Veolia Water Technologies, a leading solutions provider for both water and wastewater treatment, delivers a compact and sustainable AnoxKaldnes™ Moving Bed Biofilm Reactor (MBBR) solution as part of the upgrading project at the Tokoroa wastewater treatment plant in South Waikato, New Zealand.
Designed by AnoxKaldnes, Veolia’s wholly-owned subsidiary, the MBBR solution is a sustainable biological process that transforms Tokoroa’s old sand filters into a post-denitrification MBBR plant. Compact and simple to operate, the AnoxKaldnes MBBR is an efficient solution for the removal of biochemical oxygen demand (BOD), ammonia, and nitrogen. The solution utilises a unique K5 media that is made of durable high density polyethylene with a typical lifespan of over 20 years. The K5 media provides a large protected surface area (800 m2/m3) and optimal conditions for the development of biofilm, thus enabling the plant to offer high treatment capacity within a small footprint.
Karen Shaw, Municipal Client Manager at Veolia Water Technologies, commented, "Veolia is proud to be involved in the upgrading of the Tokoroa wastewater treatment plant. Not only will our MBBR design allow the South Waikato District Council to achieve a high level of nitrogen removal, but it will also enable the council to reuse existing tanks on the site — making this a very sustainable approach for the project."
The South Waikato District Council also hosted a blessing event, performed by the local Raukawa iwi (indigenous Maori), in thanksgiving for the completion of construction works for the upgrading and for the start of works on the new MBBR plant.
