Shallow Gutter Manure Collection System (E1800)
Research has shown and field experience has verified that corrosive and odorous gas production increases with storage time and storage temperature.
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Shallow Gutter Manure Collection System
Research has shown and field experience has verified that corrosive and odorous gas production increases with storage time and storage temperature. Manure can be removed from a swine barn by: (1) manual or mechanical scraping, (2) gravity draining, (3) flushing with dump tanks, siphons or pumping systems with automatic or manually controlled valves, or (4) continuous flushing. Flushing often requires large amounts of water (over 50 gal./ft. of gutter width per day). Flushing or recirculation from treatment lagoons is not practical in all areas because of odor nuisance potential from associated lagoons and/or soil types at the lagoon construction site that do not seal adequately. This fact sheet will discuss scrapers and gravity drain systems. The other options are covered in PIH-63, “Recirculation Systems for Manure Removal”.
Scraper systems are a means of removing manure and other wastesfrom swine buildingsforstorageortreatmentoutside the building (Figure 1). Frequent collection of wastes by scrapers conserves nitrogen because it brings the wastes quickly to storage, where relatively little nitrogen is lost. Scraper systems are not recommended for use in open gutters where the scrapers would be in contact with pigs.
One drive unit can drive from 1 to 6 scrapers, depending upon the building layout and the manufacturer’s recommendations. Single scrapers are commonly used in modified openfront buildings with partially slotted floors, while multiple units are commonly used for farrowing and nursery areas, as well as in totally slotted finishing buildings. The manufacturer usually specifies the number of gutters that can be served by one drive unit, the maximum length of chain and/or cable, and the maximum area to be scraped.