This factsheet describes the use of intermittent sand filters (ISF) for decentralised wastewater treatment, including the different types of intermittent sand filters, their advantages and disadvantages, performance, applicability, operation and maintenance, and cost.
EPA (1999): Wastewater Technology Fact Sheet - Intermittent Sand Filters. Washington D.C.: United States Environmental Protection Agency (EPA) URL [Accessed: 06.09.2012]