Center Pivot Design for Effluent Irrigation of Agricultural Forage Crops
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ITRC Report No. |
P 07-002 |
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Web Address |
http://www.itrc.org/papers/centerpivot/centerpivot.pdf |
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Length |
16 pages |
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Authors |
Franklin Gaudi, Daniel Howes, and Donald Ton |
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Presented |
Irrigation Association 28th Annual International Irrigation Show. San Diego, CA. December 9, 2007. |
Summary
Balancing the continuous supply of domestic wastewater from effluent treatment plants with fluctuating crop water demands requires unique irrigation design strategies. A key design consideration when utilizing disinfected secondary treated city water is to maximize the re-use of effluent in winter months, when forage crop water demands are low, yet still produce minimal deep percolation. Twenty-seven center pivots in Palmdale, California required new custom-designed sprinkler packages to dispose of approximately 7,000 gallons per minute of treated wastewater. Through innovative design efforts, extensive testing and field experimentation, a standardized package has been adopted by the County Sanitation District of Los Angeles County that enables a highly efficient application of re-use city wastewater without groundwater degradation throughout the year.
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