Anaerobic digestion and nutrient recovery

2022 ◽  
pp. 239-281
Author(s):  
Edgar Martín-Hernández ◽  
Mariano Martín
Keyword(s):  
Anaerobic Digestion ◽  
Nutrient Recovery

scholarly journals Anaerobic digestion of lipid-extracted Auxenochlorella protothecoides biomass for methane generation and nutrient recovery

2015 ◽  
Vol 183 ◽  
pp. 229-239 ◽  
Author(s):  
Pavlo Bohutskyi ◽  
Ben Ketter ◽  
Steven Chow ◽  
Kameron J. Adams ◽  
Michael J. Betenbaugh ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Nutrient Recovery ◽  
Methane Generation ◽  
Auxenochlorella Protothecoides

Anaerobic digestion of lipid-extracted microalgae: Enhancing nutrient recovery towards a closed loop recycling

2017 ◽  
Vol 121 ◽  
pp. 139-146 ◽  
Author(s):  
Eleonora Sforza ◽  
Elena Barbera ◽  
Francesca Girotto ◽  
Raffaello Cossu ◽  
Alberto Bertucco
Keyword(s):  
Anaerobic Digestion ◽  
Closed Loop ◽  
Nutrient Recovery

scholarly journals Nutrient recovery technologies for anaerobic digestion systems: An overview

2016 ◽  
Vol 29 (1) ◽  
pp. 7-26 ◽  
Author(s):  
Maycoll Stiven Romero Güiza ◽  
◽  
Joan Mata Alvarez ◽  
Josep María Chimenos Rivera ◽  
Sergi Astals Garcia ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Nutrient Recovery

scholarly journals An integrated approach to energy production and nutrient recovery through anaerobic digestion of Vetiveria zizanoides

2015 ◽  
Vol 81 ◽  
pp. 288-293 ◽  
Author(s):  
Angelo Crocamo ◽  
Santino Di Bernardino ◽  
Raffaele Di Giovanni ◽  
Massimiliano Fabbricino ◽  
Susete Martins-Dias
Keyword(s):  
Anaerobic Digestion ◽  
Energy Production ◽  
Integrated Approach ◽  
Nutrient Recovery

scholarly journals Effectiveness of struvite precipitation and ammonia stripping for recovery of phosphorus and nitrogen from anaerobic digestate: a systematic review

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Dag Lorick ◽  
Biljana Macura ◽  
Marcus Ahlström ◽  
Anders Grimvall ◽  
Robin Harder
Keyword(s):  
Anaerobic Digestion ◽  
Grey Literature ◽  
Evidence Base ◽  
Bibliographic Databases ◽  
Nutrient Recovery ◽  
Nitrogen And Phosphorus ◽  
Ammonia Stripping ◽  
Anaerobic Digestate ◽  
Struvite Precipitation ◽  
The Impact

Abstract Background A regular supply of nutrients such as nitrogen and phosphorus to agriculture is needed for global food security, and increased recycling of nutrients back to agriculture from organic waste streams is necessary for increased rural–urban sustainability. Anaerobic digestion of sewage sludge and agricultural wastes is widely applied to stabilize the substrate and capture some of its energetic value via biogas production. Anaerobic digestate is a concentrated source of nutrients to which nutrient recovery technologies can be applied. By combining anaerobic digestion and nutrient recovery technologies on the digestate, both energy and nutrient recovery can be achieved. Two promising technologies that could increase nutrient recycling from different types of wastewater are struvite precipitation and ammonia stripping. This review examined the effectiveness of these ecotechnologies for the recovery of nitrogen and phosphorus from anaerobic digestate with the aim of reducing the impact of waste on the environment. Methods We searched for academic and grey literature published after 2013. Searches were performed in 5 bibliographic databases in English, in the search engine Google Scholar in English, Swedish, Finnish and Polish, and across a range of organisational websites in English, Swedish, Finnish and Polish. Eligibility screening was conducted at two levels: ‘title and abstract’ and ‘full text’. Included eligible studies were subject to a critical appraisal that assessed external and internal study validity. We extracted information on study characteristics, intervention, comparators, effect modifiers, and measured outcomes. Data synthesis included narrative synthesis of each study of sufficient validity. We performed quantitative synthesis on a subset of studies. Review findings The review included 30 studies on struvite precipitation and 8 studies on ammonia stripping. Both pH and Mg:PO4 ratio were found to have a clear influence on the effectiveness of struvite precipitation process (and thus nutrient removal rates). The response to pH was found to be non-linear, resembling a bell curve with a maximum around pH 9.5. Mg:PO4 ratio was found to have a positive effect on removal up to a ratio as high as 4:1. However, it should be noted that high removal efficiencies were sometimes achieved at a ratio as low as 1:1 as well. Although the effects of pH and Mg:PO4 ratio were clear, the model developed could not accurately predict removal based on these two parameters alone. Studies on ammonia stripping were relatively heterogeneous. Due to the small size of the evidence base, and the heterogeneity between studies, no conclusions are presented regarding the influence of different process parameters on the outcome of ammonia stripping. Conclusions In conclusion, when performed under the right conditions (i.e. pH around 9.5 and Mg:PO4 ratio of at least 1:1), available evidence suggests that struvite precipitation is an effective technology for the recovery of nutrients from the liquid phase of anaerobic digestate. The evidence base is limited for ammonia stripping. We provided suggestions of which data to report in future studies.

Energy and Nutrient Recovery from Sewage Sludge and Manure via Anaerobic Digestion with Hydrothermal Pretreatment

2019 ◽  
Vol 54 (2) ◽  
pp. 1147-1156 ◽  
Author(s):  
Ci Fang ◽  
Rixiang Huang ◽  
Christy M. Dykstra ◽  
Rongfeng Jiang ◽  
Spyros G. Pavlostathis ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Sewage Sludge ◽  
Hydrothermal Pretreatment ◽  
Nutrient Recovery
Sign in / Sign up

Export Citation Format

Share Document