BioCompact® systems have been in residential and commercial use in Europe since the late 1970’s. Many went into former East Germany to serve as efficient municipal systems after the re-unification of the country. A re-test of the earliest installations by German authorities on some of the earliest BioCompact® systems installed over 15 years earlier, have confirmed the continuous efficiency, and the durability of the systems. One of the earliest installations has been continuously monitored by German authorities for over a year, resulting in the confirmation that the efficiency of operation is constantly around 98% in the removal of the BOD and COD load in residential wastewater. This excellent track record has been verified with the first USA installation (1999).
Household effluent can be quite alkaline, due to the use of laundry and dishwasher detergents. An efficient biological treatment system also neutralizes the alkalinity and brings the pH down to the “natural” level of about pH 7.2. The BioCompact® performs this function well, as evidenced by the constant pH value maintained in the effluent, despite some extreme alkaline values in the influent.
The first land installation of a BioCompact® in the United States (in Minnesota in 1999) was in time for the 4th of July weekend of the lakeshore community it was installed in, meaning that there was an extraordinary production of sewage at the time. Despite this massive load of sewage upon start-up, the values for nitrogen and for suspended solids stayed well within limits.
The design of BioCompact® units is based on the widely accepted strict German environmental standard ATV – A122. The quality of the treated effluent is comparable to other state-of-the-art, municipal wastewater treatment plants, including nitrification and denitrification.