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| An integrated biomass production and conversion process is proposed wherein water floating plant grows in greenhouse and digested to biogas, biogas is used for power generation, undigested residue is used as fertilizer for biomass production as well as CO2. Modeling the processes with water hyacinth in tropic area demonstrates several major advantages of the integrated process. (1) The land area needed to grow the biomass to replace fossil fuel for present world power generation is only about 600000 km2, 0.4% land area of the world. (2) A close cycle of nutrient solves the fertilizer supply for biomass production and waste treatment for biomass conversion. (3) Nearly no pollution and greenhouse gas emit out to harm environment and global climate, and about 40% greenhouse gas will be reduced using the processes to replace all fossil fuel for power generation. (4) The proposed process can be applied in agriculturally marginal land. |
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| Keywords:bioenergy, water hyacinth, anaerobic digestion, power, integrated process |
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