SIZE MATTERS: AN OVERVIEW OF SCREENING PROCESSES
Abstract:Screening is one of the most important components of a wastewater treatment facility and is essential to reduce downstream maintenance problems. To minimize downstream maintenance problems and improve aesthetics in downstream processes, there is a growing tendency to install screens with finer openings. In addition, some newer wastewater treatment processes, such as membrane bioreactors and biological aerated filters, require screen openings in the range of 3 mm or less.
There are a number of fine screen technologies available and selection of the most appropriate technology requires careful consideration of site specific objectives and constraints. When using fine screens, a careful review of the screenings handling systems is also required to minimize the overall volume of screenings, reduce captured fecal matter and reduce odours.
Document Type: Research Article
Publication date: January 1, 2005
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