Adding food processing waste waters on three days and resting for two days is not superior to adding on five days with no resting days. This is much less than the recommended 500 lbs of BOD per acre per day. Impacts Research to date indicate BOD loading rates must be less than 75 lbs of BOD per acre per day. PROJECT MODIFICATIONS: Nothing significant to report during this reporting period. TARGET AUDIENCES: Nothing significant to report during this reporting period. PARTICIPANTS: Nothing significant to report during this reporting period. Adding 375 lbs of BOD per acre per week to sand columns in three days per week did not produce less Mn and Fe in leachate than adding it in five days. Manganese and Fe were present in leachate from 18-inch, sand columns after receiving 125 lbs of BOD per acre per day for about 10 weeks, from 36-inch columns after 83 weeks, but not from 72-inch columns after 92 weeks. Cold temperatures (2 and 4◦ C) did not reduce microbial activity as indicated by leaching of Mn and Fe. Manganese and Fe leached from columns that received 75 lbs of BOD per acre per day or more.
Progress 05/01/07 to 04/30/12 Outputs OUTPUTS: Sugar water, simulating waste waters from Michigan food processing facilities, was added to columns of sand, loamy sand and clay loam materials in the laboratory.
0 kommentar(er)
