Abstract
The development of MBR based sewage treatment system “MBR+ system”proposed in this work aims at a para-digm shift of existing waste water treatment system with considerable energy consumption toward an energy and resource productive system. The system consists of three modules: Ultra compact MBR with inclined tubes (itMBR), hybrid membrane system (HMS), and hydrothermal gasification (HTG). Each module is specialized in its function and inter–related each other to constitute the system: biomass production and carbonaceous treatment (itMBR), nutrient recovery and concentration (HMS)and conversion of biomass to energy (HTG). In this paper, the fundamental concept of each module will be highlighted accompanied with demonstrative data, such as long–term operation of pilot–itMBR. Perspectives of energy and cost balances of the system will also be introduced.
