Considerations of pull-plug sedimentation basin for dairy manure management

Abstract

"Many small dairy farms have limited practical and easy-to-operate options for manure management. A flush system for manure removal is attractive due to reduced chore time and increased barn cleanliness. However, flush systems require greater attention to onsite water management that result from having to store water with high nutrient and solids concentrations. There are several different types of lagoons commonly employed for agricultural use. Lagoons designed for treatment and solids reduction via digestion can be aerobic or facultative/anaerobic. Anaerobic treatment lagoons can be ideal for many agricultural applications when it comes to water and manure management. The lagoon, typically 8-15 feet deep, provides some digestion of manure solids while serving as a holding basin when land application is not possible due to frozen ground or saturated soils. Storage lagoons are another type that aren't designed for the purpose of solids reduction but, rather, for holding water or a water and solids slurry in order to better manage the on-farm water inventory. A portion of lagoon volume is designated for holding solids, regardless of the purpose or type of the lagoon. Solids removal prior to a lagoon may help increase lagoon capacity and reduce, if not eliminate, the need for costly lagoon dredging."--First page.Written by Tim Canter (Extension Specialist, Agricultural Systems Management), Teng Teeh Lim (Associate Professor, Agricultural Systems Management), Troy Chockley (Environmental Engineer, USDA-N)New 10/20Includes bibliographical reference

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