METHOD OF TREATING THE LIQUID FRACTION OF PIG MANURE BY AN AEROBIC BIOFILTER AND SEQUESTRATION OF THE SOLID FRACTION BY ZEOLITE

摘要

This disclosure relates to a process and apparatus for biological treatment of the liquidfraction of the separated pig manure by an upflow aerobic biofilter and coating the solidfraction by powder zeolite. The aerobic biofilter comprises a reactor filled with poroustubular media made with an open net type material. The media prevent clogging bysuspended material in the manure hut allows accumulation of biomass within thereactor and high oxygen transfer.