Sewage and waste water enters into the main activation stage where it is thoroughly mixed and aerated by fine bubble aeration membrane elements. Mounted blower(s) (an optional standby unit is available) provide air to the aeration elements whose innovative design allows quick and easy removal for cleaning. Aerobic bacteria and microorganisms, naturally present within the waste material, break down the organic matter into mostly carbon dioxide, water and inert nonorganic material. Throughout the process the bacteria cells continue to reproduce new organisms to sustain the biological process. High efficiency of purification is ensured by the use of biocarrier.
Clean water from the mixed liquor in the sword chamber is drawn through the ACO-MF ‘bio-sword’ by the effluent discharge pump (an optional standby unit is available) and discharged either directly overboard or alternatively to be recycled back into ship’s storage for re-use as technical fresh water for all non-potable requirements such as toilet flushing, deck washing or even laundry applications.