ÖRESUNDSVERKET- FÖRBEHANDLAT VATTEN / Öresundsverket – Pretreated Waste Water
Through a reconstruction during 1991 Oresundsverker i Helsingborg has been upgraded to a treatment
plant for extensive nitrogen and phosphorus removal. In order to run theese biological processes in the right way, it is important to know what parameters affecting the quality of the pretreated waste water. Furthermore it is important to understand the connection between different ways of running the pretreatment and the quality of pretreated waste water. At Oresundsverket four different ways of running the pretreatment have been carried out and evaluated; preprecipitation, normal presettling, presettling with high hydraulic load and presettling with hydrolysis. The aim of this article is to characterize the pretreated waste water resulting from the different operational modes and to suggest what pretreatment that is suitable for different biological treatment methods. “Complete abstract not presented.”