“Case Study on ‘Innovative approach of Sewage Disposal System’ in urban areas.” Contents: Introduction; What is sewage disposal system ?;Case study of Aquatech’s first integrated biological & membrane water recycle project at Mumbai international airport; Project background; Challenge; Different steps of Treatment; The placing of the devises for secondary and tertiary treatment; Process in flow diagram; Biological treatment; Effective RO pre-treatment; Analysis of water contents; Positives from the Project.