1 Mirza, U.K., Ahmad, N., Majeed, T., “An overview of biomass energy utilization in Pakistan”, Renew. Sustain. Energy Rev., 12 (7), 1988-1996 (2008). 2 Lastella, G., Testa, C., Cornacchia, G., Notornicola, M., Voltasio, F., Sharma, V.K., “Anaerobic digestion of semi-solid organic waste:Biogas production and its purification”, Energy Convers. Manage., 43, 63-75 (2002). 3 Liao, W., Liu, Y., Liu, C., Wen, Z., Chen, S., “Acid hydrolysis of fibers from dairy manure”, Biresour. Technol., 97, 1687-1695(2006). 4 Zicari, S.M., “Removal of H2S by using cow-manure compost”, M.S. Thesis, Cornell Univ., United State of America (2003). 5 Chou, S., Mike, F., Sam, K., Lisa, I., Lara, C., “Toxicological profile for H2S”, U.S. Public Health Services Agency for Toxic Substances and Disease Registry, Atlanta (2006). 6 Maat, H.T., Hogendoorn, J.A., Versteeg, G.F., “The removal of hydrogen sulfide from gas streams using an aqueous metal sulfate absorbent, Part I. The absorption of hydrogen sulfide in metal sulfate solutions”, Sep. Purif. Technol., 43, 183-197 (2005). 7 Strevett, K.A., Vieth, R.F., Grasso, D., “Chemo-autotrophic biogas purification for methane enrichment:Mechanism and kinetics”, Biochem. Eng. J., 58, 71-79 (1995). 8 Maat, H.T., Hogendoorn, J.A., Versteeg, G.F., “The removal of hydrogen sulfide from gas streams using an aqueous metal sulfate absorbent, Part II. The regeneration of copper sulfide to copper oxide-An experimental study”, Sep. Purif. Technol., 43, 199-213 (2005). 9 Truong, L.V.A., Abatzoglou, N., “A H2S reactive adsorption process for the purification of biogas prior to its use as bioenergy vector”, Biomass and Bioenergy, 29, 142-151 (2005). 10 Lusk, P., Methane Recovery from Animal Manures:The Current Opportunities Case Book, National Renewable Energy Laboratory, Washington DC (1998). 11 Horikawa, M.S., Rossi, F., Gimenes, M.L., Costa, C.M.M., da Silva, M.G.C., “Chemical absorption of H2S for biogas purification”, Brazilian J. Chem. Eng., 21 (3), 415-422 (2004). 12 Hagen, M., Polman, E., “Adding gas from biomass to the gas grid”, Contract No:XVII/4.1030/z/99-412, Final report submitted to Danish Gas Agency (2001). 13 Donald, L., Wise, C., Analysis of System for Purification of Fuel Gas. Fuel Gas Production from Biomass, Vol. 2, CRC Press, Boca Raton, Florida (1981). 14 Kapdi, S.S., Vijay, V.K., Rajesh, S.K., Parsad, R., “Biogas scrubbing, compression and storage:perspective and prospectus in Indian context”, Renewable Energy, 30 (8), 1195-1202 (2005). 15 Schomaker, A., “Anaerobic digestion of agro-industrial wastes:Information networks technical summary on gas treatment”, Report of Anaerobic Digestion Network (AD-NETT) Project FAIR-CT96-2083 (DG12-SSMI), Canada (2000). |