Effective Microorganisms (EM) is a microorganism that
effective to destroy organic compound [13]. These
microorganisms derived from natural microbes cultured and
expanded using natural bait such as molasses, rice bran protein
and other compounds that do not harm the creatures. There are
applied to many aspects of the problems, which are based on
biodegradable waste, sewage, dirt in the bathroom, septic and
sewer smell. EM is easily purchased in the general market for
affordable. A water resource in Bangkokthonburi University is
the place for support the wastewater from many building of
University. Water released into this water resource are the
water from washing equipment, bathroom activities that make
water smell and caused by organic substances in wastewater.
These characteristics cause problems for environment of this
area.