Methane Fermentation of Diluted Food Waste by Self-Agitated Anaerobic Baffled Reactor with Fixed Carrier

Kanechika MATSUI, Hiroshi OSHIBE, Wei-Kang QI, Yu-You LI
2018 Journal of Japan Society on Water Environment  
The operation performance of an improved self-agitated anaerobic baffled reactor with a fixed carrier was investigated by a continuous experiment of treating simulated food waste adjusted to a 5% total solid (TS) concentration. The objective of this study was to enhance methane fermentation and effluent water quality at 35 ℃. The effect of chemical oxygen demand measured by potassium dichromate (COD Cr ) loading rate on the treatment performance was evaluated by shortening the HRT from 50 days
more » ... e HRT from 50 days to 10 days. As a result, the improved reactor was stably operated until the COD Cr loading rate increased to 9.56 kg m -3 d -1 . In addition, the improved reactor showed better organic removal efficiency and conversion ratio from the substrate than these the CSTR and self-agitated anaerobic baffled reactor without a fixed carrier.
doi:10.2965/jswe.41.205 fatcat:347zyne2rvfwvdal524rstqfle