AnoxKaldnes™ MBBR Technology - Kruger2890,02-Kaldnes_en... · Kaldnes™ AnoxKaldnes April 2009...

Kaldnes™ AnoxKaldnes April 2009 AnoxKaldnes™ MBBR Technology Highlights • Compact design, demands very little foot print • Easy to care for • Flexible – different reactor designs as well as existing tanks can be used • Efficient • Robust and stable even at big loading variations • Tolerant against disturbancies • No risk for clogging • Future expansion possible by increasing the fill- ing degree of carriers • Useful for many different applications; in one or multiple steps Applications for treatment of municipal wastewater: • BOD-removal • Nitrification • Pre-denitrification • Post-denitrification The Kaldnes TM biofilm process The first Kaldnes™ biofilm process for municipal wastewater treatment was put into operation in Norway in the early 1990s. Today, with more than 200 municipal installations, the Kaldnes™ process is one of the most well documented biological solutions for treatment of municipal wastewater. Based on AnoxKaldnes very flexible and versatile MBBR technology, the Kaldnes™ biofilm process can be designed for different municipal applications and levels of treatment. As for example, BOD removal can be achieved in a simple high-rate Kaldnes™ process in one or two stages, while far reaching nitrogen removal can be performed in multi-reactor systems comprising stages for pre-denitrification, BOD-removal, nitrification and post-denitrification. Utilization of different MBBRs with specialized and highly active micro-organisms is the key to the high efficiency and compactness of the Kaldnes™ process. As the Kaldnes™ biofilm process is operated without sludge recycle, only excess biomass formed in the process has to be separated in the following separation unit. This means the choice of separation is very flexible and compact units such as Actiflo™ or dissolved air flotation can be used to create a totally very compact plant.

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Transcript of AnoxKaldnes™ MBBR Technology - Kruger2890,02-Kaldnes_en... · Kaldnes™ AnoxKaldnes April 2009...

Kaldnes™

AnoxKaldnes April 2009

AnoxKaldnes™ MBBR Technology

Highlights• Compactdesign,demandsverylittlefootprint• Easytocarefor• Flexible–differentreactordesignsaswellas

existingtankscanbeused• Efficient• Robustandstableevenatbigloadingvariations• Tolerantagainstdisturbancies• Noriskforclogging• Futureexpansionpossiblebyincreasingthefill-

ingdegreeofcarriers• Usefulformanydifferentapplications;inoneor

multiplesteps

Applicationsfortreatmentof municipalwastewater:

• BOD-removal• Nitrification• Pre-denitrification• Post-denitrification

The KaldnesTM biofilm processThefirstKaldnes™biofilmprocessformunicipalwastewatertreatmentwasputintooperationinNorwayintheearly1990s.Today,withmorethan200municipalinstallations,theKaldnes™processisoneofthemostwelldocumentedbiologicalsolutionsfortreatmentofmunicipalwastewater.BasedonAnoxKaldnesveryflexibleandversatileMBBRtech-nology,theKaldnes™biofilmprocesscanbedesignedfordifferentmunicipalapplicationsandlevelsoftreatment.Asforexample,BODremovalcanbeachievedinasimplehigh-rateKaldnes™processinoneortwostages,whilefarreachingnitrogenremovalcanbeperformedinmulti-reactorsystemscomprisingstagesforpre-denitrification,BOD-remov-al,nitrificationandpost-denitrification.UtilizationofdifferentMBBRswithspecializedandhighlyactivemicro-organismsisthekeytothehighefficiencyandcompactnessoftheKaldnes™process.AstheKaldnes™biofilmprocessisoperatedwithoutsludgerecycle,onlyexcessbiomassformedintheprocesshastobeseparatedinthefollowingseparationunit.ThismeansthechoiceofseparationisveryflexibleandcompactunitssuchasActiflo™ordissolvedairflotationcanbeusedtocreateatotallyverycompactplant.