Evaluation of Nutrient Runoff from Three Equine Stall Waste Storage Systems

Komar, Stephen; Miskewitz, Robert; Obropta, Christopher C.; Bamka, William J.; Mickel, R.

doi:10.13031/2013.34943

Cited by 10 publications

(10 citation statements)

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“…A typical 455-kg horse produces 0.023 m 3 of manure per day weighing more than 22.7 kg (USDA-NRCS, 2000). In addition to manure, stall waste includes bedding materials, which varies based on individual management, but has been found to range from 2.7 kg per day for wood shavings to 3.1 kg per day for straw (Komar et al, 2010). Thus, caring for a single horse may result in more than 9,400 kg of waste material annually.…”

Section: Introductionmentioning

confidence: 99%

Effects of bedding type on compost quality of equine stall waste: Implications for small horse farms

Komar

Miskewitz

Westendorf

et al. 2012

Journal of Animal Science

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Our objective in this study is to compare 4 of the most common bedding materials used by equine operations on the chemical and physical characteristics of composted equine stall waste. Twelve Standardbred horses were adapted to the barn and surrounding environment for 2 wk before the start of the study. Groups of 3 horses were bedded on 1 of 4 different bedding types (wood shavings, pelletized wood materials, long straw, and pelletized straw) for 16 h per day for 18 d. Stalls were cleaned by trained staff daily, and all contents removed were weighed and stored separately by bedding material on a level covered concrete pad for the duration of the study. Compost piles were constructed using 3 replicate piles of each bedding type in a randomized complete block design. Each pile was equipped with a temperature sensor and data logger. Water was added and piles were turned weekly throughout the 100-d compost process. Initial and final samples were taken, dried, and analyzed for DM mass, OM, inorganic nitrogen (nitrate-N and ammonium-N), electrical conductivity, and soluble (plant-available) nutrients. Data were analyzed using the GLM procedure, and means were separated using Fischer's protected LSD test (P < 0.05). No significant temperature differences were observed among the bedding materials. The composting process resulted in significant reductions (P < 0.05) in DM mass for each of the 4 bedding materials. The composting process resulted in significant reductions (P < 0.05) in OM and C:N ratio for all 4 bedding materials. The composted long straw material had greater concentrations of total Kjeldahl nitrogen (P < 0.05), nitrate-N (P < 0.05), and ammonium-N (P < 0.05) than the composted wood shavings. This study demonstrated that incorporating a simple aerobic composting system may greatly reduce the overall volume of manure and yield a material that is beneficial for land application in pasture-based systems. The straw-based materials may be better suited for composting and subsequent land application; however, factors such as suitability of the bedding material for equine use, material cost, labor, and availability must be considered when selecting a bedding material.

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Section: Introductionmentioning

confidence: 99%

Effects of bedding type on compost quality of equine stall waste: Implications for small horse farms

Komar

Miskewitz

Westendorf

et al. 2012

Journal of Animal Science

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“…where P (kg/day) is the potential amount of compost product produced a day, Worg is the quantity of available organic waste generated in a day, and Wcomp (−) is the mass reduction rate during the composting process. The mass reduction rate of horse manure during composting has been reported by Komar et al [17] as 38% for the turned pile method. For the mass reduction rate of organic waste from households and hotels during composting, 63% [1] was used.…”

Section: Estimation Of the Supply And Demand Of Organic Fertilizermentioning

confidence: 85%

Solid waste flow and composition determination for sustainable waste management in Gili Trawangan, Indonesia

Sekito

Dote

Hindarman³

2019

SN Appl. Sci.

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The aim of this study is to determine the waste flow, solid waste generation rates, and recycling rate in Gili Trawangan, Indonesia, as a case study of small islands in order to propose an appropriate solid waste management strategy. The compost supply and demand balance was estimated to determine the effectiveness of different composting techniques in the reduction of landfill waste on small islands. The hospitality industry contributed to over 70% of the total waste generation; in particular, about 50% was generated by large hotels. This indicates that recovering resources from the waste generated from hospitality-related sources is an effective way of reducing landfill waste. A new solid waste management strategy was proposed to reduce the environmental load and implement a sustainable solid waste management strategy consisting of organic waste composting and zero waste landfilling. As the demand for organic fertilizer was larger than the potential supply, the composting of organic waste from hotels and households would be feasible. Although the estimated cost-benefit ratio of the proposed waste management system was insufficient to operate the proposed system, a charge of only 0.08 USD to tourists is necessary for its implementation. The presented results and conclusions provide support for the decisions of the Lombok Regency and can be a guideline for the implementation of solid waste management strategies on other small islands.

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“…Most horse keepers use softwood for bedding, which corresponds to estimated Swedish statistics [10]. The use of softwood is also positive for low nitrogen leakage and run-off, which are also affected by turning and cover of compost [14,16]. Whether or not horse keepers turn or cover their manure piles was not investigated in this case, but it was noticed that turning of compost to facilitate degradability was mentioned by a couple of horse keepers.…”

Section: Biofertilizer Application and Nutrient Recyclingmentioning

confidence: 90%

“…Other studies mention straw, peat, hemp, and wood and straw pellets among bedding materials [11][12][13]. Added bedding material can increase the amount of nutrients in collected and treated horse manure, indicated for both composted horse manure, where peat increased nitrogen and straw increased potassium [12,14], and in anaerobic digestion simulations [15].…”

Section: Introductionmentioning

confidence: 99%

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Prospects for Increased Energy Recovery from Horse Manure—A Case Study of Management Practices, Environmental Impact and Costs

2017

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A transition to renewable energy sources and a circular economy has increased interest in renewable resources not usually considered as energy sources or plant nutrient resources. Horse manure exemplifies this, as it is sometimes recycled but not often used for energy purposes. The purpose of this study was to explore horse manure management in a Swedish municipality and prospects for energy recovery. The case study includes a survey of horse manure practices, environmental assessment of horse manure treatment in a biogas plant, including associated transport, compared to on-site unmanaged composting, and finally a simplified economic analysis. It was found that horse manure management was characterized by indoor collection of manure most of the year and storage on concrete slabs or in containers, followed by direct application on arable land. Softwood was predominantly used as bedding, and bedding accounted for a relatively small proportion (13%) of the total mix. Anaerobic digestion was indicated to reduce potential environmental impact in comparison to unmanaged composting, mainly due to biogas substituting use of fossil fuels. The relative environmental impact from transport of manure from horse facilities to anaerobic digestion plant was small. Results also indicate a relatively high cost for horse keepers to change from composting on site to anaerobic digestion in a centralized plant.

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Evaluation of Nutrient Runoff from Three Equine Stall Waste Storage Systems

Cited by 10 publications

References 0 publications

Effects of bedding type on compost quality of equine stall waste: Implications for small horse farms

Effects of bedding type on compost quality of equine stall waste: Implications for small horse farms

Solid waste flow and composition determination for sustainable waste management in Gili Trawangan, Indonesia

Prospects for Increased Energy Recovery from Horse Manure—A Case Study of Management Practices, Environmental Impact and Costs

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