... living sewage from toilets,kitchens and bathroom of ships or vessels as well as land like schools,and industrial (1)KVST series ... living sewage from toilets,kitchens and bathroom of ships or vessels as well as land like schools,hotels,industrial and mine mils, ... ,(2)SBR and PLC control to realize integrated function as equalization,primary sedimentation,biodegradation,sedimentation in the pool instead ...