Post-anaerobic digestion thermal hydrolysis of sewage sludge and food waste: Effect on methane yields, dewaterability and solids reduction

2018 ◽  
Vol 132 ◽  
pp. 158-166 ◽  
Author(s):  
Kine Svensson ◽  
Oda Kjørlaug ◽  
Matthew J. Higgins ◽  
Roar Linjordet ◽  
Svein J. Horn
2008 ◽  
Author(s):  
W. Qiao ◽  
W. Wang ◽  
R. Xun ◽  
Kazuyuki Tohji ◽  
Noriyoshi Tsuchiya ◽  
...  

Author(s):  
Kai Schumüller ◽  
Dirk Weichgrebe ◽  
Stephan Köster

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.


2010 ◽  
Vol 21 (1-3) ◽  
pp. 280-285 ◽  
Author(s):  
Ibrahim Gar Al-Alm Rashed ◽  
Joseph Akunna ◽  
Mohamed Mohamed El-Halwany ◽  
Ahmed Farag Fadil Abou Atiaa

Data in Brief ◽  
2021 ◽  
pp. 107323
Author(s):  
Mohamed N.A. Meshref ◽  
Seyed Mohammad Mirsoleimani Azizi ◽  
Wafa Dastyar ◽  
Rasha Maal-Bared ◽  
Bipro Ranjan Dhar

2017 ◽  
Vol 244 ◽  
pp. 996-1005 ◽  
Author(s):  
Dalal E. Algapani ◽  
Jing Wang ◽  
Wei Qiao ◽  
Min Su ◽  
Andrea Goglio ◽  
...  

2020 ◽  
Vol 254 ◽  
pp. 109830 ◽  
Author(s):  
Huijing Zou ◽  
Qin Jiang ◽  
Ruilin Zhu ◽  
Yongdong Chen ◽  
Tong Sun ◽  
...  

Archaea ◽  
2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Xue Yang ◽  
Xiang Liu ◽  
Si Chen ◽  
Guangmin Liu ◽  
Shuyan Wu ◽  
...  

Volatile fatty acids (VFAs) are preferred valuable resources, which can be produced from anaerobic digestion process. This study presents a novel technology using β-cyclodextrins (β-CD) pretreatment integrated alkaline method to enhance VFAs production from codigestion of food waste and sewage sludge. Experiment results showed that optimized ratio of food waste to sewage sludge was 3 : 2 because it provided adequate organic substance and seed microorganisms. Based on this optimized ratio, the integrated treatment of alkaline pH 10 and β-CD addition (0.2 g/g TS) performed the best enhancement on VFAs production, and the maximum VFAs production was 8631.7 mg/L which was 6.13, 1.38, and 1.57 times higher than that of control, initial pH 10, and 0.2 g β-CD/g TS treatment, respectively. Furthermore, the hydrolysis rate of protein and polysaccharides was greatly improved in integration treatment, which was 1.18–3.45 times higher than that of other tests. Though the VFAs production and hydrolysis of polymeric organics were highly enhanced, the primary bacterial communities with different treatments did not show substantial differences.


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