Application of aboveground manure slurry system as additional storage and solid separator
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Practical and efficient manure management on animal farms is important to ensure smooth operation, provide valuable nutrients to crop production, and minimize the negative impact on environment. However, manure management can be challenging for farmers due to extreme weather events and increasing size of animal operations. Many animal operations in certain regions are competing for limited crop fields and workable days for land application. Under certain circumstances, some animal farms would need additional manure treatment and transportation, resulting in increased management and costs for manure treatment, storage, and land application. Anaerobic lagoons are commonly used for the storage and treatment of swine manure in the US, especially for older pig farms. This method is suitable for storing low solid manures for farms with liquid manure handling systems, such as a flushing system and a pull-plug system. The anaerobic lagoons allow the manure to be stored and treated in a low-oxygen environment, which promotes the growth of anaerobic bacteria that break down the organic matter in the manure. However, a significant amount of residual solids can accumulate in the lagoon and form sludge over time. If the sludge is not managed properly, it can affect treatment performance of the lagoons due to reduced treatment volume. If the lagoon treatment volume is undersized or the farm has expanded, the sludge can also accumulate faster. The costs associated with desludging, hauling, and land applying the sludge can be significant and burdensome for swine producers with anaerobic lagoons with sludge buildup. Also, anaerobic lagoons are often associated with other challenges, like odor nuisance and significant nitrogen nutrient loss.
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Archive version. For the most recent information see extension.missouri.edu.
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OpenAccess.
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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License.
Provided for historical documentation only. Check Missouri Extension and Agricultural Experiment Station websites for current information.
Provided for historical documentation only. Check Missouri Extension and Agricultural Experiment Station websites for current information.