Patents:

• US6572773: Nitrification process
• WO03033411: Improvements in and relating to fluid bed expansion and fluidisation

Reference Library:

• ABD's Sludge Filtrate Nitrification Process General Description [ 206kb, PDF ]
• ABD's Tertiary NitrificationProcess General Description [ 206kb, PDF ]

Galleries

• Image Gallery
• Video Gallery

Useful Links

• Natural History Museum biological wastewater treatment pages
• Dr Bugman: hints and tips for wastewater plant operators from Air Products

Recent References:

M.J. Dempsey, K.C. Lannigan, and R.J. Minall (2005) Particulate-biofilm, expanded-bed technology for high-rate, low-cost wastewater treatment: Nitrification. Water Research 39/6 pp. 965-974

M.J. Dempsey, I. Porto, M. Mustafa, A.K. Rowan, A. Brown and I.M. Head (2006) The expanded bed biofilter: combined nitrification, solids destruction and removal of bacteria Long platform presentation at International Water Association World Water Congress, Beijing September 10-14th, 2006