Methane fermentation of poultry slaughterhouse waste

Anaerobic Digestion of Slaughterhouse Waste

Fermentation of Aerobically Slaughterhouse Sludge for Purposes

Aerobically activated sludge from a pig slaughterhouse wastewater-treatment plant was mixed with 0.35 or 0.5% (wtlwt) dextrose, with 0.5% (wtlwt) dextrose and 0.05 or 0.2% (vlv) f ormic acid, or with 2.5% (wtlwt) molasses and 0.1% (v/v) formic acid, and was pasteurized at 95°C for 5 min. After cooling to approximately 20°C the sludge was inoculated with l@-lo7 cfu Lactobacillus plantarum/g slud...

Development of a novel three-stage fermentation system converting food waste to hydrogen and methane.

In this study, a novel three-stage (lactate-+photo-H(2)+CH(4)) fermentation system was developed, which converts food waste to H(2) and CH(4), with an emphasis on achieving high H(2) yield. The system begins by first fermenting food waste to lactate, rather than acetate and butyrate, using indigenous lactic acid bacteria. Lactate fermentation effluent was then centrifuged, and the supernatant w...

On-Line Measurement of Dissolved Methane Concentration During Methane Fermentation in a Loop Bioreactor

A dissolved methane sensor based on silicone tube was designed, constructed and optimized.The silicone tube diameter, silicone tube length and helium flow rate (as the carrier gas(were considered as process parameters to be optimized.A continuous stream of helium (50 mL/min) was directed through the tubing, sweeping out the...

Methane production from low solid concentration liquid swine waste using conventional anaerobic fermentation

A study was conducted to determine the methane production characteristics of low concentration liquid swine waste using conventional dispersed growth anaerobic fermentation at 35°C. Raw waste was obtained from a conventional under ̄oor ̄ushing system and screened using an 18 mesh vibrating liquid±solid separator. The volatile solid (VS) concentration of the in ̄uent waste used in the study was 1...