High-solids anaerobic co-digestion of sewage sludge and food waste in comparison with mono digestions: Stability and performance

2013 ◽  
Vol 33 (2) ◽  
pp. 308-316 ◽  
Author(s):  
Xiaohu Dai ◽  
Nina Duan ◽  
Bin Dong ◽  
Lingling Dai
Keyword(s):  
Sewage Sludge ◽  
Food Waste ◽  
High Solids ◽  
And Performance

Two-phase anaerobic co-digestion of food waste and sewage sludge

2014 ◽  
Vol 71 (1) ◽  
pp. 52-58 ◽  
Author(s):  
Feng Wang ◽  
Wei-Ying Li ◽  
Xue-Nong Yi
Keyword(s):  
Sewage Sludge ◽  
Food Waste ◽  
Removal Rate ◽  
Oxygen Demand ◽  
Future Research ◽  
Two Phase ◽  
Volatile Solids ◽  
Acidogenic Reactor ◽  
And Performance ◽  
Solids Mixing

The feasibility and performance of food waste and sewage sludge co-digestion were investigated to gain insight into their resource utilization. In this study, two-phase anaerobic digestion (TPAD) was operated under a total solids mixing ratio of 1:1 and different sludge retention times (SRTs). Results show that an acidogenic reactor with a 5-day SRT obtained the highest acidification efficiency, and its acetic acid content was dominant. The organic removal rate of a methanogenic reactor (MR) with a 20-day SRT and its corresponding TPAD system with a 25-day SRT were both the highest among the MRs and TPAD systems. Volatile solids and total chemical oxygen demand average removal efficiencies of the TPAD system with a 25-day SRT reached 64.7 and 60.8%, respectively. The MR with a 30-day SRT obtained the minimum ratio of volatile fatty acid to alkalinity (0.12). The methane content generated from the different MRs fluctuated at around 70%. All of the above results can provide reference for future research.

A Full-Scale Demonstration Food Waste and Sewage Sludge Co-Digestion Project at the Joint Water Pollution Control Plant

2015 ◽  
Vol 2015 (15) ◽  
pp. 3796-3806
Author(s):  
Robert Morton ◽  
James Ecker ◽  
Robert Hickey ◽  
Daniel Gary ◽  
Andy Lee ◽  
...  
Keyword(s):  
Water Pollution ◽  
Sewage Sludge ◽  
Food Waste ◽  
Pollution Control ◽  
Control Plant ◽  
Full Scale ◽  
Water Pollution Control

scholarly journals Biogas potential of organic waste onboard cruise ships — a yet untapped energy source

2021 ◽  
Author(s):  
Kai Schumüller ◽  
Dirk Weichgrebe ◽  
Stephan Köster
Keyword(s):  
Energy Source ◽  
Anaerobic Digestion ◽  
Sewage Sludge ◽  
Food Waste ◽  
Energy Demand ◽  
Organic Waste ◽  
Biogas Production ◽  
Biogas Yield ◽  
Cruise Ships ◽  
Detailed Presentation

AbstractTo tap the organic waste generated onboard cruise ships is a very promising approach to reduce their adverse impact on the maritime environment. Biogas produced by means of onboard anaerobic digestion offers a complementary energy source for ships’ operation. This report comprises a detailed presentation of the results gained from comprehensive investigations on the gas yield from onboard substrates such as food waste, sewage sludge and screening solids. Each person onboard generates a total average of about 9 kg of organic waste per day. The performed analyses of substrates and anaerobic digestion tests revealed an accumulated methane yield of around 159 L per person per day. The anaerobic co-digestion of sewage sludge and food waste (50:50 VS) emerged as particularly effective and led to an increased biogas yield by 24%, compared to the mono-fermentation. In the best case, onboard biogas production can provide an energetic output of 82 W/P, on average covering 3.3 to 4.1% of the total energy demand of a cruise ship.

Biogas Residue Biochar Enhances Thermophilic Anaerobic Co-Digestion of Sewage Sludge and Food Waste

2021 ◽  
Author(s):  
Hongbo Liu ◽  
Xinkang Wang ◽  
Yueying Fang ◽  
Wenjia Lai ◽  
Suyun Xu ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Food Waste ◽  
Biogas Residue
Sign in / Sign up

Export Citation Format

Share Document