An Investigation into the Removal of Algae by Fine Sand/Silt Filtration

摘要

One of the problems in water and wastewater treatment is the lack of an economical technology to remove algae from eutrophic surface waters and stabilization ponds. A laboratory scale study was undertaken to determine the feasibility of a method of filtering algae from water using fine sand/silt as a filter media. Five median sand sizes and four bed depths were examined in constant head experiments with the algae Scenedesmus quadricauda. A total of 46 experiments were conducted with continuous measurements of flow rate, head loss and effluent quality.