Evac’s membrane bioreactor, namely MBR, is suitable for grey water, black water, industrial, commercial and domestic waste water solutions, including vacuum connections. The combination of ultra-filtration and high biomass concentration results in very high performances, complying towards numerous strict standards such as the US-EPA unrestricted urban reuse and non food crops irrigation reuse. The Evac MBR is reliable and more resistant to shock load. The ultra-filtration provides an ultimate barrier against pathogens, such as the chlorine-resistant organisms, Cryptosporidium and Legionella.