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NEW DEVELOPMENTS IN SLOW SAND FILTRATION
Citation:
Fox, K. NEW DEVELOPMENTS IN SLOW SAND FILTRATION. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/A-93/259 (NTIS PB94112950), 1993.
Description:
Recent regulations promulgated by the U.S. Environmental Protection Agency (EPA), including the Surface Water Treatment Rule, have helped to renew the interest in the use of slow sand filtration (SSF) for treating surface waters for small communities. low sand filtration is not a new process, but is one that has been used to treat water effectively since the early 1800's. nterest in slow sand filtration in the United States has increased dramatically in the past thirteen years. he EPA and others began reexamining slow sand filtration as a simple technology for drinking water in the early 1980's. ew analytical techniques, such as particle counting, improved turbidity, improved growth media for microbiological analysis, and advanced techniques for measuring organic constituents allowed for more detailed studies than were possible in the early 1900's. he new studies looked at improved methods of filter cleaning, better turbidity and organic compound removals, and pretreatment techniques for slow sand filters. his new work led to the publication of design manuals and task committee reports describing slow sand filtration in detail.
