Effectiveness of aerobic pretreatment of municipal solid waste for accelerating biogas generation during simulated landfilling
Munawar Ali1,2, Junli Zhang3, Roberto Raga4, Maria Cristina Lavagnolo4, Alberto Pivato4, Xu Wang1,2, Yuanyuan Zhang1, Raffaello Cossu4, Dongbei Yue1,2()
1. School of Environment, Tsinghua University, Beijing 100084, China 2. Key Laboratory for Solid Waste Management and Environment Safety (Tsinghua University), Ministry of Education of China, Beijing 100084, China 3. Solid waste and Chemical Management Centre, Ministry of Environmental Protection, Beijing 100029, China 4. DII, Department of Industrial Engineering, University of Padova, Via Marzolo 9, 35131 Padova, Italy
Effect of aerobic pretreatment of MSW on landfill gas generation was investigated.
Volatile solid (VS) loss of MSW is an effective and comparable indicator.
Chinese MSW requires at least a reduction of VS about 27% (w/w) prior to disposal.
Aerobic pretreatment of MSW reduced lag phase more than 90% before methanogenesis.
Aerobic pretreatment degree influences quantity of gas generation.
This study evaluates the effectiveness of aerobic pretreatment of municipal solid waste (MSW) on reducing lag phase and accelerating biogas generation. Aerobic pretreatment degree (APD) was determined on the basis of reduction in volatile solids (VS) on a wet weight basis. In this study, intermittent aeration (IA) was applied to three reactors as a main aeration mode; since a single reactor was operated under continuous aeration mode. However, the purpose of the experiment was to reduce VS content of waste, irrespective of the comparison between aeration modes. Fresh MSW was first pretreated aerobically with different aeration rates (10, 40, 60 and 85 L/min/m3) for the period of 30–50 days, resulting in VS-loss equivalent to 20%, 27%, 38% and 53% on w/w basis for the wastes A1, A2, A3 and A4, respectively. The cumulative biogas production, calculated based on the modified Gompertz model were 384, 195, 353, 215, and 114 L/kg VS for the wastes A0, A1, A2, A3 and A4, respectively. Untreated waste (A0) showed a long lag phase; whereas the lag phases of pretreated MSW were reduced by more than 90%. Aerobically pretreated wastes reached stable methanogenic phase within 41 days compared to 418 days for untreated waste. The waste mass decreased by about 8% to 27% compared to untreated MSW, indicative that even more MSW could be placed in the same landfill. The study confirmed the effectiveness of aerobic pretreatment of MSW prior to landfilling on reducing lag phase and accelerating biogas generation.
Cossu R, Lai T, Sandon A. Standardization of BOD5/COD ratio as a biological stability index for MSW. Waste Management (New York, N.Y.), 2012, 32(8): 1503–1508 https://doi.org/10.1016/j.wasman.2012.04.001
pmid: 22549125
2
Di Maria F, Micale C. A holistic life cycle analysis of waste management scenarios at increasing source segregation intensity: the case of an Italian urban area. Waste Management (New York, N.Y.), 2014, 34(11): 2382–2392 https://doi.org/10.1016/j.wasman.2014.06.007
pmid: 25008299
3
Salati S, Scaglia B, di Gregorio A, Carrera A, Adani F. Mechanical biological treatment of organic fraction of MSW affected dissolved organic matter evolution in simulated landfill. Bioresource Technology, 2013, 142(Supplement C): 115–120 https://doi.org/10.1016/j.biortech.2013.05.049
pmid: 23743423
4
Scaglia B, Salati S, Di Gregorio A, Carrera A, Tambone F, Adani F. Short mechanical biological treatment of municipal solid waste allows landfill impact reduction saving waste energy content. Bioresource Technology, 2013, 143(Supplement C): 131–138 https://doi.org/10.1016/j.biortech.2013.05.051
pmid: 23792663
5
Gioannis G D, Muntoni A, Cappai G, Milia S. Landfill gas generation after mechanical biological treatment of municipal solid waste. Estimation of gas generation rate constants. Waste Management (New York, N.Y.), 2009, 29(3): 1026–1034 https://doi.org/10.1016/j.wasman.2008.08.016
pmid: 18954969
6
Ritzkowski M, Stegmann R. Landfill aeration within the scope of post-closure care and its completion. Waste Management (New York, N.Y.), 2013, 33(10): 2074–2082 https://doi.org/10.1016/j.wasman.2013.02.004
pmid: 23474341
7
Erses A S, Onay T T, Yenigun O. Comparison of aerobic and anaerobic degradation of municipal solid waste in bioreactor landfills. Bioresource Technology, 2008, 99(13): 5418–5426 https://doi.org/10.1016/j.biortech.2007.11.008
pmid: 18082400
8
Mahar R B, Liu J, Li H, Nie Y. Bio-pretreatment of municipal solid waste prior to landfilling and its kinetics. Biodegradation, 2009, 20(3): 319–330 https://doi.org/10.1007/s10532-008-9222-2
pmid: 18923914
9
Gerassimidou S, Evangelou A, Komilis D. Aerobic biological pretreatment of municipal solid waste with a high content of putrescibles: Effect on landfill emissions. Waste Management & Research, 2013, 31(8): 783–791 https://doi.org/10.1177/0734242X13493959
pmid: 23771878
10
Lornage R, Redon E, Lagier T, Hébé I, Carré J. Performance of a low cost MBT prior to landfilling: Study of the biological treatment of size reduced MSW without mechanical sorting. Waste Management (New York, N.Y.), 2007, 27(12): 1755–1764 https://doi.org/10.1016/j.wasman.2006.10.018
pmid: 17207988
11
Broun R, Sattler M. A comparison of greenhouse gas emissions and potential electricity recovery from conventional and bioreactor landfills. Journal of Cleaner Production, 2016, 112(Part 4): 2664–2673 https://doi.org/10.1016/j.jclepro.2015.10.010
12
Amini H R, Reinhart D R. Regional prediction of long-term landfill gas to energy potential. Waste Management (New York, N.Y.), 2011, 31(9): 2020–2026 https://doi.org/10.1016/j.wasman.2011.05.010
pmid: 21703844
13
Li S, Yoo H K, Macauley M, Palmer K, Shih J S. Assessing the role of renewable energy policies in landfill gas to energy projects. Energy Economics, 2015, 49(Supplement C): 687–697 https://doi.org/10.1016/j.eneco.2015.03.022
14
Fazeli A, Bakhtvar F, Jahanshaloo L, Che Sidik N A, Bayat A E. Malaysia’s stand on municipal solid waste conversion to energy: A review. Renewable and Sustainable Energy Reviews, 2016, 58(Supplement C): 1007–1016 https://doi.org/10.1016/j.rser.2015.12.270
Nie Y. The technology and policy of urban solid waste disposal in China. International Journal of Environmental Studies, 2010, 67(2): 183–193 https://doi.org/10.1080/00207231003683556
17
Xu Q, Tian Y, Wang S, Ko J H. A comparative study of leachate quality and biogas generation in simulated anaerobic and hybrid bioreactors. Waste Management (New York, N.Y.), 2015, 41(Supplement C): 94–100 https://doi.org/10.1016/j.wasman.2015.03.023
pmid: 25857421
18
Ni Z, Liu J, Girotto F, Cossu R, Qi G. Targeted modification of organic components of municipal solid waste by short-term pre-aeration and its enhancement on anaerobic degradation in simulated landfill bioreactors. Bioresource Technology, 2016, 216(Supplement C): 250–259 https://doi.org/10.1016/j.biortech.2016.05.088
pmid: 27243602
19
Fang J J, Yang N, Cen D Y, Shao L M, He P J. Odor compounds from different sources of landfill: characterization and source identification. Waste Management (New York, N.Y.), 2012, 32(7): 1401–1410 https://doi.org/10.1016/j.wasman.2012.02.013
pmid: 22480726
20
Zhou C, Gong Z, Hu J, Cao A, Liang H. A cost-benefit analysis of landfill mining and material recycling in China. Waste Management (New York, N.Y.), 2015, 35(Supplement C): 191–198 https://doi.org/10.1016/j.wasman.2014.09.029
pmid: 25453315
21
Ying D, Chuanyu C, Bin H, Yueen X, Xuejuan Z, Yingxu C, Weixiang W. Characterization and control of odorous gases at a landfill site: A case study in Hangzhou, China. Waste Management (New York, N.Y.), 2012, 32(2): 317–326 https://doi.org/10.1016/j.wasman.2011.07.016
pmid: 22137772
22
National Bureau of Statistics of China. China Statistical Yearbook. Beijing: China Statistics Press, 2016 (in Chinese)
23
Cai B, Wang J, Long Y, Li W, Liu J, Ni Z, Bo X, Li D, Wang J, Chen X, Gao Q, Zhang L. Evaluating the impact of odors from the 1955 landfills in China using a bottom-up approach. Journal of Environmental Management, 2015, 164(Supplement C): 206–214 https://doi.org/10.1016/j.jenvman.2015.09.009
pmid: 26398549
24
De Clercq D, Wen Z, Fan F, Caicedo L. Biomethane production potential from restaurant food waste in megacities and project level-bottlenecks: A case study in Beijing. Renewable and Sustainable Energy Reviews, 2016, 59(Supplement C): 1676–1685 https://doi.org/10.1016/j.rser.2015.12.323
25
Zhang H, Wen Z, Chen Y. Environment and economic feasibility of municipal solid waste central sorting strategy: a case study in Beijing. Frontiers of Environmental Science & Engineering, 2016, 10(4): 10 https://doi.org/10.1007/s11783-016-0852-z
26
Sun Y, Yue D, Li R, Yang T, Liu S. Assessing the performance of gas collection systems in select Chinese landfills according to the LandGEM model: Drawbacks and potential direction. Environmental Technology (United Kingdom), 2015, 36(23): 2912–2918
27
Zhang Y, Yue D, Liu J, Lu P, Wang Y, Liu J, Nie Y. Release of non-methane organic compounds during simulated landfilling of aerobically pretreated municipal solid waste. Journal of Environmental Management, 2012, 101(Supplement C): 54–58 https://doi.org/10.1016/j.jenvman.2011.10.018
pmid: 22406844
28
Zhang Y, Yue D, Nie Y. Greenhouse gas emissions from two-stage landfilling of municipal solid waste. Atmospheric Environment, 2012, 55(Supplement C): 139–143 https://doi.org/10.1016/j.atmosenv.2012.03.056
29
Zhao Y, Christensen T H, Lu W, Wu H, Wang H. Environmental impact assessment of solid waste management in Beijing City, China. Waste Management (New York, N.Y.), 2011, 31(4): 793–799 https://doi.org/10.1016/j.wasman.2010.11.007
pmid: 21145723
Shao L M, He P J, Zhang H, Yu X H, Li G J. Methanogenesis acceleration of fresh landfilled waste by micro-aeration. Journal of Environmental Sciences-China, 2005, 17(3): 371–374
pmid: 16083105
Yue D, Han B, Sun Y, Yang T. Sulfide emissions from different areas of a municipal solid waste landfill in China. Waste Management (New York, N.Y.), 2014, 34(6): 1041–1044 https://doi.org/10.1016/j.wasman.2013.07.020
pmid: 23948050
34
Wang L, Pei T, Huang C, Yuan H. Management of municipal solid waste in the Three Gorges region. Waste Management (New York, N.Y.), 2009, 29(7): 2203–2208 https://doi.org/10.1016/j.wasman.2009.02.008
pmid: 19318240
35
Mahar R B, Liu J, Yue D, Nie Y. Landfilling of pretreated municipal solid waste by natural convection of air and its effects. Journal of Environmental Science and Health, Part A, 2007, 42(3): 351–359 https://doi.org/10.1080/10934520601144659
pmid: 17365302
36
Mahar R B, Liu J, Yue D, Nie Y. Biodegradation of organic matters from mixed unshredded municipal solid waste through air convection before landfilling. Journal of the Air & Waste Management Association, 2007, 57(1):39–46 https://doi.org/10.1080/10473289.2007.10465296
pmid: 17269228
37
Norbu T, Visvanathan C, Basnayake B. Pretreatment of municipal solid waste prior to landfilling. Waste Management (New York, N.Y.), 2005, 25(10): 997–1003 https://doi.org/10.1016/j.wasman.2005.06.006
pmid: 16112563
38
Dennehy C, Lawlor P G, Jiang Y, Gardiner G E, Xie S, Nghiem L D, Zhan X. Greenhouse gas emissions from different pig manure management techniques: a critical analysis. Frontiers of Environmental Science & Engineering, 2017, 11(3): 11
39
van Praagh M, Heerenklage J, Smidt E, Modin H, Stegmann R, Persson K M. Potential emissions from two mechanically-biologically pretreated (MBT) wastes. Waste Management (New York, N.Y.), 2009, 29(2): 859–868 https://doi.org/10.1016/j.wasman.2008.06.028
pmid: 18782660
40
Zach A, Binner E, Latif M. Improvement of municipal solid waste quality for landfilling by means of mechanical-biological pretreatment. Waste Management & Research, 2000, 18(1): 25–32
41
Peces M, Astals S, Mata-Alvarez J. Assessing total and volatile solids in municipal solid waste samples. Environmental Technology, 2014, 35(24): 3041–3046 https://doi.org/10.1080/09593330.2014.929182
pmid: 25244131
42
Mahar R B, Sahito A R, Yue D, Khan K. Modeling and simulation of landfill gas production from pretreated MSW landfill simulator. Frontiers of Environmental Science & Engineering, 2016, 10(1): 159–167 https://doi.org/10.1007/s11783-014-0685-6
43
Mali Sandip T, Khare Kanchan C, Biradar Ashok H. Enhancement of methane production and bio-stabilisation of municipal solid waste in anaerobic bioreactor landfill. Bioresource Technology, 2012, 110(Supplement C): 10–17 https://doi.org/10.1016/j.biortech.2011.12.027
pmid: 22342079
44
Cossu R, Morello L, Raga R, Cerminara G. Biogas production enhancement using semi-aerobic pre-aeration in a hybrid bioreactor landfill. Waste Management (New York, N.Y.), 2016, 55(Supplement C): 83–92 https://doi.org/10.1016/j.wasman.2015.10.025
pmid: 26531047
45
Nikolaou A, Giannis A, Gidarakos E. Comparative studies of aerobic and anaerobic treatment of MSW organic fraction in landfill bioreactors. Environmental Technology, 2010, 31(12): 1381–1389 https://doi.org/10.1080/09593331003743104
pmid: 21121461
46
Di Maria F, Sordi A, Micale C. Experimental and life cycle assessment analysis of gas emission from mechanically-biologically pretreated waste in a landfill with energy recovery. Waste Management (New York, N.Y.), 2013, 33(11): 2557–2567 https://doi.org/10.1016/j.wasman.2013.07.011
pmid: 23910244
47
Luo J, Qian G, Liu J, Xu Z P. Anaerobic methanogenesis of fresh leachate from municipal solid waste: A brief review on current progress. Renewable & Sustainable Energy Reviews, 2015, 49(Supplement C): 21–28 https://doi.org/10.1016/j.rser.2015.04.053
Ağdağ O N, Sponza D T. Effect of aeration on the performance of a simulated landfilling reactor stabilizing municipal solid wastes. Journal of Environmental Science and Health, Part A, 2004, 39(11–12): 2955–2972 https://doi.org/10.1081/LESA-200034316
pmid: 15533016