title: Boosting nitrification with the BABE technology.
abstract: Over the past years there has been a growing interest for compact, simple, low cost and robust technologies to upgrade wastewater treatment plants for nitrogen removal. The BABE (Bio Augmentation Batch Enhanced) technology is such a new concept. This patented system for biological treatment of sludge liquor - the effluent produced from digested sludge - uses a new principle, boosting the nitrifying bacteria in a side stream in such a way that the activated sludge in the main process is augmented. This augmentation increases the nitrification capacity of the wastewater treatment plant (wwtp). Experiments on a practical scale have demonstrated the effective and stable operation of the BABE technology. Model studies supported by the results of the full-scale tests showed that the technology can be applied in several situations, i.e. 1) introducing nitrification at high loaded wwtps; 2) enhancing nitrification at wwtps with incomplete nitrification; 3) enlarging denitrification at wwtps with complete nitrification. Most likely this year a full-scale application will be realized in the Netherlands at a wwtp with insufficient nitrification throughout the year.
authors.affiliation: DHV Water BV, P.O. Box 484, 3800 AL, Amersfoort, The Netherlands.
authors.forename: D H J G
authors.initials: DH
authors.lastname: Berends
authors.forename: S
authors.initials: S
authors.lastname: Salem
authors.forename: H F
authors.initials: HF
authors.lastname: van der Roest
authors.forename: M C M
authors.initials: MC
authors.lastname: van Loosdrecht
mesh_terms: D000641:Ammonia / Q000032:analysis / Q000302:isolation & purification; D019149:Bioreactors; D009584:Nitrogen / Q000302:isolation & purification* / Q000378:metabolism*; D012722:Sewage / Q000032:analysis; D018508:Water Purification / Q000379:methods*
chemical_list: D012722:Sewage; D000641:Ammonia; D009584:Nitrogen