Abstract:

Consultants acting on behalf of Gatwick Airport In Sept 1995 proposed an on-line BOD monitor , the Biox-1000 which was installed as a trial unit from Nov to March 1996. Due to the success of the trial a new Biox-1010 BOD monitor was installed in April 1996 and has been in continuous operation since - automatic control has been transferred from the Toc units to the Biox at the beginning of January 1997. Three further BIOX-1010 units have been intsalled now at Gatwick airport, with also an on-line COD unit at the local WWTP.