Real-time optimization of the key filtration parameters in an AnMBR: Urban wastewater mono-digestion vs. co-digestion with domestic food waste

Co-digestion of source segregated domestic food waste to improve process stability.

Cattle slurry and card packaging were used to improve the operational stability of food waste digestion, with the aim of reducing digestate total ammoniacal nitrogen concentrations compared to food waste only. Use of cattle slurry could have major environmental benefits through reducing greenhouse gas emissions associated with current management practices; whilst card packaging is closely linke...

Faeces and food waste co-digestion for development of decentralised urban resource recovery in Singapore

As the core technology of decentralised urban resource recovery system, the objective of this study was to evaluate the feasibility of anaerobic co-digestion of faeces (brown-water, BW) and foodwaste (FW). Batch assay indicated that anaerobic co-digestion (BW+FW) showed higher methane yield (0.540.59 LCH4/gVSadded) than BW and FW alone. Anaerobic co-digestion was subsequently performed in a me...

Pilot-scale anaerobic co-digestion of municipal wastewater sludge with restaurant grease trap waste.

The maximum feasible loading rate of grease trap waste (GTW) to the municipal wastewater sludge (MWS) was investigated using two 1300 L pilot-scale (1200 L active volume) digesters under mesophilic conditions at a 20 day solids retention time. During the co-digestion, the test reactor received a mixture of GTW and MWS while the control reactor received only MWS. The test digester loading was in...

Food Waste Disposal Using Anaerobic Digestion

Kinetics of carbon dioxide, methane and hydrolysis in co-digestion of food and vegetable wastes

Kinetic models which can express the behaviors of hydrolysis and biogas generation more precisely than the conventional models were developed. The developed models were evaluated based on the experimental data of six batch reactors. Anaerobic digestion test was co-digestion of food and vegetable waste with inoculating horse dung by 15% of the total wet weight, at the temperature of 37o</su...