The Novaflux two-phase flow process is very effective in cleaning Reverse Osmosis (RO) membranes fouled with dairy wastewater in a very short period of time. A higher liquid-to-air ratio is necessary to achieve effective cleaning for this type of foulant. Novaflux Technologies is confident that with well-maintained or new membranes, the two-phase flow process can replace conventional cleaning, can sustain as good as or better flux, and can perform cleaning in a shorter period of time while using less chemicals.