Energy and food as well as environmental pollution are the major serious problems the world faces today.
Biogas(methane) is considered as a promising substitute for fossil fuel, while single cell protein is promising as an alternative protein source.
In this study, integrated biomass system constructed with methane fermentation, photosynthetic bacterial and algal cultures for production of methane and single cell protein was investigated.
In the semi-continuous methane fermentation fed by swine manure, the rate of methane production was 420(ml/l culture/day) and reduction rate of filtrate chemical oxygen demand reached 42.8 %.
In the semi-continuous culture of $\underline{Rhodopseudomonas} \underline{capsulata}$ fed by methane fermentation effluent, the rate of single cell protein production was 2.86(g/l culture/day) and reduction rate of filtrate chemical oxygen demand reached 46.2 %.
In the semi-continuous culture of $\underline{chlorella}$ sp. fed by photosynthetic bacterial culture effluent, the rate of single cell protein production was 0.58 (g/l culture/day) and reduction rate of filtrate chemical oxygen demand reached 51%.
As a result, in there stage cultivation, raw material was clarified from 9.800 (mg/l) of filtrate chemical oxygen demand to 68(mg/l) of filtrate chemical oxygen demand to 68(mg/l) of filtrate chemical oxygen demand.
