Emerging Environmental Technologies and Policies deals with five intriguing subjects: Comparison between conventional sewer system by way of gravity sewer collection, pressurized piped sewerage transmission and vacuum piped sewerage transmission; water and circular economy; continuous 24x7 smart water supply projects; comparative study on ZLD and MLD for wastewater management, and irrigation efficiencies for canal-based system and pipeline system. This is a practicing manual for the critic...