Page 79 - 067
P. 79
65
Weiland, P. 2010. Biogas production: current state and perspectives. Applied
Microbiology and Biotechnology. 85 (4), 849-860.
Willquist, K., Nkemka, V. N., Svensson, H., Pawar, S., Ljunggren, M., Karlsson, H., and
Liden, G. 2012. Design of a novel biohythane process with high H and CH
2
4
production rates. International Journal of Hydrogen Energy. 37 (23), 17749-
17762.
Yacob. S., Ali Hassan, M., Shirai, Y., Wakisaka, M. and Subash, S. 2006. Baseline study
of methane emission from anaerobic ponds of palm oil mill effluent
treatment. Sci total Environ. 366, 96-187.
Yen, HW. and Brune, DE. 2007. Anaerobic co-digestion of algal sludge and waste
paper to produce methane. Bioresource Technology. 98 (1), 130-134.
Yin, C.Y., Kadir, S.A.S.A, Lim, Y.P., Syed-Ariffin, S.N. and Zamzuri, Z. 2008. An
investigation into physicochemical characteristics of ash produced from
combustion of oil palm biomass waste in a boiler. Fuel Processing
Technology. 89, 693-696.
Zhang, Y., Yan, L., Chi, L., Long, X., Mei, Z. and Zhang, Z. 2008. Startup and operation
of anaerobic EGSB reactor treating palm oil mill effluent. Journal of
Environmental Sciences. 20, 658–663.
Zhong, w., Zhang, Z., Luo, Y., Qiao, W., Xiao, M. and Zhang, M. 2012. Biogas
productivity by co-digesting Taihu blue algae with corn straw as an external
carbon source. Bioresource Technology. 114, 281–286.
Zinatizadeh, A., Mohamed, A., Mashitah, M., Abdullah, A. and Isa, M. 2007.
Optimization of pre-treated palm oil mill effluent digestion in an up-flow
anaerobic sludge fixed film bioreactor: a comparative study. Biochemical
Engineering Journal. 35 (2), 226-237.