Being the manner which removes nitrate nitrogen from the soil seepage water which

摘要

PROBLEM TO BE SOLVED: To provide a method for removing nitrate nitrogen from soil seeping water, capable of being adapted to a wastewater soil seeping treatment plant necessary for aerobically keeping the surface layer of a plowed field or soil over a depth range of several ten cm and capable of efficiently and simply performing denitrification without providing a structure.;SOLUTION: The method for removing nitrate nitrogen from soil seeping water has a process for suppressing the supply of oxygen to soil seeping water and a process bringing soil seeping water suppressed in the supply of oxygen into contact with an electron donor to perform denitrification.;COPYRIGHT: (C)2003,JPO