Evaluation of surface-applied char on the reduction of ammonia volatilization from broiler litter

Ritz, Casey W.; Tasistro, A.; Kissel, D. E.; Fairchild, Brian D.

doi:10.3382/japr.2010-00327

Cited by 17 publications

(9 citation statements)

References 29 publications

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“…The increase in NH 3 sorption of H 2 SO 4 -treated biochars is in agreement with the findings of Petit et al who showed that sulfur-containing groups may be as influential as oxygen functional groups for NH 3 sorption [31]. Similar increases to NH 3 sorption have been reported by Chou et al and Ritz et al [42,43]. Such increases likely result from the formation of recoverable ammonium sulphate salts on adsorbent sites possibly following similar reactions to those outlined in Chou et al [42].…”

Section: Nh 3 /Nh 4 + Sorption By Treated Hydrochar and Biocharssupporting

confidence: 91%

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Biomass-Derived Carbonaceous Adsorbents for Trapping Ammonia

et al. 2019

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The preparation of low-cost carbonaceous adsorbents for nitrogen recovery is of interest from agricultural and waste management perspectives. In this study, the gaseous ammonia (NH3) and aqueous ammonium (NH4+) sorption capacities have been measured for different types of carbonaceous chars produced under different conditions. The study includes a comparison of an oak-based hydrochar produced from hydrothermal carbonisation (HTC) at 250 °C with two biochars produced from slow pyrolysis at 450 °C and 650 °C, respectively. The chars were also chemically modified with H2SO4, H3PO4, H2O2, and KOH to investigate the potential for sorption enhancement. The highest sorption capacities for NH3 were observed for the hydrochars with typical uptake capacities ranging from 18–28 mg g−1 NH3. Sorption capacity for oak biochars is significantly lower and ranges from 4–8 mg g−1 for biochars produced at 450 °C and 650 °C, respectively. Hydrochar showed a substantially higher sorption capacity for NH3 despite its lower surface area. The CaCl2 extractable NH4+ following ammonia adsorption is incomplete. Typically, only 30–40% of the N is released upon washing with CaCl2 in form of NH4+. Post chemical modification of the chars resulted in only limited enhancement of char NH3 and NH4+ sorption. H3PO4 treatment showed the greatest potential for increasing NH3/NH4+ sorption in biochars, while KOH and H2O2 treatment increased NH3 sorption in the hydrochar. As only marginal increases to char surface area were observed following char treatment, these findings suggest that char surface functionality is more influential than surface area in terms of char NH3/NH4+ sorption.

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Section: Nh 3 /Nh 4 + Sorption By Treated Hydrochar and Biocharssupporting

confidence: 91%

“…Details of the batch ammonium adsorption tests have been provided in [24]. Briefly, 0.1 g of char (≤850 µm) is mixed with 100 mL of either 43…”

Section: Ammonium Sorption Testsmentioning

confidence: 99%

Biomass-Derived Carbonaceous Adsorbents for Trapping Ammonia

et al. 2019

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“…The essential aspect that impacts overall adsorption capacity is the biochar's specific properties, particularly large surface area (Linhoss et al 2019 ; Liu et al 2017a ). Biochar addition to the litter, on the other hand, may have little effect on the pen's environmental conditions, such as ammonia (Flores et al 2021 ; Ritz et al 2011 ). Increasing the amount of biochar in the litter, however, may increase nitrogen adsorption (Flores et al 2021 ).…”

Section: Animal Farmingmentioning

confidence: 99%

Biochar for agronomy, animal farming, anaerobic digestion, composting, water treatment, soil remediation, construction, energy storage, and carbon sequestration: a review

et al. 2022

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In the context of climate change and the circular economy, biochar has recently found many applications in various sectors as a versatile and recycled material. Here, we review application of biochar-based for carbon sink, covering agronomy, animal farming, anaerobic digestion, composting, environmental remediation, construction, and energy storage. The ultimate storage reservoirs for biochar are soils, civil infrastructure, and landfills. Biochar-based fertilisers, which combine traditional fertilisers with biochar as a nutrient carrier, are promising in agronomy. The use of biochar as a feed additive for animals shows benefits in terms of animal growth, gut microbiota, reduced enteric methane production, egg yield, and endo-toxicant mitigation. Biochar enhances anaerobic digestion operations, primarily for biogas generation and upgrading, performance and sustainability, and the mitigation of inhibitory impurities. In composts, biochar controls the release of greenhouse gases and enhances microbial activity. Co-composted biochar improves soil properties and enhances crop productivity. Pristine and engineered biochar can also be employed for water and soil remediation to remove pollutants. In construction, biochar can be added to cement or asphalt, thus conferring structural and functional advantages. Incorporating biochar in biocomposites improves insulation, electromagnetic radiation protection and moisture control. Finally, synthesising biochar-based materials for energy storage applications requires additional functionalisation.

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“…Ritz et al [47] examining the effectiveness of the surface application of chars in limiting the volatilization of NH3 from poultry litter, showed that the addition of peanut hull chars did not lower the NH3 concentration in the air. Despite this, the authors obtained a positive result and a linear reduction in NH3 concentrations after the use of acidified chars, which was probably the result of a combination of lowering the pH of the litter and immobilization of NH3 by H2SO4 on the char [47]. After applying biochar to the litter, Flores et al [48] also found no differences in ammonia emissions from litter.…”

Section: Biocover (Surface Application)mentioning

confidence: 99%

Biochar as a Sustainable Product for the Removal of Odor Emissions - Mini Literature Review

Sobol¹,

Dyjakon²

2022

Rev. Chim.

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Odors are considered as one of the most important environmental problems that may adversely influence the quality of life of people affected by their interaction. Due to the multiple sources of emissions, combined with the abundance of chemical compounds classified odor nuisance, new methods of reducing odor emissions are sought while maintaining environmental neutrality. One potential option is to use biochar, a sustainable, carbonized solid product resulting from the thermo-chemical treatment of biomass and/or organic waste. Due to its valuable properties (in particular, high specific surface area, and microporous structure), this material can be used for sorption purposes. Although the issue of using biochar to remove odor emissions is relatively new, in recent years new research directions have been undertaken to determine the sorption efficiency of biochar not only as a direct adsorbent but also in alternative applications. Therefore, this paper aimed to review the most important directions of biochar management in the removal of odor-causing compounds and to highlight the current advances undertaken in this direction. It was distinguished that biochar can enhance odor mitigation by being an additive to compost, a biofiltration medium, a direct adsorbent, a soil additive, a substrate for the production of the odor-absorbing product, a dietary supplement, and a biocover. However, further research is needed to strengthen the range of greater use of biochar in practice.

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Evaluation of surface-applied char on the reduction of ammonia volatilization from broiler litter

Cited by 17 publications

References 29 publications

Biomass-Derived Carbonaceous Adsorbents for Trapping Ammonia

Biomass-Derived Carbonaceous Adsorbents for Trapping Ammonia

Biochar for agronomy, animal farming, anaerobic digestion, composting, water treatment, soil remediation, construction, energy storage, and carbon sequestration: a review

Biochar as a Sustainable Product for the Removal of Odor Emissions - Mini Literature Review

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