BIOLOGICAL PHOSPHORUS REMOVAL STUDY AT THE SUOMENOJA RESEARCH STATION
Enhanced biologlcal phosphorus removal (EBPR) was studied at the Suomenoja research station in Finland in cooperation with St Petersburg Water and Wastewater Works. The studied process was a mainstream process designed for 10 m3 h-l wkh anaerobic and aerobic units. EBPR proved to be a stable and reliable method that endures organic volumemc loads up to 1.0 kg BOD7 (m3 *d)-l. The phosphorus concentration in the outflow was 0.2 mg 1-1 soluble P at the maximum load, corresponding to reduction 97 %. No chemicals were used. The size of the anaerobic compartment should be less than 35 % of the activated sludge basin and the sludge recirculation rate should be close to 100 %. “Complete abstract not presented.”
Författare PIRJO RANTANEN
Nyckelord enhanced biological phosphorus removal, activated sludge, municipal wastewater, St Petersburg, wastewater treatment.