Co-digestion potential of different industrial sludge sources and impact on energy recovery

Year 2023, Volume: 6 Issue: 4, 317 - 325, 31.12.2023

Melek Şebnem Temel , Cigdem Yangin-gomec

https://doi.org/10.35208/ert.1225752

Abstract

Co-digestion potential of the wastewater treatment sludges produced at two industries with different characteristics was investigated in anaerobic batch reactors operated at mesophilic (35±2 °C) condition. The sludge sources selected were from a food industry producing edible oil and from a textile industry producing woven fabric. Reactor performance was evaluated by the conventional parameters as well as by monitoring the biogas production during co-digestion of both industrial sludges at equal mixing proportions. Results indicated that both of these sludge sources had substantial biogas production potential with a cumulative biogas yield more than 425 mL/g-VSSfed whereas it was about 5-fold lower only for the food sludge. On the other hand, chemical oxygen demand (COD) removal reached to about 90% during co-digestion with a well recovery of pH value and alkalinity concentration for sufficient buffering at the end of incubation. Therefore, by the combination of different industrial sludges through co-digestion; higher digestion performance and improved methane yield could be achieved due to better balanced substrate and nutrients. Regarding the initial heavy metals in the supernatant phase of the mixed sludge; iron (Fe), zinc (Zn), nickel (Ni), aluminum (Al), and manganese (Mn) could be removed from 56% to 80% while no apparent removals were observed in cadmium (Cd) and lead (Pb) at the end of operation. Hence, these potential toxic pollutants in the digestate should be taken into consideration while deciding the most appropriate resource recovery and ultimate disposal methods.

Keywords

Anaerobic digestion, biogas yield, food industry, heavy metals, textile industry

References

• C. Rashama, G. Ijoma, and T. Matambo, “Biogas generation from by-products of edible oil processing: a review of opportunities, challenges and strategies,” Biomass Conversion and Biorefinery, Vol. 9, pp. 803–826, 2019. [CrossRef]
• Z. S. Lee, S. Y. Chin, J. W. Lim, T. Witoon, and C. K. Cheng, “Treatment technologies of palm oil mill effluent (POME) and olive mill wastewater (OMW): A brief Review,” Environmental Technology & Innovation, Vol. 15, Article 100377, 2019. [CrossRef]
• R. Katal, H. Zare, S. O. Rastegar, P. Mavaddat, and G. N. Darzi, “Removal of dye and chemical oxygen demand (COD) reduction from textile industrial wastewater using hybrid bioreactors,” Environmental Engineering and Management Journal, Vol. 13, pp. 4350, 2014. [CrossRef]
• K. Sarayu, and S. Sandhya, “Current technologies for biological treatment of textile wastewater--a review,” Applied Biochemistry and Biotechnology, Vol. 167, pp. 645661, 2012. [CrossRef]
• W. I. Ngoie, O. O. Oyekola, D. Ikhu-Omoregbe, and P. J. Welz, “Valorisation of edible oil wastewater sludge: Bioethanol and biodiesel production,” Waste and Biomass Valorization, Vol. 11, pp. 24312440, 2020. [CrossRef]
• C. Yangin-Gomec, E. Yarsur, and O.Y. Ozcan, “Energy recovery during anaerobic treatment of lignocellulosic wastewater with dynamic modeling and simulation results,” Biomass Conversion and Biorefinery, Vol. 13, pp. 9227–9236, 2021. [CrossRef]
• J.N. Meegoda, B. Li, K. Patel, and L.B. Wang, “A review of the processes, parameters, and optimization of anaerobic digestion,” International Journal of Environmental Research and Public Health, Vol. 15, Article 2224, 2018. [CrossRef]
• H. A. Bahçeci, S. L. Sanin, and F. D. Sanin, “Co-digestion potential of industrial sludges with municipal sludge,” Waste and Biomass Valorization, Vol. 12, pp. 5437–5449, 2021. [CrossRef]
• A. Rabii, S. Aldin, Y. Dahman, and E. Elbeshbishy, “A review on anaerobic co-digestion with a focus on the microbial populations and the effect of multi-stage digester configuration,” Energies, Vol. 12, Article 1106, 2019. [CrossRef] B. K. Al bkoor Alrawashdeh, “Improving anaerobic co-digestion of sewage sludge with thermal dried olive mill wastewater,” Waste Biomass Valorization, Vol. 10, pp. 2113–2119, 2018. [CrossRef]
• K.A. Alrawashdeh, E. Gul, Q. Yang, H. Yang, P. Bartocci, and F. Fantozzi, “Effect of heavy metals in the performance of anaerobic digestion of olive mill waste,” Processes, Vol. 8, Article 1146, 2020. [CrossRef]
• P. Kumar, S. Samuchiwal, and A. Malik, “Anaerobic digestion of textile industries wastes for biogas production,” Biomass Conversion and Biorefinery, Vol. 10, pp. 715–724, 2020. [CrossRef]
• S. Babel, and D. del Mundo Dacera, “Heavy metal removal from contaminated sludge for land application: A review,” Waste Management, Vol. 26, pp. 9881004, 2006. [CrossRef]
• J. K. Milik, R. Pasela, M. Lachowicz, and M. Chalamoński, “The concentration of trace elements in sewage sludge from wastewater treatment plant in Gniewino,” Journal of Ecological Engineering, Vol. 18, pp. 118124, 2017. [CrossRef]
• H. Morita, and H. Tsuboi, “Basic investigation on the chemical forms of heavy metals in a sewage treatment plant,” Water Science and Technology, Vol. 42, pp. 159–165, 2000. [CrossRef]
• B. Bayraklı, O. Dengiz, M. A. Özyazıcı, Y. Koç, E. Kesim, and F. Türkmen, “Assessment of heavy metal concentrations and behavior in cultivated soils under humid-subhumid environmental condition of the Black Sea region,” Geoderma Regional, Vol. 32, Article e00593, 2023. [CrossRef]
• B. Zhang, X. Zhou, X. Ren, X. Hu, and B. Ji, “Recent research on municipal sludge as soil fertilizer in China: a review,” Water, Air, & Soil Pollution, Vol. 234, Article 119, 2023. [CrossRef]
• N. Quang-Minh, B. Duy-Cam, P. Thao, D. Van-Huong, N. Thi-Nham, N. Minh-Viet, T. Thien-Hien, and D. Quang-Trung, “Investigation of heavy metal effects on the anaerobic co-digestion process of waste activated sludge and septic tank sludge,” International Journal of Chemical Engineering, Vol. 2019, Article 5138060, 2019. [CrossRef]
• İ. Öztürk, İ., and Ç. Yangın-Gömeç, Çamurların İşlenmesi, Arıtılması ve Uzaklaştırılması, İ. Öztürk, Ed. Atıksu Mühendisliği, Bölüm 9, İstanbul, Türkiye: İSKİ, pp. 341416, 2017. [Turkish]
• American Public Health Association. Standard Methods for the Examination of Water and Wastewater, 21st Ed., American Public Health Association (APHA) Press, Washington, United States, 2005.
• U.S. EPA. 1994. “Method 200.7: Determination of Metals and Trace Elements in Water and Wastes by Inductively Coupled Plasma-Atomic Emission Spectrometry,” Revision 4.4. Cincinnati, OH. https://www.epa.gov/esam/method-2007-determination-metals-and-trace-elements-water-and-wastes-inductively-coupled Accessed on Nov 10, 2023.
• M.Ş. Çalışkan-Temel, “Anaerobic Co-Digestion of Industrial Wastewater Sludges: An Investigation on Heavy Metal Contents and Energy Recovery,” Master thesis, Istanbul Technical University, 2022.
• S. Karri, R. Sierra-Alvarez, and J. A. Field, “Toxicity of copper to acetoclastic and hydrogenotrophic activities of methanogens and sulfate reducers in anaerobic sludge,” Chemosphere, Vol. 62, pp. 121127, 2006. [CrossRef]
• L. Altaş, “Inhibitory effect of heavy metals on methane-producing anaerobic granular sludge,” Journal of Hazardous Materials, Vol. 162, pp. 15511556, 2009. [CrossRef]
• D. Xiao, H. Li, Y. Wang, G. Wen, and C. Wang, “Distribution characteristics of typical heavy metals in sludge from wastewater plants in Jiangsu Province (China) and their potential risks,” Water, Vol. 15, Article 313, 2023. [CrossRef]
• R. Türksoy, G. Terzioglu, and İ. E. Yalçın, Ö. Türksoy, and G. Demir, “Removal of heavy metals from textile industry wastewater,” Frontiers in Life Sciences and Related Technologies, Vol. 2, pp. 4450, 2021. [CrossRef]
• J. Kaur, S. S. Bhatti, S. A. Bhat, A. K. Nagpal, V. Kaur, and J. K. Katnoria, “Evaluating potential ecological risks of heavy metals of textile effluents and soil samples in vicinity of textile industries,” Soil System, Vol. 5, Article 63, 2021. [CrossRef]
• H. I. Abdel-Shafy, and M. S. M. Mansour, “Biogas production as affected by heavy metals in the anaerobic digestion of sludge,” Egyptian Journal of Petroleum, Vol. 23, pp. 409417, 2014. [CrossRef]
• W. Zhang, L. Zhang, and A. Li, “Enhanced anaerobic digestion of food waste by trace metal elements supplementation and reduced metals dosage by green chelating agent [S, S]-EDDS via improving metals bioavailability,” Water Research, Vol. 84, pp. 266277, 2015. [CrossRef]
• R. Kadam, K. Khanthong, H. Jang, J. Lee, and J. Park, “Occurrence, fate, and implications of heavy metals during anaerobic digestion: A review,” Energies, Vol. 15, Article 8618, 2022. [CrossRef]
• Official Gazette. Regulation on the Usage of Domestic and Municipal Treatment Sludge in Soil, Republic of Turkiye Ministry of Environment and Forestry, Official Gazette, No: 27661, Date: 03/08/2010.