Biological treatment plus ozone can reduce the amount of sludge coming from wastewater treatment plants by a factor of 10. The process was developed by the Water Research Institute (WRI) of the Italian National Research Council. Biological processes are said to offer the cheapest way to treat industrial wastewater but pollutants from industries such as […]
Tag: sludge reduction
Swedish Wastewater Plant Treats Filamentous Sludge with Ozone
At Öresundsverket wastewater treatment plant in Helsingborg,Sweden, they have problems with filamentous sludge during springtime, as do many other activated sludge plants. With ozonation of the return sludge flow Öresundsverket has drastically reduced the amount of filamentous sludge and significantly increased the quality of the water. Ozone is a very strong oxidant, In the treatment […]