Kaparaju P, Serrano M, Thomsen AB et al (2009) Bioethanol, biohydrogen and biogas production
from wheat straw in a biorefinery concept. Bioresour Technol 100:2562–2568. https://doi.org/
10.1016/j.biortech.2008.11.011
Keanoi N, Hussaro K, Teekasap S (2014) The effect of natural water with cow dung and agricultural
waste ratio on biogas production from anaerobic co-digestion. Am J Environ Sci 9:529–536.
https://doi.org/10.3844/ajessp.2013.529.536
Li Y, Park SY, Zhu J (2011) Solid-state anaerobic digestion for methane production from organic
waste. Renew Sust Energ Rev 15:821–826. https://doi.org/10.1016/j.rser.2010.07.042
Li J, Wei L, Duan Q et al (2014) Semi-continuous anaerobic co-digestion of dairy manure with
three crop residues for biogas production. Bioresour Technol 156:307–313. https://doi.org/10.
1016/j.biortech.2014.01.064
Liew LN, Shi J, Li Y (2011) Enhancing the solid-state anaerobic digestion of fallen leaves through
simultaneous alkaline treatment. Bioresour Technol 102:8828–8834. https://doi.org/10.1016/j.
biortech.2011.07.005
Liu G, Zhang R, El-Mashad HM, Dong R (2009) Effect of feed to inoculum ratios on biogas yields
of food and green wastes. Bioresour Technol 100:5103–5108. https://doi.org/10.1016/j.
biortech.2009.03.081
Llore CE, Lo M, López Torres M, Espinosa Lloréns MDC (2008) Effect of alkaline pretreatment on
anaerobic digestion of solid wastes. Waste Manag 28:2229. https://doi.org/10.1016/j.wasman.
2007.10.006
Mackuľak T, Prousek J, Švorc Ľ, Drtil M (2012) Increase of biogas production from pretreated hay
and leaves using wood-rotting fungi. Chem Pap 66:649–653. https://doi.org/10.2478/s11696012-0171-1
Mittal S, Ahlgren EO, Shukla PR (2018) Barriers to biogas dissemination in India: a review. Energy
Policy 112:361–370. https://doi.org/10.1016/j.enpol.2017.10.027
Monlau F, Barakat A, Steyer JP, Carrere H (2012) Comparison of seven types of thermo-chemical
pretreatments on the structural features and anaerobic digestion of sunflower stalks. Bioresour
Technol 120:241–247. https://doi.org/10.1016/j.biortech.2012.06.040
Mussgnug JH, Klassen V, Schlüter A, Kruse O (2010) Microalgae as substrates for fermentative
biogas production in a combined biorefinery concept. J Biotechnol 150:51–56. https://doi.org/
10.1016/j.jbiotec.2010.07.030
Mustafa AM, Poulsen TG, Xia Y, Sheng K (2017) Combinations of fungal and milling
pretreatments for enhancing rice straw biogas production during solid-state anaerobic digestion.
Bioresour Technol 224:174–182. https://doi.org/10.1016/j.biortech.2016.11.028
Nasir IM, Ghazi TIM, Omar R (2012) Production of biogas from solid organic wastes through
anaerobic digestion: a review. Appl Microbiol Biotechnol 95:321–329
Nieves DC, Karimi K, Horváth IS (2011) Improvement of biogas production from oil palm empty
fruit bunches (OPEFB). Ind Crop Prod 34:1097–1101. https://doi.org/10.1016/j.indcrop.2011.
03.022
Otero-González L, Field JA, Sierra-Alvarez R (2014) Fate and long-term inhibitory impact of ZnO
nanoparticles during high-rate anaerobic wastewater treatment. J Environ Manag 135:110–117.
https://doi.org/10.1016/j.jenvman.2014.01.025
Preeti Rao P, Seenayya G (1994) Improvement of methanogenesis from cow dung and poultry litter
waste digesters by addition of iron. World J Microbiol Biotechnol 10:211–214. https://doi.org/
10.1007/BF00360890
Recebli Z, Selimli S, Ozkaymak M, Gonc O (2015) Biogas production from animal manure. J Eng
Sci Technol 10:722–729. https://doi.org/10.1016/j.proeps.2015.08.144
Ryan F, Caulfield B (2010) Examining the benefits of using bio-CNG in urban bus operations.
Transp Res Part D Transp Environ 15:362–365. https://doi.org/10.1016/j.trd.2010.04.002
Sai Ram M, Singh L, Alam SI (1993) Effect of sulfate and nitrate on anaerobic degradation of night
soil. Bioresour Technol 45:229–232. https://doi.org/10.1016/0960-8524(93)90116-S
Sambusiti C, Ficara E, Rollini M et al (2012) Sodium hydroxide pretreatment of ensiled sorghum
forage and wheat straw to increase methane production. Water Sci Technol 66:2447–2452.
https://doi.org/10.2166/wst.2012.480
138
S. M. Bhatt and S. Bhat
from wheat straw in a biorefinery concept. Bioresour Technol 100:2562–2568. https://doi.org/
10.1016/j.biortech.2008.11.011
Keanoi N, Hussaro K, Teekasap S (2014) The effect of natural water with cow dung and agricultural
waste ratio on biogas production from anaerobic co-digestion. Am J Environ Sci 9:529–536.
https://doi.org/10.3844/ajessp.2013.529.536
Li Y, Park SY, Zhu J (2011) Solid-state anaerobic digestion for methane production from organic
waste. Renew Sust Energ Rev 15:821–826. https://doi.org/10.1016/j.rser.2010.07.042
Li J, Wei L, Duan Q et al (2014) Semi-continuous anaerobic co-digestion of dairy manure with
three crop residues for biogas production. Bioresour Technol 156:307–313. https://doi.org/10.
1016/j.biortech.2014.01.064
Liew LN, Shi J, Li Y (2011) Enhancing the solid-state anaerobic digestion of fallen leaves through
simultaneous alkaline treatment. Bioresour Technol 102:8828–8834. https://doi.org/10.1016/j.
biortech.2011.07.005
Liu G, Zhang R, El-Mashad HM, Dong R (2009) Effect of feed to inoculum ratios on biogas yields
of food and green wastes. Bioresour Technol 100:5103–5108. https://doi.org/10.1016/j.
biortech.2009.03.081
Llore CE, Lo M, López Torres M, Espinosa Lloréns MDC (2008) Effect of alkaline pretreatment on
anaerobic digestion of solid wastes. Waste Manag 28:2229. https://doi.org/10.1016/j.wasman.
2007.10.006
Mackuľak T, Prousek J, Švorc Ľ, Drtil M (2012) Increase of biogas production from pretreated hay
and leaves using wood-rotting fungi. Chem Pap 66:649–653. https://doi.org/10.2478/s11696012-0171-1
Mittal S, Ahlgren EO, Shukla PR (2018) Barriers to biogas dissemination in India: a review. Energy
Policy 112:361–370. https://doi.org/10.1016/j.enpol.2017.10.027
Monlau F, Barakat A, Steyer JP, Carrere H (2012) Comparison of seven types of thermo-chemical
pretreatments on the structural features and anaerobic digestion of sunflower stalks. Bioresour
Technol 120:241–247. https://doi.org/10.1016/j.biortech.2012.06.040
Mussgnug JH, Klassen V, Schlüter A, Kruse O (2010) Microalgae as substrates for fermentative
biogas production in a combined biorefinery concept. J Biotechnol 150:51–56. https://doi.org/
10.1016/j.jbiotec.2010.07.030
Mustafa AM, Poulsen TG, Xia Y, Sheng K (2017) Combinations of fungal and milling
pretreatments for enhancing rice straw biogas production during solid-state anaerobic digestion.
Bioresour Technol 224:174–182. https://doi.org/10.1016/j.biortech.2016.11.028
Nasir IM, Ghazi TIM, Omar R (2012) Production of biogas from solid organic wastes through
anaerobic digestion: a review. Appl Microbiol Biotechnol 95:321–329
Nieves DC, Karimi K, Horváth IS (2011) Improvement of biogas production from oil palm empty
fruit bunches (OPEFB). Ind Crop Prod 34:1097–1101. https://doi.org/10.1016/j.indcrop.2011.
03.022
Otero-González L, Field JA, Sierra-Alvarez R (2014) Fate and long-term inhibitory impact of ZnO
nanoparticles during high-rate anaerobic wastewater treatment. J Environ Manag 135:110–117.
https://doi.org/10.1016/j.jenvman.2014.01.025
Preeti Rao P, Seenayya G (1994) Improvement of methanogenesis from cow dung and poultry litter
waste digesters by addition of iron. World J Microbiol Biotechnol 10:211–214. https://doi.org/
10.1007/BF00360890
Recebli Z, Selimli S, Ozkaymak M, Gonc O (2015) Biogas production from animal manure. J Eng
Sci Technol 10:722–729. https://doi.org/10.1016/j.proeps.2015.08.144
Ryan F, Caulfield B (2010) Examining the benefits of using bio-CNG in urban bus operations.
Transp Res Part D Transp Environ 15:362–365. https://doi.org/10.1016/j.trd.2010.04.002
Sai Ram M, Singh L, Alam SI (1993) Effect of sulfate and nitrate on anaerobic degradation of night
soil. Bioresour Technol 45:229–232. https://doi.org/10.1016/0960-8524(93)90116-S
Sambusiti C, Ficara E, Rollini M et al (2012) Sodium hydroxide pretreatment of ensiled sorghum
forage and wheat straw to increase methane production. Water Sci Technol 66:2447–2452.
https://doi.org/10.2166/wst.2012.480
138
S. M. Bhatt and S. Bhat