Food waste-to-energy conversion technologies: Current status and future directions

Waste Management

Volumn 38, Issue 1, 2015, Pages 399-408

  Pham, Thi Phuong Thuy ^a   Kaushik, Rajni ^a   Parshetti, Ganesh K ^a   Mahmood, Russell ^a   Balasubramanian, Rajasekhar ^a  

^a NATIONAL UNIVERSITY OF SINGAPORE   (Singapore)

Author keywords

Anaerobic digestion; Fermentation; Food waste; Gasification; Hydrothermal carbonization; Incineration

Indexed keywords

ANAEROBIC DIGESTION; CARBONIZATION; COMPETITION; ENERGY CONVERSION; FERMENTATION; FOOD WASTE; GASIFICATION; HEALTH RISKS; INCINERATION; MUNICIPAL SOLID WASTE; RENEWABLE ENERGY RESOURCES;

COMPETITIVE ADVANTAGE; ENVIRONMENTAL BURDENS; HIGH MOISTURE CONTENTS; HYDROTHERMAL CARBONIZATION; HYDROTHERMAL OXIDATION; RENEWABLE ENERGY GENERATION; THERMOCHEMICAL TECHNOLOGIES; WASTE TO ENERGY CONVERSION;

WASTE INCINERATION;

ALCOHOL; AMMONIA; BIOGAS; CALCIUM; CARBON DIOXIDE; CARBON MONOXIDE; HYDROGEN; HYDROGEN CYANIDE; MAGNESIUM; METHANE; NITROGEN; OXYGEN; POTASSIUM; SODIUM; SOLID WASTE;

ANOXIC CONDITIONS; FERMENTATION; FUTURE PROSPECT; HYDROTHERMAL ACTIVITY; INCINERATION; REACTION KINETICS; THERMOCHEMISTRY; WASTE TECHNOLOGY;

ANAEROBIC DIGESTION; CONCENTRATION (PARAMETERS); ENERGY CONVERSION; ENERGY YIELD; FERMENTATION; FOOD WASTE; GASIFICATION; HUMAN; HYDROTHERMAL CARBONIZATION; INCINERATION; MOISTURE; MUNICIPAL SOLID WASTE; PRIORITY JOURNAL; PYROLYSIS; RECYCLING; REVIEW; RISK FACTOR; SYSTEMATIC REVIEW; TECHNOLOGY; THERMAL ANALYSIS; THERMOCHEMICAL TECHNOLOGY; ANAEROBIC GROWTH; ANALYSIS; DEVICES; OXIDATION REDUCTION REACTION; PROCEDURES; SOLID WASTE; WASTE; WASTE MANAGEMENT;

ANAEROBIOSIS; FERMENTATION; GARBAGE; INCINERATION; OXIDATION-REDUCTION; SOLID WASTE; WASTE MANAGEMENT;

EID: 84933500834     PISSN: 0956053X     EISSN: 18792456     Source Type: Journal    
DOI: 10.1016/j.wasman.2014.12.004     Document Type: Review

References (126)

1. Ahmed I.I., Gupta A.K. Pyrolysis and gasification of food waste: syngas characteristics and char gasification kinetics. Appl. Energy 2010, 87(1):101-108.
2. Alvarez R., Lidén G. Semi-continuous co-digestion of solid slaughterhouse waste, manure, and fruit and vegetable waste. Renew. Energy 2008, 33(4):726-734.
3. Amoo O.M., Fagbenle R.L. Renewable municipal solid waste pathways for energy generation and sustainable development in the Nigerian context. Int. J. Energy Environ. Eng. 2013, 4:42-59.
4. Arafat H.A., Jijakli K., Ahsan A. Environmental performance and energy recovery potential of five processes for municipal solid waste treatment. J. Clean. Prod. 2013, 10.1016/j.jclepro.2013.11.071.
5. Arapoglou D., Varzakas T., Vlyssides A., Israilides C. Ethanol production from potato peel waste (PPW). Waste Manage. 2010, 30(10):1898-1902.
6. Arena U. Process and technological aspects of municipal solid waste gasification. A review. Waste Manage. 2012, 32(4):625-639.
7. Autret E., Berthier F., Luszezanec A., Nicolas F. Incineration of municipal and assimilated wastes in France: assessment of latest energy and material recovery performances. J. Hazard. Mater. 2007, 139(3):569-574.
8. Balat M. Production of bioethanol from lignocellulosic materials via the biochemical pathway: a review. Energy Convers. Manage. 2011, 52(2):858-875.
9. Ban-Koffi L., Han Y.W. Alcohol production from pineapple waste. World J. Microbiol. Biotechnol. 1990, 6:281-284.
10. Banks C.J., Chesshire M., Heaven S., Arnold R. Anaerobic digestion of source-segregated domestic food waste: performance assessment by mass and energy balance. Bioresour. Technol. 2011, 102:612-620.
11. )2 and bentonite without intermediate solid/liquid separation. Water Sci. Technol. 2001, 43(11):275-282.
12. Berge N.D., Ro K.S., Mao J., Flora J.R., Chappell M.A., Bae S. Hydrothermal carbonization of municipal waste streams. Environ. Sci. Technol. 2011, 45(13):5696-5703.
13. Boluda-Aguilar M., Garcia-Vidal L., Gonzalez-Castaneda Fdel P., Lopez-Gomez A. Mandarin peel wastes pretreatment with steam explosion for bioethanol production. Bioresour. Technol. 2010, 101(10):3506-3513.
14. Bouallagui H., Ben Cheikh R., Marouani L., Hamdi M. Mesophilic biogas production from fruit and vegetable waste in a tubular digester. Bioresour. Technol. 2003, 86:85-89.
15. Bouallagui H., Touhami Y., Ben Cheikh R., Hamdi M. Bioreactor performance in anaerobic digestion of fruit and vegetable wastes. Process Biochem. 2005, 40(3-4):989-995.
16. Bouallagui H., Rachdi B., Gannoun H., Hamdi M. Mesophilic and thermophilic anaerobic co-digestion of abattoir wastewater and fruit and vegetable waste in anaerobic sequencing batch reactors. Biodegradation 2009, 20(3):401-409.
17. Busch D., Stark A., Kammann C.I., Glaser B. Genotoxic and phytotoxic risk assessment of fresh and treated hydrochar from hydrothermal carbonization compared to biochar from pyrolysis. Ecotoxicol. Environ. Saf. 2013, 97:59-66.
18. Cao D., Sun Y., Wang G. Direct carbon fuel cell: fundamentals and recent developments. J. Power Sources 2007, 167(2):250-257.
19. Cao X., Ro K.S., Libra J.A., Kammann C.I., Lima I., Berge N., Li L., Li Y., Chen N., Yang J., Deng B., Mao J. Effects of biomass types and carbonization conditions on the chemical characteristics of hydrochars. J. Agric. Food Chem. 2013, 61:9401-9411.
20. Castillo M.E.F., Cristancho D.E., Arellano A.V. Study of the operational conditions for anaerobic digestion of urban solid wastes. Waste Manage. 2006, 26(5):546-556.
21. Caton P.A., Carr M.A., Kim S.S., Beautyman M.J. Energy recovery from waste food by combustion or gasification with the potential for regenerative dehydration: a case study. Energy Convers. Manage. 2010, 51(6):1157-1169.
22. Chanakya H.N., Ramachandra T.V., Vijayachamundeeswari M. Resource recovery potential from secondary components of segregated municipal solid wastes. Environ. Monit. Assess. 2007, 135(1-3):119-127.
23. Chen Y., Cheng J.J., Creamer K.S. Inhibition of anaerobic digestion process: a review. Bioresour. Technol. 2008, 99(10):4044-4064.
24. Demirbas A. Gaseous products from biomass by pyrolysis and gasification: effects of catalyst on hydrogen yield. Energy Convers. Manage. 2002, 43:897-909.
25. Demirbas A. Effect of temperature on pyrolysis products from biomass. Energy Sources Part A 2007, 29(4):329-336.
26. Digman B., Kim D.-S. Review: alternative energy from food processing wastes. Environ. Prog. 2008, 27(4):524-537.
27. European Commission Final Report-Preparatory Study on Food Waste across EU27 2010, Bio Intelligence Service, Paris.
28. FAO-Food and Agriculture Organization, 2009. How to Feed the World in 2050. Food and Agriculture Organization.
29. FAO-Food and Agriculture Organization Global Food Losses and Food Waste-Extent, Causes and Prevention 2011, Food and Agriculture Organization, Rome.
30. Forster-Carneiro T., Perez M., Romero L.I. Influence of total solid and inoculum contents on performance of anaerobic reactors treating food waste. Bioresour. Technol. 2008, 99(15):6994-7002.
31. Forster-Carneiro T., Perez M., Romero L.I. Thermophilic anaerobic digestion of source-sorted organic fraction of municipal solid waste. Bioresour. Technol. 2008, 99(15):6763-6770.
32. Fountoulakis M.S., Drakopoulou S., Terzakis S., Georgaki E., Manios T. Potential for methane production from typical Mediterranean agro-industrial by-products. Biomass Bioenergy 2008, 32(2):155-161.
33. Funke A., Ziegler F. Hydrothermal carbonization of biomass: a summary and discussion of chemical mechanisms for process engineering. Biofuels Bioprod. Bioref. 2010, 4(2):160-177.
34. Garcia L., Salvador M.L., Bilbao R., Arauzo J. Influence of calcination and reduction conditions on the catalyst performance in the pyrolysis process of biomass. Energy Fuel 1998, 12:139-143.
35. Gómez X., Cuetos M.J., Cara J., Morán A., García A.I. Anaerobic co-digestion of primary sludge and the fruit and vegetable fraction of the municipal solid wastes. Renew. Energy 2006, 31(12):2017-2024.
36. Goto M., Obuchi R., Hirose T., Sakaki T., Shibata M. Hydrothermal conversion of municipal organic waste into resources. Bioresour. Technol. 2004, 93(3):279-284.
37. Grosso M., Motta A., Rigamonti L. Efficiency of energy recovery from waste incineration, in the light of the new Waste Framework Directive. Waste Manage. 2010, 30(7):1238-1243.
38. Guermoud N., Ouadjnia F., Abdelmalek F., Taleb F., Addou A. Municipal solid waste in Mostaganem city (Western Algeria). Waste Manage. 2009, 29(2):896-902.
39. Hammond J.B., Egg R., Diggins D., Coble C.G. Alcohol from bananas. Bioresour. Technol. 1996, 56:125-130.
40. Heermann C., Schwager F.J., Whiting K.J. Pyrolysis & Gasification of Waste. A Worldwide Technology & Business Review 2001, Juniper Consultancy Services Ltd. second ed.
41. Heilmann S.M., Jader L.R., Sadowsky M.J., Schendel F.J., Keitz M.G.V., Valentas K.J. Hydrothermal carbonization of distiller's grains. Biomass Bioenergy 2011, 35:2526-2533.
42. Higman C., van der Burgt M. Gasification 2008, Gulf Professional Publishing, Oxford, UK. second ed.
43. Hoekman S.K., Broch A., Robbins C. Hydrothermal carbonization (HTC) of lignocellulosic biomass. Energy Fuel 2011, 25(4):1802-1810.
44. Huff M.D., Kumar S., Lee J.W. Comparative analysis of pinewood, peanut shell, and bamboo biomass derived biochars produced via hydrothermal conversion and pyrolysis. J. Environ. Manage. 2014, 146:303-308.
45. Hwang I.H., Aoyama H., Matsuto T., Nakagishi T., Matsuo T. Recovery of solid fuel from municipal solid waste by hydrothermal treatment using subcritical water. Waste Manage. 2012, 32(3):410-416.
46. IPCC (Intergovernmental Panel on Climate Change), 2006. In: Eggleston, S., Buendia, L., Miwa, K., Ngara, T., Tanabe, K. (Eds.), Waste Generation, Composition and Management Data (Chapter 2).
47. Izumi K., Okishio Y.K., Niwa C., Yamamoto S., Toda T. Effects of particle size on anaerobic digestion of food waste. Int. Bio-deteriro. Biodegr. 2010, 64:601-608.
48. Joshi V.K. Food processing industries' waste: opportunities, technologies, challenges and future strategies. Biotechnology in Agriculture and Environment 2002, 129-148. Asiatech Publishers, New Delhi. J.K. Arora, S.S. Marwaha, R. Grover (Eds.).
49. Kabouris J.C., Tezel U., Pavlostathis S.G., Engelmann M., Dulaney J., Gillette R.A., Todd A.C. Methane recovery from the anaerobic codigestion of municipal sludge and FOG. Bioresour. Technol. 2009, 100(15):3701-3705.
50. Kang K., Quitain A.T., Daimon H., Noda R., Goto N., Hu H.Y., Fujie K. Optimization of amino acids production from waste fish entrails by hydrolysis in sub- and supercritical water. Can. J. Chem. Eng. 2001, 79(1):65-70.
51. Kang S., Li X., Fan J., Chang J. Characterization of hydrochars produced by hydrothermal carbonization of lignin, cellulose, d-xylose, and wood meal. Ind. Eng. Chem. Res. 2012, 51(26):9023-9031.
52. Karagiannidis A., Perkoulidis G. A multi-criteria ranking of different technologies for the anaerobic digestion for energy recovery of the organic fraction of municipal solid wastes. Bioresour. Technol. 2009, 100(8):2355-2360.
53. Katami T., Yasuhara A., Shibamoto T. Formation of dioxins from incineration of foods found in domestic garbage. Environ. Sci. Technol. 2004, 38:1062-1065.
54. Kaushik R., Parshetti G., Liu Z., Balasubramanian R. Enzyme-assisted hydrothermal treatment of food waste for co-production of hydrochar and bio-oil. Bioresour. Technol. 2014, 168:267-274.
55. Khalid A., Arshad M., Anjum M., Mahmood T., Dawson L. The anaerobic digestion of solid organic waste. Waste Manage. 2011, 31:1737-1744.
56. Kim H.J., Kim S.H., Choi Y.G., Kim G.D., Chung T.H. Effect of enzymatic pretreatment on acid fermentation of food waste. J. Chem. Technol. Biotechnol. 2006, 81(6):974-980.
57. Kim J.K., Oh B.R., Chun Y.N., Kim S.W. Effects of temperature and hydraulic retention time on anaerobic digestion of food waste. J. Biosci. Bioeng. 2006, 102(4):328-332.
58. Kim J.H., Lee J.C., Pak D. Feasibility of producing ethanol from food waste. Waste Manage. 2011, 31(9-10):2121-2125.
59. Kim M.H., Song H.B., Song Y., Jeong I.T., Kim J.W. Evaluation of food waste disposal options in terms of global warming and energy recovery: Korea. Int. J. Energy Environ. Eng. 2013, 4:1-12.
60. Kivaisi A.K., Eliapenda S. Pretreatment of bagasse and coconut fibres for enhanced anaerobic degradation by rumen microorganisms. Renew. Energy 1994, 5:791-795.
61. Knoef, H., 2005. Practical aspects of biomass gasification. In: Knoef, H. (Ed.), Handbook Biomass Gasification. BTG-Biomass Technology Group. Enschede, The Netherlands. ISBN: 90-810068-1-9.
62. Korkie L.J., Janse B.J.H., Viljoen-Bloom M. Utilizing grape pomace for ethanol production. S. Afr. J. Enol. Viticult. 2002, 23:31-36.
63. Kosseva, M.R., 2009. Processing of food wastes. In: Taylor, S.L. (Ed.), Advances in Food and Nutrition Research, vol. 58, pp. 57-136.
64. Kosseva, M.R., 2011. Management and processing of food wastes. In: Reference Module in Earth Systems and Environmental Sciences Comprehensive Biotechnology, second ed., pp. 557-593.
65. Lee S.W., Kim S.B., Lee K.W., Choi C.S. Catalytic gasification of rice straw at low temperature. Environ. Eng. Res. 1999, 4:293-300.
66. Li H., Kim N.J., Jiang M., Kang J.W., Chang H.N. Simultaneous saccharification and fermentation of lignocellulosic residues pretreated with phosphoric acid-acetone for bioethanol production. Bioresour. Technol. 2009, 100(13):3245-3251.
67. Li L., Diederick R., Flora J.R., Berge N.D. Hydrothermal carbonization of food waste and associated packaging materials for energy source generation. Waste Manage. 2013, 33(11):2478-2492.
68. Libra J.A., Ro K.S., Kammann C., Funke A., Berge N.D., Neubauer Y., Titirici M.-M., Fühner C., Bens O., Kern J., Emmerich K.-H. Hydrothermal carbonization of biomass residuals: a comparative review of the chemistry, processes and applications of wet and dry pyrolysis. Biofuels 2011, 2:71-106.
69. Lin C.S.K., Pfaltzgraff L.A., Herrero-Davila L., Mubofu E.B., Abderrahim S., Clark J.H., Koutinas A.A., Kopsahelis N., Stamatelatou K., Dickson F., Thankappan S., Mohamed Z., Brocklesby R., Luque R. Food waste as a valuable resource for the production of chemicals, materials and fuels. Current situation and global perspective. Energy Environ. Sci. 2013, 6:426-464.
70. Linke B. Kinetic study of thermophilic anaerobic digestion of solid wastes from potato processing. Biomass Bioenergy 2006, 30(10):892-896.
71. Liu Z., Zhang F.-S., Wu J. Characterization and application of chars produced from pinewood pyrolysis and hydrothermal treatment. Fuel 2010, 89(2):510-514.
72. Liu Z., Quek A., Kent Hoekman S., Srinivasan M.P., Balasubramanian R. Thermogravimetric investigation of hydrochar-lignite co-combustion. Bioresour. Technol. 2012, 123:646-652.
73. Liu Z., Quek A., Kent Hoekman S., Balasubramanian R. Production of solid biochar fuel from waste biomass by hydrothermal carbonization. Fuel 2013, 103:943-949.
74. Lu X., Berge N.D. Influence of feedstock chemical composition on product formation and characteristics derived from the hydrothermal carbonization of mixed feedstocks. Bioresour. Technol. 2014, 166:120-131.
75. Lu X., Jordan B., Berge N.D. Thermal conversion of municipal solid waste via hydrothermal carbonization: comparison of carbonization products to products from current waste management techniques. Waste Manage. 2012, 32(7):1353-1365.
76. Ma J., Duong T.H., Smits M., Verstraete W., Carballa M. Enhanced biomethanation of kitchen waste by different pre-treatments. Bioresour. Technol. 2011, 102(2):592-599.
77. Mardikar S.H., Niranjan K. Food processing and the environment. Environ. Manage. Health 1995, 6(3):23-26.
78. Marin J., Kennedy K.J., Eskicioglu C. Effect of microwave irradiation on anaerobic degradability of model kitchen waste. Waste Manage. 2010, 30:1772-1779.
79. Marwaha S.S., Arora J.K. Food Processing: Biotechnological Applications 2000, Asiatech Publishers, New Delhi.
80. Matsakas L., Kekos D., Loizidou M., Christakopoulos P. Utilization of household food waste for the production of ethanol at high dry material content. Biotechnol. Biofuels 2014, 7:4-13.
81. McKendry P. Energy production from biomass (Part 2): conversion technologies. Bioresour. Technol. 2002, 83:47-54.
82. Moon H.C., Song I.S., Kim J.C., Shirai Y., Lee D.H., Kim J.K., Chung S.O., Kim D.H., Oh K.K., Cho Y.S. Enzymatic hydrolysis of food waste and ethanol fermentation. Int. J. Energy Res. 2009, 33:164-172.
83. Morris J. Recycling versus incineration: an energy conservation analysis. J. Hazard. Mater. 1996, 47:277-293.
84. Murphy J.D., McKeogh E., Kiely G. Technical/economic/environmental analysis of biogas utilisation. Appl. Energy 2004, 77(4):407-427.
85. Nakamura Y., Sawada T. Ethanol production from artificial domestic household waste solubilized by steam explosion. Biotechnol. Bioprocess Eng. 2003, 8:205-209.
86. NEA Waste Statistics and Overall Recycling, 2012. <>. http://app2.nea.gov.sg/energy-waste/waste-management/waste-statistics-and-overall-recycling.
87. Neves L., Ribeiro R., Oliveira R., Alves M.M. Enhancement of methane production from barley waste. Biomass Bioenergy 2006, 30(6):599-603.
88. NRDC (National Resources Defense Council), 2012. Wasted: How America is losing up to 40 percent of its Food from Farm to Fork to Landfill.
89. Oberoi H.S., Vadlani P.V., Nanjundaswamy A., Bansal S., Singh S., Kaur S., Babbar N. Enhanced ethanol production from Kinnow mandarin (Citrus reticulata) waste via a statistically optimized simultaneous saccharification and fermentation process. Bioresour. Technol. 2011, 102(2):1593-1601.
90. Oberoi H.S., Vadlani P.V., Saida L., Bansal S., Hughes J.D. Ethanol production from banana peels using statistically optimized simultaneous saccharification and fermentation process. Waste Manage. 2011, 31(7):1576-1584.
91. Oelofse S.H.H., Nahman A. Estimating the magnitude of food waste generated in South Africa. Waste Manage. Res. 2013, 31(1):80-86.
92. Pala M., Kantarli I.C., Buyukisik H.B., Yanik J. Hydrothermal carbonization and torrefaction of grape pomace: a comparative evaluation. Bioresour. Technol. 2014, 161:255-262.
93. Paraknowitsch J.P., Thomas A., Antonietti M. Carbon colloids prepared by hydrothermal carbonization as efficient fuel for indirect carbon fuel cells. Chem. Mater. 2009, 21:1170-1172.
94. Parawira W., Murto M., Zvauya R., Mattiasson B. Anaerobic batch digestion of solid potato waste alone and in combination with sugar beet leaves. Renew. Energy 2004, 29(11):1811-1823.
95. Parshetti G.K., Kent Hoekman S., Balasubramanian R. Chemical, structural and combustion characteristics of carbonaceous products obtained by hydrothermal carbonization of palm empty fruit bunches. Bioresour. Technol. 2013, 135:683-689.
96. Parshetti G.K., Liu Z., Jain A., Srinivasan M.P., Balasubramanian R. Hydrothermal carbonization of sewage sludge for energy production with coal. Fuel 2013, 111:201-210.
97. Parshetti G.K., Chowdhury S., Balasubramanian R. Hydrothermal conversion of urban food waste to chars for removal of textile dyes from contaminated waters. Bioresour. Technol. 2014, 161:310-319.
98. Pellera F.-M., Giannis A., Kalderis D., Anastasiadou K., Stegmann R., Wang J.-Y., Gidarakos E. Adsorption of Cu(II) ions from aqueous solutions on biochars prepared from agricultural by-products. J. Environ. Manage. 2012, 96:35-42.
99. Pfaltzgraff L.A., De Bruyn M., Cooper E.C., Budarin V., Clark J.H. Food waste biomass: a resource for high-value chemicals. Green Chem. 2013, 15:307-314.
100. Poerschmann J., Weiner B., Wedwitschka H., Baskyr I., Koehler R., Kopinke F.-D. Characterization of biocoals and dissolved organic matter phases obtained upon hydrothermal carbonization of brewer's spent grain. Bioresour. Technol. 2014, 164:162-169.
101. Pourbafrani M., Forgacs G., Horvath I.S., Niklasson C., Taherzadeh M.J. Production of biofuels, limonene and pectin from citrus wastes. Bioresour. Technol. 2010, 101(11):4246-4250.
102. Reisinger M., Tirpanalan Ö., Prückler M., Huber F., Kneifel W., Novalin S. Wheat bran biorefinery - a detailed investigation on hydrothermal and enzymatic treatment. Bioresour. Technol. 2013, 144:179-185.
103. Ren L.-H., Nie Y.-F., Liu J.-G., Jin Y.-Y., Sun L. Impact of hydrothermal process on the nutrient ingredients of restaurant garbabe. J. Environ. Sci. 2006, 18(5):1012-1019.
104. Rodríguez L.A., Toro M.E., Vazquez F., Correa-Daneri M.L., Gouiric S.C., Vallejo M.D. Bioethanol production from grape and sugar beet pomaces bysolid-state fermentation. Int. J. Hydrogen Energy 2010, 35(11):5914-5917.
105. Sawayama S., Inoue S., Minowa T., Tsukahara K., Ogi T. Thermochemical liquidization and anaerobic treatment of kitchen garbage. J. Ferment. Bioeng. 1997, 83(5):451-455.
106. Sevilla M., Fuertes A.B. The production of carbon materials by hydrothermal carbonization of cellulose. Carbon 2009, 47(9):2281-2289.
107. Singhai Y., Bansal S.K., Singh R. Evaluation of biogas production from solid waste using pretreatment method in anaerobic condition. Int. J. Emerg. Sci. 2012, 2(3):405-414.
108. Spokas K.A., Reicosky D.C. Impacts of sixteen different biochars on soil greenhouse gas production. Ann. Environ. Sci. 2009, 3:179-193.
109. Stillman G.I. Municipal solid waste (garbage): problems and benefits. Ann. N. Y. Acad. Sci. 1983, 403(1):1-26.
110. Sugano M., Yuze M., Komatsu A., Enomoto T., Kakuta Y., Hirano K. Extraction of valuable compounds from hydrothermally reacted rice bran and wheat bran. Waste Biomass Valorizat. 2012, 3(4):381-393.
111. Taherzadeh M.J., Karimi K. Pretreatment of lignocellulosic wastes to improve ethanol and biogas production: a review. Int. J. Mol. Sci. 2008, 9(9):1621-1651.
112. Tewari H.K., Marwaha S.S., Rupal K. Ethanol from banana peels. Agric. Wastes 1986, 16:135-146.
113. Tian Y., Kumabe K., Matsumoto K., Takeuchi H., Xie Y., Hasegawa T. Hydrolysis behavior of tofu waste in hot compressed waster. Biomass Bioenergy 2012, 39:112-119.
114. Titirici M.-M., Antonietti M. Chemistry and materials options of sustainable carbon materials made by hydrothermal carbonization. Chem. Soc. Rev. 2010, 39(1):103-116.
115. 2 problem?. New J. Chem. 2007, 31(6):787-789.
116. Uncu O.N., Cekmecelioglu D. Cost-effective approach to ethanol production and optimization by response surface methodology. Waste Manage. 2011, 31:636-643.
117. Vavouraki A.I., Angelis E.M., Kornaros M. Optimization of thermo-chemical hydrolysis of kitchen wastes. Waste Manage. 2013, 33(3):740-745.
118. WHO, 2007. Population, Health and Waste Management: Scientific Data and Policy Options. Report of a WHO Workshop, 29-30 March 2007, Rome, Italy.
119. Wiedner K., Rumpel C., Steiner C., Pozzi A., Maas R., Glaser B. Chemical evaluation of chars produced by thermochemical conversion (gasification, pyrolysis and hydrothermal carbonization) of agro-industrial biomass on a commercial scale. Biomass Bioenergy 2013, 59:264-278.
120. Wu S.-C., Tsou H.-K., Hsu H.-C., Hsu S.-K., Liou S.-P., Ho W.-F. A hydrothermal synthesis of eggshell and fruit waste extract to produce nanosized hydroxyapatite. Ceram. Int. 2013, 39:8183-8188.
121. Yaman S. Pyrolysis of biomass to produce fuels and chemical feedstocks. Energy Convers. Manage. 2004, 45(5):651-671.
122. Yan B.H., Selvam A., Wong J.W.C. Application of rumen microbes to enhance food waste hydrolysis in acidogenic leach-bed reactors. Bioresour. Technol. 2014, 168:64-71.
123. Young G. Municipal Solid Waste to Energy Conversion Processes: Economic, Technical and Renewable Comparisons 2010, J. Wiley & Sons Inc.
124. Zevenhoven-Onderwater M., Backman R., Skrifvars B.-J., Hupa M. The ash chemistry in fluidised bed gasification of biomass fuels. Part I: predicting the chemistry of melting ashes and ash-bed material interaction. Fuel 2001, 80:1489-1502.
125. Zhang R., El-Mashad H.M., Hartman K., Wang F., Liu G., Choate C., Gamble P. Characterization of food waste as feedstock for anaerobic digestion. Bioresour. Technol. 2007, 98(4):929-935.
126. Zhu B., Gikas P., Zhang R., Lord J., Jenkins B., Li X. Characteristics and biogas production potential of municipal solid wastes pretreated with a rotary drum reactor. Bioresour. Technol. 2009, 100(3):1122-1129.