature increase of zinc oxide dust derived from volatilization in rotary kilns.” J. Microwave Power Electromagn. Energy 48 (1): 25–34. https://doi.org/10.1080/08327823.2014.11689869.
Marangoni, D. 2013. Sludge’s wealth—Ennobling of sludge for energy use and industrial. Faenza, Italy: Technical Report, European Commission Project.
Menendez, J. A., A. Dominguez, M. Inguanzo, and J. J. Pis. 2005. “Microwave-induced drying, pyrolysis and gasification (MWDPG) of sewage sludge: Vitrification of the solid residue.” J. Anal. Appl. Pyrol. 74 (1–2): 406–412. https://doi.org/10.1016/j.jaap.2004.10.013.
Mirabito, C., A. Narayanan, D. Perez, and B. Stone. 2005. FEMLAB model of a coupled electromagnetic-thermal boundary value problem. Worcester, MA: Polytechnic Institute.
Murthy, T. P. K., and B. Monohar. 2012. “Microwave drying of mango ginger (Curcuma amada Roxb): Prediction of drying kinetics by mathematical modeling and artificial neural network.” Int. J. Food Sci. Technol. 47 (6): 1229–1236. https://doi.org/10.1111/j.1365-2621.2012.02963.x.
Namazi, A. B., D. G. Allen, and C. Q. Jia. 2015. “Microwave-assisted pyrolysis and activation of pulp mill sludge.” Biomass Bioenergy 73: 217–224. https://doi.org/10.1016/j.biombioe.2014.12.023.
Özbek, B., and G. Dadali. 2007. “Thin-layer drying characteristics and modeling of mint leaves undergoing microwave treatment.” J. Food Eng. 83 (4): 541–549. https://doi.org/10.1016/j.jfoodeng.2007.04.004.
Pitchai, K., J. Chen, S. Birla, R. Gonzalez, D. Jones, and J. Subbiah. 2014. “A microwave heat transfer model for a rotating multi-component meal in a domestic oven: Development and validation.” J. Food Eng. 128: 60–71. https://doi.org/10.1016/j.jfoodeng.2013.12.015.
Resurreccion, F. P., D. Luan, J. Tang, F. Liu, Z. Tang, P. D. Pedrow, and R. Cavalieri. 2015. “Effect of changes in microwave frequency on heating patterns of foods in a microwave assisted thermal sterilization system.” J. Food Eng. 150: 99–105. https://doi.org/10.1016/j.jfoodeng.2014.10.002.
Salihoglu, G., and N. K. Salihoglu. 2016. “A review on paint sludge from automotive industries: Generation, characteristics and management.” J. Environ. Manage. 169: 223–235. https://doi.org/10.1016/j.jenvman.2015.12.039.
Sule, O., and N. K. Salihoglu. 2015. “Microwave heating analysis of waste sludge.” Fresen. Environ. Bull. 24 (11B): 3939–3946.
Tyagi, V. K., and S. L. Lo. 2013. “Microwave irradiation: A sustainable way for sludge treatment and resource recovery.” Renewable Sustainable Energy Rev. 18: 288–305. https://doi.org/10.1016/j.rser.2012.10.032.
USEPA. 2006. Emerging Technologies for Biosolids Management, United States Environmental Protection Agency. EPA 832-R-06-005. Washington, DC: USEPA.
Vaxelaire, J., and J. R. Puiggali. 2006. “Analysis of the drying of residual sludge: From the experiment to the simulation of a belt dryer.” Drying Technol. 20 (4–5): 989–1008. https://doi.org/10.1081/DRT-120003773.
Werle, S., and R. K. Wilk. 2010. “A review of methods for the thermal utilization of sewage sludge: The Polish perspective.” Renewable Energy 35 (9): 1914–1919. https://doi.org/10.1016/j.renene.2010.01.019.
Werther, J., and T. Ogada. 1999. “Sewage sludge combustion.” Prog. Energy Combust. Sci. 25 (1): 55–116. https://doi.org/10.1016/S0360-1285(98)00020-3.
Yu, Q., H. Y. Lei, G. W. Yu, X. Feng, Z. X. Li, and Z. C. Wu. 2009. “Influence of microwave irradiation on sludge dewaterability.” Chem. Eng. J. 155 (1–2): 88–93. https://doi.org/10.1016/j.cej.2009.07.010.
Zhang, H., and A. K. Datta. 2016. “Coupled electromagnetic and thermal modeling of microwave oven heating of foods.” J. Microwave Power Electromagn. Energy 35 (2): 71–85. https://doi.org/10.1080/08327823.2000.11688421.
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Published In
Journal of Hazardous, Toxic, and Radioactive Waste
Volume 22 • Issue 4 • October 2018
Copyright
©2018 American Society of Civil Engineers.
History
Received: Oct 28, 2017
Accepted: Jan 30, 2018
Published online: May 25, 2018
Published in print: Oct 1, 2018
Discussion open until: Oct 25, 2018
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