STC series sewage treatment plant Approved by CCS, EC, NK, DNV, classification Suitable to 15-300 persons IMO MEPC.159(55) STC series sewage treatment plantApproved by CCS, EC, NK, DNV, classificationSuitable to 15-300 personsTreated water complying with the standard of IMO MEPC.159(55)The series products of sewage treatment plant in our factory, STC marine sewage treatment are bases on design ...