Development of high efficiency biogas production system on persistent organic waste by photo catalytic treatment.

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This research is aimed at development of high efficiency biogas production system on persistent organic waste by photocatalytic treatment.The activated sludge as the model persistent organic waste was treated under the optimum photocatalatic conditions, very outstanding decomposition rate which more than 50% was obtained in 8 hours. Furthermore, as a result of performing hydrogen fermentation by using the processed activated sludge as fermentation materials, compared with the case which does not carry out photocatalytic treatment, it became clear that the rate of output of hydrogen increased 17 times.Combining the treatment of persistent organic waste by photocatalytic technology and bioremediation, a synergistic effect on development of high efficiency and low environmental load bioenergy production system could be feasible and demonstrating a large social impact.