Fate of mercury and methylmercury in full-scale sludge anaerobic digestion combined with thermal hydrolysis

2020 ◽  
pp. 124310
Author(s):  
Jibao Liu ◽  
Xianglin He ◽  
Yufeng Xu ◽  
Zhuang Zuo ◽  
Pei Lei ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Full Scale ◽  
Thermal Hydrolysis

scholarly journals Effects of post anaerobic digestion thermal hydrolysis on dewaterability and moisture distribution in digestates

2019 ◽  
Vol 80 (7) ◽  
pp. 1338-1346 ◽  
Author(s):  
Oda K. Svennevik ◽  
Odd Egil Solheim ◽  
Greeley Beck ◽  
Geir H. Sørland ◽  
Kjell R. Jonassen ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Raw Materials ◽  
Free Water ◽  
Full Scale ◽  
Moisture Distribution ◽  
Thermal Hydrolysis ◽  
Water Fraction ◽  
Solids Concentration ◽  
Hydrolysis Process ◽  
The Impact

Abstract Organic waste fractions such as sewage sludge, food waste and manure can be stabilized by anaerobic digestion (AD) to produce renewable energy in the form of biogas. Following AD, the digested solid fraction (digestate) is usually dewatered to reduce the volume before transportation. Post-AD treatments such as the Post-AD thermal hydrolysis process (Post-AD THP) have been developed to improve the dewatering, but the mode of action is not well understood. In this study, samples from 32 commercial full-scale plants were used to assess the impact of Post-AD THP on a broad range of raw materials. Maximum dewatered cake solids after Post-AD THP was predicted by thermogravimetric analysis (TGA). Post-AD THP changed the moisture distribution of the samples by increasing the free water fraction. A consistent improvement in predicted dewatered cake solids was achieved across the 32 samples tested, on average increasing the dry solids concentration by 87%. A full-scale trial showed that dewatering Post-AD THP digestate at 80 °C improved dewatered cake solids above the predictions by TGA at 35 °C. In conclusion, dewatered cake solids were significantly improved by Post-AD THP, reducing the volume of dewatered cake for disposal.

Full scale study of Class A biosolids produced by thermal hydrolysis pretreatment and anaerobic digestion

2018 ◽  
Vol 78 ◽  
pp. 43-50 ◽  
Author(s):  
Xuanzhao Wang ◽  
Natasha Andrade ◽  
Jessica Shekarchi ◽  
Sarah J. Fischer ◽  
Alba Torrents ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Full Scale ◽  
Thermal Hydrolysis ◽  
Class A ◽  
Class A Biosolids

Centralized Biosolids Processing with Thermal Hydrolysis and Anaerobic Digestion

2018 ◽  
Vol 2018 (4) ◽  
pp. 366-377
Author(s):  
Chris Moline ◽  
Matthew Higgins ◽  
Kevin Selock ◽  
Dale Belschner ◽  
Lawrence Hentz ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Thermal Hydrolysis

Thermal Hydrolysis Full Scale System Performance

2018 ◽  
Vol 2018 (4) ◽  
pp. 321-328
Author(s):  
Todd O Williams ◽  
Peter Burrowes ◽  
Marialena Hatzigeorgiou
Keyword(s):  
System Performance ◽  
Full Scale ◽  
Thermal Hydrolysis

Underestimated humic acids release and influence on anaerobic digestion during sludge thermal hydrolysis

2021 ◽  
pp. 117310
Author(s):  
Fang Huang ◽  
Hongbo Liu ◽  
Jiaxin Wen ◽  
Cheng Zhao ◽  
Lu Dong ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Humic Acids ◽  
Thermal Hydrolysis
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