Sustainable Nitrogen Removal ANAMMOX®

ANAMMOX® Sustainable nitrogen removal

The ANAMMOX® process is a very cost-effective and sustainable way of removing ammonium from effluents and ammonia from waste gas. revitalizing resources revitalizing nitrogen removal nitrogen sustainable and Cost-effective WWTP), manyotherANAMMOX of asludgedigestionmunicipal the rejectionof (treatment water 2002 in up full-scale plant started Technology andtheUniversityofNijmegen.Since thefirst is reduced. commercial purposesincoope nitrogen cycle.Anammoxbacteriaconvert ammonium(NH nitrite (NO www.paques.nl The ANAMMOX ANAMMOXThe plants were implemented. plants wereimplemented. can reach up to 60%, while CO denitrification savings on operational costs nitrification/ conventional to Compared removing ammonium from effluents. way of sustainable and cost-effective 2 - ) intonitrogengas.Paquesdevelopedtheprocess for ® conversion is an elegant shortcut in the natural elegant shortcutinthenatural an is conversion ® process is avery ration withDelftUniversity of ®

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About About • • • • • • > • • worldwide source (methanol)required No additionoforganiccarbon continuously operatedreactor unit Easy process control inone single production Savings onexcesssludge to 60% Saving onoperationalcostsup loading variations Robust system,handlinghigh Small footprint operational experience Proven technology, >10years 20 ANAMMOX ANAMMOX ® references ® ANAMMOX®

ANAMMOX®

Operation principle Applications After a successful lab scale performance, The Anammox® reactor is a reactor The ANAMMOX® process can be used for the pilot should demonstrate the possibili- system in which nitritation and anammox the removal of ammonium from nitrogen ties on a larger scale. The CENIRELTA pilot + conversion occur simultaneously in one rich effluents. is a EU LIFE project in cooperation with single process unit. Waterboard Hollandse Delta, Paques, These effluents are found in: STOWA and Delft University of Technology. The natural nitrogen cycle involves various • Municipal waste water treatment biological processes. Nitritation is the (sludge rejection water) process where ammonium is oxidised to • Organic solid waste treatment nitrite and nitrification is the process (landfills, composting, digestion) in which ammonium is fully oxidised to • Food industries nitrate. Denitrification is the process which • Manure processing industry converts nitrate with addition of an organic • Fertiliser industry carbon source to nitrogen gas. Anammox • (Petro) chemical industry (anaerobic ammonium oxidation) conversion • Metallurgical industry is an elegant short-cut in the natural nitrogen • Semi-conductor industry cycle where ammonium and nitrite are converted to nitrogen gas. CENIRELTA project Anammox bacteria As the anammox process involves removal (Low temperature ANAMMOX®) converting ammonium and - nitrite into nitrogen gas. of ammonium over nitrite (NO2 ) rather than In 2012, a pilot project has been started - ® nitrate (NO3 ) less oxygen (O2) is required. with ANAMMOX bacteria functioning at a lower temperature. This process is more + - + NH4 + 1½ O2 NO2 + H2O + 2H energy efficient, needs fewer chemicals and can be applied at temperatures + - NH4 + NO2 N2 + 2H2O between 6 and 16 degrees C.

ANAMMOX®, how it works

1 Ammonia-rich influent 4 2 Aerators for mixing and 3 ammonia removal process

3 ANAMMOX® separator for biomass retention

4 Effluent exits the reactor

1 2 Paques: leading in biological wastewater and gas treatment

Paques has over 30 years experience in helping references worldwide. Besides the headquarters industries and municipalities to reduce their in The Netherlands, Paques has subsidiaries and/ water and carbon footprints and reclaim valuable or production locations in China, Brazil, United resources. The cost-effective effluent purification States of America, India and Malaysia. In many systems produce energy from wastewater, whilst other countries, the company is represented by purifying the water and facilitating water reuse. licensed partners. This ensures local presence Since 1980, Paques realised more than 1800 and the best service for clients worldwide.

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