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Efficiency of Filters Filled with Rockfos for Phosphorus Removal from Domestic Sewage

Pytka-Woszczyło Aneta, Różańska-Boczula Monika, Gizińska-Górna Magdalena, Marzec Michał, Listosz Agnieszka, Jóźwiakowski Krzysztof

Advances in Science and Technology. Research Journal

2022

Vol. 16, no 4

176--188

The goal of the present study was to evaluate the efficiency of filters filled with Rockfos for removal of phosphorus (Total-P) from domestic wastewater using, Rockfos is a material obtained by calcination of carbonate-silica rock (opoka) at a temperature of 900 °C. A field study was conducted in two filters with volumes of 2.0 and 0.8 m3 which were components of hybrid constructed wetlands with an average capacity of 2.0 m3/L, located in two national parks in south eastern Poland. Samples of the influent to and the effluent from the filters were analyzed for Total-P concentrations and pH. Eighty sewage samples were tested over a five year study period. It was shown that the test filters removed Total-P with an average efficiency of 31.5% and 30.2% and that they could be successfully used to remove P from domestic wastewater in small wastewater treatment plants.