Manure Storage Sample Clauses

Manure Storage. Solid manure (from the feedlot and from scraped freestall barns) is typically stored in uncovered storage stockpiles. Because open piles are subjected to rain, they exhibit emission profiles of both aerobic and anaerobic conditions over time. When wet, the stockpiles will be potential sources of NH3, H2S, nitrous oxide, and odor causing compounds due to anaerobic decomposition. When dry, they will be emission sources of nitrous oxide from aerobic decomposition, and particulate matter. Manure handled as a slurry or liquid is stored in earthen impoundments (e.g., anaerobic lagoons). Above ground tanks are another option for storage of these types of manures but are not commonly used. Storage impoundments are designed to hold the total volume of manure and process wastewater generated during the storage period, the increase in volume due to normal precipitation and the increase in volume due to the 25-year, 24-hour storm event while maintaining a minimum freeboard depth of one foot at all times. Emissions from storage tanks and ponds include NH3, H2S, VOCs and CH4. The magnitude of emissions will depend primarily on the length of the storage period and temperature of the manure. Low temperatures will inhibit the microbial activity responsible for the creation of H2S and CH4, but may increase VOC emissions and odors. Long storage periods will increase the opportunity for emissions of VOCs, H2S and NH3.
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Manure Storage. Most large hog farms have from 90 to 365 days of manure storage capacity (NPPC, 1996). Storage is in either an anaerobic lagoon or a storage facility. Typical storage facilities include deep pits, tanks, and earthen ponds. Anaerobic lagoons provide both manure stabilization and storage. The use of storage tanks and ponds generally is limited to operations with deep pits and pull-plug pits where manure is handled as a slurry. Pit recharge and flush systems typically use anaerobic lagoons, because of the need for supernatant for use as recharge or flush water. Anaerobic lagoons emit less VOCs and noxious odors than storage facilities, but emit more CH4. Storage facilities and anaerobic lagoons are operated differently. Storage facilities hold manure until the vessel is full and then are fully emptied at the next available opportunity. To maintain proper microbial balance, lagoons are sized for a design manure acceptance rate and are emptied on a schedule (but are never fully emptied). This section describes the types of lagoons and storage facilities used and the factors affecting their design. Storage facilities include deep pits (beneath confinement buildings), in-ground tanks, above-ground tanks, and earthen ponds. Most storage facilities are open to the atmosphere. Manure storage tanks and earthen ponds not only must have adequate capacity to store the manure produced during the storage period but must also store any process wastewaters or runoff that require storage. In addition, provision for storage of the volume of settled solids that will accumulate for the period between solids removal is necessary. Due to the size of storage structures for liquid and slurry type manures, it is difficult to completely mix and empty these facilities during draw down at the end of each storage period. Thus, an accumulation of settled solids will occur requiring a complete clean out of the facility periodically. Estimates of rates of settled solids accumulation for various manures can be found in the Agricultural Waste Management Field Handbook (USDA, 1992). The microbial processes responsible for CH4 and VOC formation also occur in storage tanks and ponds. However, the necessary balance in microbial populations for the complete reduction of organic carbon to CH4 and CO2 is never established due to higher organic loading rates and accumulations of high concentrations of VOCs, which inhibit CH4 formation. Thus, emissions of CH4 from manure storage tanks and ponds will ...
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Related to Manure Storage

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  • Transport The Parents consent to the Pupil travelling by any form of public transport and / or in a motor vehicle driven by a responsible adult who is duly licensed and insured to drive a vehicle of that type.

  • Storage The ordering agency is responsible for storage if the contractor delivers within the time required and the agency cannot accept delivery.

  • Cloud storage DSHS Confidential Information requires protections equal to or greater than those specified elsewhere within this exhibit. Cloud storage of Data is problematic as neither DSHS nor the Contractor has control of the environment in which the Data is stored. For this reason: (1) DSHS Data will not be stored in any consumer grade Cloud solution, unless all of the following conditions are met: (a) Contractor has written procedures in place governing use of the Cloud storage and Contractor attests in writing that all such procedures will be uniformly followed. (b) The Data will be Encrypted while within the Contractor network. (c) The Data will remain Encrypted during transmission to the Cloud. (d) The Data will remain Encrypted at all times while residing within the Cloud storage solution. (e) The Contractor will possess a decryption key for the Data, and the decryption key will be possessed only by the Contractor and/or DSHS. (f) The Data will not be downloaded to non-authorized systems, meaning systems that are not on either the DSHS or Contractor networks. (g) The Data will not be decrypted until downloaded onto a computer within the control of an Authorized User and within either the DSHS or Contractor’s network. (2) Data will not be stored on an Enterprise Cloud storage solution unless either: (a) The Cloud storage provider is treated as any other Sub-Contractor, and agrees in writing to all of the requirements within this exhibit; or, (b) The Cloud storage solution used is FedRAMP certified. (3) If the Data includes protected health information covered by the Health Insurance Portability and Accountability Act (HIPAA), the Cloud provider must sign a Business Associate Agreement prior to Data being stored in their Cloud solution.

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