PURIFICATION OF VARIOUS WASTE WATER BY COMBINATION OF WATER CHANNEL TYPE SAND FILTER BED AND POULTRY FARM

摘要

PURPOSE:To perform the replenishment of poultry feed simultaneously with waste water treatment, by combining a water channel type sand filter bed and poultry farming. CONSTITUTION:A cutoff film 2 i laid on the bottom part of a trench trough 1 provided in soil by digging and various waste water are flowed onto coarse sand 4 allowed to pack the trench trough 1 from the waste water collecting pipe 3 arranged in the cutoff film 2. The solid substance 5 remaining on the coarse sand 4 is used as the feed of a chicken 6 while the coarse sand 4 and the solid substance 5 are mixed by the chicken 6 to prevent the clogging of a sand filter bed. At the same time, the propagation of an aerobic microorganism is promoted.