Develop the system of selective catalytic reduction fume denitrification .
选择性催化还原烟气脱硝系统开发。
Terrestrial microorganisms play a vital role in soil nitrogen cycling . They participate in important ecological processes such as nitrogen fixation , ammonification , nitrification and denitrification .
This paper surveyed the situation of nitrate pollution in water and its harms to humam being , the development of the biofilm-electrode process used in denitrification , and gave further discussions about its fundamental principle and some effective factors .