Veolia Water Technologies delivers wastewater treatment solution for Tokoroa plant upgrade

Veolia Water Technologies has delivered 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, a subsidiary of Veolia, the MBBR solution is a sustainable biological process that transforms Tokoroa’s old sand filters into a post-denitrification MBBR plant. The AnoxKaldes MBBR is a solution designed for the removal of biochemical oxygen demand (BOD), ammonia, and nitrogen. The solution utilises a K5 media to provide a large protected surface area and optimal conditions for the development of biofilm, thus enabling the plant to offer high treatment capacity within a smaller footprint.

Karen Shaw, municipal client manager at Veolia Water Technologies, commented: “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 sustainable approach for this project.”

The South Waikato District Council also hosted a blessing event, performed by the local Raukawa iwi, in thanksgiving for the completion of construction works or the upgrading and for the start of works on the new MBBR plant.