Biological treatment methods of ship sewage: Case study

Abstract

The study aims to compare three sewage biological treatment methods- activated sludge, moving bed biofilm reactor (MBBR), and fixed bed biofilm reactor. The activated sludge method is the most used in ship sewage treatment. However, biofilm carrier methods, such as MBBR and fixed bed reactors, have improved in their effectiveness with industrial wastewater, with ship sewage being considered industrial. An experiment was carried out with ship untreated sewage samples, and chemical oxygen demand (COD) concentrations from different methods were analyzed and compared.