The paper presents preliminary results of a study on the application of the SCD
Probiotics Technology to improve surface water quality. The Technology is based on
the principles of the effective microorganism (EM) technology developed in Japan
over thirty years ago by Dr Teuro Higa. The study was carried out in 2006-2008
in a pond with an area of 1200 m2, receiving purifi ed sewage discharged from
a constructed wetland system with willow vegetation fi lter, in operation since 1994,
to which the SCD Probiotics Technology was applied since September 2007 till
June 2008. A decrease of biogens concentrations in the pond water was recorded
after applying the tested technology – ammonium nitrate concentration decreased
by 85.2%, total nitrogen by 56.9%, while total phosphorus by 77.6%. Chlorophyll
a level also showed a decreasing tendency. However, more detailed studies are
still required to confi rm the effectiveness of the SCD Probiotics technology in the
purifi cation of surface water.