Abstract
AWM (Animal Waste Management) is a software design tool. It has been traditionally used for designing animal waste storage and treatment facilities. It estimates waste production of liquids and solids from animal feeding operations based upon the type and size of animal herd, site-specific weather information, and user-specified withdrawal months or storage period. The USDA/NRCS field staff and Technical Service Providers (TSPs) also feed the AWM waste generated numbers into the Manure Management Planner (MMP) for developing Comprehensive Nutrient Management Plans (CNMPs). Recently the AWM was upgraded to incorporate the capability for evaluating existing waste storage structures for their adequacy in storing the waste during the critical period. The upgraded AWM also helps in designing the new facility for the “Total” waste or for the “Additional” waste where AWM accounts for the capacity of the existing facility in the design process. This paper describes these capabilities with examples. It also demonstrates how to evaluate different options for a situation where the capacity of an existing facility becomes inadequate to store the waste due to addition of new animals to the operation.
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