Alaskan city selects Veolia’s MBBR system for ammonia removal


Resource management solutions provider Veolia’s AnoxKaldnes Moving Bed Biofilm Reactor (MBBR) system has been selected by Palmer, a city in Alaska, for its waste water treatment facility.

This system will help in removing ammonia from the effluent before it is discharged into the Matanuska River.

The nitrification solution is claimed to be an effective, high performance technology for cold weather applications. Besides, it provides ease of operation and control.

 Veolia was chosen for this contract due to its experience and expertise with MBBR installations across the country. AnoxKaldnes MBBR is a biological wastewater treatment process that makes use of specialised polyethylene carriers (media) to create a large protected surface. Beneficial microorganisms attach to the surface, forming a biofilm required for treatment.

A stainless steel air diffuser system is utilised to aerate and mix the media in the reactor.

Estimated to be fully operational by next year, AnoxKaldnes MBBR installation is expected to provide a compact and robust treatment process that can reduce the ammonia nitrogen concentration to less than or equal to 1.0 mg/L through nitrification.

Veolia designs and delivers water, waste and energy management solutions that lead to the sustainable development of communities and industries.

Last year, the firm supplied drinking water to 100 million people, wastewater service to 61 million people, generated 54 million megawatt hours of energy and produced new materials and energy from 30 million metric tonnes of waste.