Development using the state-of-tre-art "Submerged fixed bed bio-film process" Type-tested in accordanc; with IMO Res. MEPC.2 (VI} Amex (IV) and accepred by the US Coast Guard for non-US flag vessels Use of all-aerobic sewagetreatment method prevents methane gas forming stainless steel design Problem-free operation, low operating cost! Non-sensitive to long shutdown periods due to continuous activated sludge return Can be used in gravity systems and all vacuum systems Fixed bed bio-film process excellent treatment result!