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Sequencing Batch Reactors for Nutrient Removal at Small Wastewater Treatment Plants

1993; Pergamon Press; Volume: 28; Issue: 10 Linguagem: Inglês

10.2166/wst.1993.0239

1996-9732

Bjørn Rusten, Helge Eliassen,

Wastewater Treatment and Nitrogen Removal

In order to optimize the sequencing batch reactor (SBR) process for nutrient removal at small wastewater treatment plants, a two year study was carried out at a treatment plant designed for 300 population equivalents. Different operating cycles, solids retention times (SRTs) and periods with co-precipitation were included in the test program. Based on the results, recommendations for achieving nitrification, denitrification and biological phosphorus removal were given. A suitable coagulant (and the optimum dosage) for co-precipitation was found as well.