NOVELTY - A foodstuffs type waste material (F) is made into a slurry (S) and the slurry is decomposed into biogas (G) and a fermented liquor (M), by using a bioreactor (5). A wood-type waste material (W) is crushed and mixed with fermented liquor. The mixture is decomposed under gas-passage and a compost material is obtained. The biogas obtained is used for supplying energy for decomposition, mixing and gas passage.    USE - The method and apparatus are useful for recovering energy and for producing compost material used as resources.    ADVANTAGE - The foodstuffs type waste material is decomposed into biogas and the fermented liquor and biogas obtained is used for supplying energy for decomposition, mixing and gas passage. Therefore energy supplied from outside of the recycling apparatus is reduced. Usage of the fossil fuel for recycling is also reduced. The foodstuffs type waste material and wood-type waste material are recycled effectively as valuable resources. Since the mixture of fermented liquor and wood-type waste material are maintained at suitable temperature for decomposition by the energy of biogas, the quality of the compost material obtained is maintained stably and fermentation period of the compost material is reduced. The energy of the biogas is efficiently recovered by fuel cell and generation of carbon dioxide is reduced. The exhaust heat of the fuel cell is effectively used for decomposition and energy efficiency of the fuel cell is increased.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a mixed recycling apparatus of foodstuffs type waste material and wood-type waste material which has a grinding unit (1) for grinding foodstuffs type waste material and making into slurry, a bioreactor for decomposing slurry into biogas and fermented liquor, crushing unit (23) for crushing wood-type waste material, a compost apparatus (25), and energy collection equipment (10) for recovering energy from biogas. The compost apparatus mixes crushed wood-type waste material and fermented liquor and obtains compost material.    DESCRIPTION OF DRAWING(S) - The figure shows the diagrammatic flow chart of the mixed recycling apparatus. (Drawing includes non-English language text).    Grinding unit (1)    Heat retention unit (6)    Energy collection equipment (10)    Heating unit (12)    Water-removal device (17)    Crushing unit (23)    Compost apparatus (25)    Foodstuffs type waste material (F)    Biogas (G)    Fermented liquor (M)    Slurry (S)    Wood-type waste material (W)