Pelletizing Animal Manures for On- and Off-Farm Use

Hao, Xiying; He, Zhongqi

doi:10.2134/asaspecpub67.c23

Cited by 8 publications

(4 citation statements)

References 64 publications

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“…The product can satisfy nutrient requirements under organic vegetable production guidelines and replace commercial fertilizer use in sink areas. Hao and He (2019) note that pelleting is a promising option for managing animal manures but emphasize that more research is needed on all aspects of this technology.…”

Section: Manure Treatmentmentioning

confidence: 99%

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Poultry manureshed management: Opportunities and challenges for a vertically integrated industry

et al. 2021

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Manureshed management seeks to address systemic imbalances in nutrient distributions at scales beyond the farmgate and potentially across county and state boundaries. The U.S. poultry industry, which includes broilers, layers, pullets, and turkeys, has many characteristics that are compatible with achieving a vision of manureshed management, including a history of engaging in local and regional programs to better distribute manure resources. Despite widespread vertical integration that supports large‐scale strategic decision making and dry manures that favor off‐farm transport, there are still many challenges to poultry manureshed management that require engaging stakeholders other than just the poultry industry. Analysis of county‐level nutrient budgets highlights the industry's “mega‐manureshed,” extending from the Mid‐Atlantic, across the southeast, and into northwest Arkansas, Oklahoma, and Texas. The analysis also identifies areas with legacy nutrient build‐up that are still present today. Implementing manureshed management in the U.S. poultry industry requires comprehensive consideration of manure treatment technologies, alternative uses such as bioenergy production, market development for treated manure products, transport of manure nutrients from source to sink areas, and manure brokering programs that promote manure nutrient distribution. Fortunately, past and present evolution and innovation within the industry places it as a likely leader of the manureshed vision.

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Section: Manure Treatmentmentioning

confidence: 99%

“…Hao and He (2019) address pelletizing of animal manure and highlight improvements that could potentially increase use as a fertilizer. Pelletizing can reduce manure volume and weight by 20–50% while producing a product that is more uniform and easier to handle than unpelletized manure.…”

Section: Manure Treatmentmentioning

confidence: 99%

Poultry manureshed management: Opportunities and challenges for a vertically integrated industry

et al. 2021

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“…The recovered struvite can be used as a solid organic fertilizer with controlled release characteristics [37]. These diverse methods contribute to sustainable manure management by converting it into valuable fertilizers and enhancing soil health [38] However, with a comprehension of the connection between the application of manure and its associated environmental consequences, many countries have established specific and, in certain instances, stringent regulations concerning the recycling of manure and the utilization of nutrients derived from animal waste in agricultural production. For instance, in the European Union (EU), stringent regulations are in place to prevent the field application of manure.…”

Section: Global Livestock Manure Management Practicesmentioning

confidence: 99%

A Review on the Anaerobic Co-Digestion of Livestock Manures in the Context of Sustainable Waste Management

Kadam,

Jo,

Lee

et al. 2024

Energies

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As the worldwide demand for meat per person is continuously increasing, there is a corresponding rise in the number of livestock animals, leading to an increase in livestock manure. Selecting appropriate treatment technologies for livestock manures is still a complex task and considerable debates over this issue persist. To develop a more comprehensive understanding of the manure treatment framework, this review was undertaken to assess the most utilized manure management technologies and underscore their respective challenges. Anaerobic digestion has become a commercial reality for treating livestock manures. However, the mono-digestion of single substrates comes with certain drawbacks associated with manure characteristics. Anaerobic co-digestion, involving the utilization of multiple feedstocks, holds the potential to overcome these limitations. Extensive research and development have underscored numerous intrinsic benefits of co-digestion. These include improved digestibility resulting from the synergistic effects of co-substrates and enhanced process stability. This review underscores the limitations associated with the mono-digestion of livestock manures and critically evaluates the advantages of their co-digestion with carbon-rich substrates. Additionally, this review delves into key livestock manure management practices globally, emphasizing the significance of co-digesting livestock manures while addressing the progress and challenges in this field.

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“…Previous studies have also established the potential of pelletizing animal manure with or without binding agents (Hao and He, 2020). Finding effective use for CGB and other agricultural byproducts as feedstock in making new products is economically and environmentally beneficial to both the gins and the producers of the additive materials in terms of circularity and reduced costs of handling/disposal (Haque et al, 2021).…”

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confidence: 99%

Nutrient Properties of Fresh and Composted Cotton Gin Byproducts and Cattle Manure for Soil Amendment

Alege,

Blake,

Donohoe

et al. 2024

Journal of the ASABE

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Highlights N and P concentrations in composted vs. fresh Cotton Gin Byproducts (CGB) were at least 55% (dry basis) higher. P concentrations in composted vs. raw Beef Manure (BM) were approximately 25% higher. Characterization informs product formulations and process parameters for co-pelleting CGB with BM. Accurate formulation would enhance the potential for sustainable utilization of both byproducts. Abstract. Applications of fresh and composted Cotton Gin Byproducts (CGB) and cattle manure as soil amendments are very common practices in the industry. However, composting and direct application of the materials are often limited by factors such as bulkiness, varying nutrient composition and application rates, and handling/transportation costs. This study was conducted to characterize fresh and composted CGB and beef manure (BM) for subsequent co-pelletization and utilization as soil amendments, and to investigate the effects of composting on the nutrient composition and agronomic values. Raw and composted samples of CGB and BM at different storage periods and composting ages were sourced from two commercial gins and a beef farm. Nutrient content, acidity, and compost maturity indices such as carbon/nitrogen (C/N) and ammonium/nitrate (NH4-N/NO3-N) ratios were determined and compared. All samples were obtained at four sampling points on the respective storage or composting piles. The results showed that composted CGB generally contained at least 55% more total-N and phosphorus oxide (P2O5), but approximately 35% less potassium oxide (K2O) than fresh CGB. Composted BM had approximately 3% less total-N, but at least 25% more P2O5 than raw BM. The nutrient compositions affirm the potential for co-pelletizing both forms of CGB and BM to improve the agronomic values and enhance the utilization as soil amendments. In addition, establishing the various properties of CGB and BM is crucial for determining product formulations and selecting process parameters for co-pelletization. Keywords: Beef manure, Composting, Cotton ginning, Nutrient composition, Soil fertility.

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Pelletizing Animal Manures for On- and Off-Farm Use

Cited by 8 publications

References 64 publications

Poultry manureshed management: Opportunities and challenges for a vertically integrated industry

Poultry manureshed management: Opportunities and challenges for a vertically integrated industry

A Review on the Anaerobic Co-Digestion of Livestock Manures in the Context of Sustainable Waste Management

Nutrient Properties of Fresh and Composted Cotton Gin Byproducts and Cattle Manure for Soil Amendment

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