Technologies to recover nitrogen from livestock manure - A review

Pandey, B. K.; Chen, Lide

doi:10.1016/j.scitotenv.2021.147098

Cited by 66 publications

(43 citation statements)

References 145 publications

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“…The concept of integrating nutrient-recovery facilities with AD plants has been widely studied at the lab-or pilot-scale and reported as a promising strategy to contribute to the green transition towards the circular bioeconomy. However, the profitability and sustainability of the full-scale demonstrations for long-term operation are still uncertain and need comprehensive studies to scrutinize their techno-economic and environmental impacts [122]. Fertilizers are currently the main products from digestate recovery facilities, with a market price 80% below their potential value due to the unstable composition, insufficient quality/purity, and weak physical condition [30,145].…”

Section: Ad Digestate As a Nutrient-rich Sourcementioning

confidence: 99%

“…Even though the purity of the recovered nutrients from these two approaches is independent of the digestate composition, any suspended solids in the liquid fraction will still increase operating costs (e.g., through membrane fouling) [147]. Regarding other approaches, such as ion exchange or chemical precipitation, their promotion is limited by high chemical costs (e.g., for sorbents like zeolites for adsorption and additional doses of Mg 2+ and PO 4 3− ions for precipitation) [13,122].…”

Section: Ad Digestate As a Nutrient-rich Sourcementioning

confidence: 99%

“…Stripping, membrane separation, and electrochemical-driven technologies, which recover the nutrients in the form of ammonia or phosphate salts based on separation and extraction, are available to be employed for MP production. The high product purity and the physical barrier they provide to potential pathogens and micropollutants are key points which favor using such technologies upstream of an MP production facility [36,115,122]. Membrane separation and electrochemical systems especially can simultaneously recover both nitrogen and phosphorus to support the growth of MP cultures [101,148].…”

Section: Ad Digestate As a Nutrient-rich Sourcementioning

confidence: 99%

“…Vacuum/thermal evaporation is not suitable as it cannot isolate and purify ammonia or phosphate from the condensate [140,149]. Ion exchange and adsorption technologies rely highly on the performance of the sorbents and desorbents, without which the product purity cannot be guaranteed [13,122]. Besides which, contaminants (e.g., heavy metals and antibiotics) are difficult to completely remove during the adsorption process.…”

Section: Ad Digestate As a Nutrient-rich Sourcementioning

confidence: 99%

“…ii) diffuse and transfer NH 3 across liquidinterface-gas phase; iii) remove stripping agent [92] • Temperature • pH • Gas flow rate [92,122] Industrial-scale plants, 5-12 m 3 capacity, 500-4500 Nm 3 ⋅h − 1 gas flow, 80-98% efficiency [109,123]…”

Section: Ad Digestate As a Nutrient-rich Sourcementioning

confidence: 99%

See 4 more Smart Citations

From renewable energy to sustainable protein sources: Advancement, challenges, and future roadmaps

Khoshnevisan

et al. 2022

Renewable and Sustainable Energy Reviews

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Section: Ad Digestate As a Nutrient-rich Sourcementioning

confidence: 99%

Section: Ad Digestate As a Nutrient-rich Sourcementioning

confidence: 99%

Section: Ad Digestate As a Nutrient-rich Sourcementioning

confidence: 99%

Section: Ad Digestate As a Nutrient-rich Sourcementioning

confidence: 99%

Section: Ad Digestate As a Nutrient-rich Sourcementioning

confidence: 99%

See 3 more Smart Citations

From renewable energy to sustainable protein sources: Advancement, challenges, and future roadmaps

Khoshnevisan

et al. 2022

Renewable and Sustainable Energy Reviews

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Epiberberine: a potential rumen microbial urease inhibitor to reduce ammonia release screened by targeting UreG

Zhang,

Xiong,

et al. 2024

Appl Microbiol Biotechnol

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Rumen microbial urease inhibitors have been proposed for regulating nitrogen emission and improving nitrogen utilization efficiency in ruminant livestock industry. However, studies on plant-derived natural inhibitors of rumen microbial urease are limited. Urease accessory protein UreG, plays a crucial role in facilitating urease maturation, is a new target for design of urease inhibitor. The objective of this study was to select the potential effective inhibitor of rumen microbial urease from major protoberberine alkaloids in Rhizoma Coptidis by targeting UreG. Our results showed that berberine chloride and epiberberine exerted superior inhibition potential than other alkaloids based on GTPase activity study of UreG. Berberine chloride inhibition of UreG was mixed type, while inhibition kinetics type of epiberberine was uncompetitive. Furthermore, epiberberine was found to be more effective than berberine chloride in inhibiting the combination of nickel towards UreG and inducing changes in the second structure of UreG. Molecular modeling provided the rational structural basis for the higher inhibition potential of epiberberine, amino acid residues in G1 motif and G3 motif of UreG formed interactions with D ring of berberine chloride, while interacted with A ring and D ring of epiberberine. We further demonstrated the efficacy of epiberberine in the ruminal microbial fermentation with low ammonia release and urea degradation. In conclusion, our study clearly indicates that epiberberine is a promising candidate as a safe and effective inhibitor of rumen microbial urease and provides an optimal strategy and suitable feed additive for regulating nitrogen excretion in ruminants in the future. Key points • Epiberberine is the most effective inhibitor of rumen urease from Rhizoma Coptidis. • Urease accessory protein UreG is an effective target for design of urease inhibitor. • Epiberberine may be used as natural feed additive to reducing NH3 release in ruminants.

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Manure processing as energy efficient fertilizer production technology

Jabłoński,

Łukaszewicz,

Kułażyński

2024

Clean Techn Environ Policy

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Modern agriculture relies on nitrogen fertilizers produced through the energy-intensive Haber–Bosch process. This industrial ammonia synthesis process demands a significant amount of energy (41 GJ/1000 kg of nitrogen) and contributes to greenhouse gas emissions (1920 kg of carbon dioxide when natural gas is used). While, efforts have been made to shift towards renewable energy sources for nitrogen fixation, fossil fuels remain the primary energy source.In contrast, meat production generates substantial amounts of manure containing nitrogen compounds. The utilization of manure-derived fertilization offers potential for a circular economy. However, in regions with intensive animal production, alternative forms of manure utilization may be necessary. Manure fertilization is challenging due to transport and application energy demand, environmental pollution and health risks, making it less convenient compared to mineral fertilizers. Manure application consumes up to 63% of energy required for synthesis and application of equivalent urea fertilizer.This article aims to address the critical issues related to manure fertilization and explores potential technological solutions for nitrogen recovery, with a focus on energy consumption. Our results suggest that implementation of nitrogen recovery technology significantly (more than 50% in comparison to manure) reduces energy demand for fertilizer application and transport. The lowest general fertilizer handling cost was achieved for struvite precipitation, followed by stripping and reversed osmosis concentration.By recovering nitrogen from manure and converting it into usable fertilizers, we can significantly reduce energy consumption and mitigate the environmental impact of traditional nitrogen fertilizers. Graphical abstract

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Technologies to recover nitrogen from livestock manure - A review

Cited by 66 publications

References 145 publications

From renewable energy to sustainable protein sources: Advancement, challenges, and future roadmaps

From renewable energy to sustainable protein sources: Advancement, challenges, and future roadmaps

Epiberberine: a potential rumen microbial urease inhibitor to reduce ammonia release screened by targeting UreG

Manure processing as energy efficient fertilizer production technology

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