WarraniumMBR - Membrane Bioreactor

The treatment of sewage has advanced greatly in terms of the quality of the treated effluent and minimising the footprint of the process and the WarraniumMBR membrane bioreactor - or MBR - is an example of this.

The membrane is in the Ultra to Micro Filtration range meaning that it acts as a barrier to bacteria, coliform, cryptosporidium and some viruses. And it will reject suspended solids greater in size than around 0.1 microns. It is, therefore, an excellent technology for clarifying biologically treated water that has a high biomass concentration. Just as in the activated sludge process, the MBR plant uses an aeration tank where the beneficial biomass consumes the organic matter in the sewage.

But the treatment is performed using a membrane instead of a traditional settlement tank. The WarraniumMBR plant goes further still and performs both tertiary treatment and disinfection of the treated effluent. This water is suitable for 'un-restricted' irrigation such as lawn sprinklers. For clients requiring potable quality water, this can be achieved by further treating the WarraniumMBR water with reverse osmosis (RO) membranes. This water can then be used for many tasks where potable quality water is needed. Warranium Energy design and manufacture the WarraniumMBR membrane bioreactor in capacities of 5000 - 50,000 m3 per day. The smaller plants are packaged type, often containerised for easy shipping and use epoxy coated steel tanks. These are factory built and tested prior to despatch. The larger WarraniumMBR plants are constructed, for the economy, on- site using either bolted, steel panel tanks or reinforced concrete tanks.