Abstract:
Laboratory incubation experiments were conducted to study the influence of
Effective Microorganisms (EM) and Garbage Enzyme (GE) on the removal of
ammonia (NH3). Accumulation of nitrite (N02) and nitrate (N03) from the reduction
of NH3 were observed for duration of 96 hours. Analysis were made each 24 hours to
determine the changes of concentration using Indophenols Blue Colorimetric Method
for NH3 analysis, Photometric Detection Method for N02 analysis and Screening
Method for N03 analysis, certified from APHA standard method. Both studies
showed promising removal efficiency of NH3 with removal efficiency above 90 % at
th
96
hour after treatment with EM/GE. The result indicates positively that nutrient
recycling is possible by converting NH3 to N03 with treatment of EM/GE. It is
deduced that treatment with GE with concentration ranging from 0.4 % - 0.8 % as a
new alternative in treatment ofNH3 . The performance of GE in treatment ofNH3 can
be enhanced through enzymatic engineering in future research.