FRAMTAGNING AV ETT DATORBASERAT REGLER- OCH INFORMATIONSSYSTEM FÖR CENTRIFUGPROCESSEN VID SICKLA SLAMBEHANDLINGSANLÄGGNING I STOCKHOLM / A Computer Based System for the Centrifuge Process in Sewage Treatment
It has been more and more common to use centrifuges for the removal of sludge during sewage processing. The centrifuge process is relatively complex and requires valuable polymers to be effective. In addition reject water is re-introduced for re-purification which usually entails an inordinate extra load on the sewage plant, particularly during periods of high pollutant levels in the reject water. An effective control over the centrifuge process is consequently necessary. This is important especially with regards to the overall functioning of the entire sewage plant. A new computer based system has been in operation since March 1984 at the Sickla Sewage Treatment Plant in Stockholm and an exhaustive evaluation has been carried out, covering the first five month of operation. The results of this evaluation, which was financed and supported by the Swedish Board for Technical Development, are also presented here