1. Biofilters: flexible, reliable biological reactors;Pujol;Water Sci. Technol.,1994
2. High rate aerobic wastewater treatment processes — what next?;Stephenson;Proc. Third International Symposium on Environmental Biotechnology, Ostend, Belgium,1997
3. A keypoint of nitrification in an upflow biofiltration reactor;Pujol;Water Sci. Technol.,1998
4. L. Qiu, J. Ma, L. Zhang and Y. Yang, Nitrification performance and its kinetic characteristic of biological aerated filter (BAF). FUWWS – Decentralization and reuse, IWA International Conference Xi’an, China, 2005.
5. J.P. Leglise, P. Gilles and H. Moreaud, A new development in biological aerated filters. 53rd Annual WPCF Conference, Las Vegas, 1980.