Journal
BIORESOURCE TECHNOLOGY
Volume 341, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2021.125899
Keywords
Phosphorus recovery; Sewage sludge; Anaerobic-based process; Acid fermentation; Sulfate reduction
Funding
- National Natural Science Foundation of China [51778352]
- S&T Program of Hebei [19273603D]
Ask authors/readers for more resources
Anaerobic-based processes are green and sustainable technologies for phosphorus recovery from sewage sludges. Different phosphorus species can be released via different anaerobic-based processes, with extracellular polymeric substances and excessive metal ions being the main limiting factors. Acid fermentation and anaerobic fermentation with sulfate reduction show promise in enhancing phosphorus release efficiency.
Anaerobic-based processes are green and sustainable technologies for phosphorus (P) recovery from sewage sludges economically and are promising in practical application. However, the P release efficiency is always not satisfied. In this paper, the P release mechanisms (regarding to different P species) from sewage sludge using anaerobic-based processes are systematically summarized. The obstacles of P release and the updated achievements of enhancing P release from sewage sludges are analyzed and discussed. It can be concluded that different P species can release from sewage sludge via different anaerobic-based processes. Extracellular polymeric substances and excessive metal ions are the two main limiting factors to P release. Acid fermentation and anaerobic fermentation with sulfate reduction could be two promising ways, with P release efficiencies of up to 64% and 63%. Based on the summarization and discussion, perspectives on practical application of P recovery from sewage sludge using anaerobic-based processes are proposed.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available