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|Engineering aspects of an experimental system for land renovation of secondary effluent
|University of Minnesota. Agricultural Research Service.
Nylund, James R.
Larson, R. E.
Clapp, C. E.
Linden, Dennis R.
Larson, William E., 1921-
Apple Valley Wastewater Treatment Plant, Minnesota
|Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
|Special report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 78-23.
Abstract: A research system was designed and installed at the Apple Valley Wastewater Treatment Plant, two miles south of Rosemount, Minnesota, to develop agricultural management practices for removal of nitrogen from municipal wastewater effluent. A solid set irrigation system was designed and installed to apply wastewater effluent to 12 test blocks, each measuring 60 x 150 ft. A perforated plastic drainage tile was placed lengthwise in each block at a depth equivalent to the normal water table level and opening at one end of the block into a sampling station. Six blocks were planted to corn and six planted to eight species of forages. The effluent was applied at rates up to 15 ft/yr. This report presents the engineering considerations in the design of a solid set irrigation system and drain tile and monitoring system for evaluating the influence of the effluent application and agronomic practices on drainage waters.
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