1. Phosphorous removal by the filter materials light-weight aggregates and shellsand – a review of processes and experimental set-ups for improved design of filter systems for wastewater treatment;Adam;Vatten,2007
2. American Public Health Association (APHA), A. W. W. A. A., and Water Environmant Federation (WEF) 2005. Standard methods for the examination of water and wastewater, Washington, DC.
3. Berge, G., Chaudhary, M., 2015. Kommunale avløp. Ressursinnsats, utslipp, rensing og slamdisponering 2014. Gebyrer 2015. Rapporter. Oslo–Kongsvinger: Statistisk sentralbyrå • Statistics Norway.
4. Micropollutants in source separated wastewater streams and recovered resources of source separated sanitation;Butkovskyi;Environ. Res.,2017
5. Fate of hormones and pharmaceuticals during combined anaerobic treatment and nitrogen removal by partial nitritation-anammox in vacuum collected black water;De Graaff;Water Res.,2011