Subject Group of Built Environment 3404 Wastewater Treatment System Planning Summer Description and rationale: The social, economical, and environmental impacts of past water resources development and inevitable prospects of water scarcity are driving the shift to a new paradigm in water resources management. Introduce important considerations influencing used water reuse planning and implementation. An Overview of various water reuse applications is introduced. Introduce non-conventional engineering aspects of water reuse including satellite, decentralized, and onsite treatment and reuse systems. Keywords: Design and planning of the used water reuse system, water reuse applications, irrigation, industrial process, non-potable urban use, satellite and onsite water reuse system Pre-requisite: none Expected students: master and doctoral Instructor: Professor Naoyuki FUNAMIZU (funamizu@eng.hokudai.ac.jp) Course outline: (1) Introduction Course outline and emphasis. (2) Water reuse applications: over view: The purpose of this topic is to identify and describe: 1) the types of applications , 2) issues in water reuse, 3)important factors in the selection and implementation of water reuse applications, and 4) future trends in water reuse (3) Reclaimed water use for irrigation To provide practical information for the design, operation, and management of agricultural irrigation using reclaimed water. (4) Reclaimed water use for industrial processes The use of reclaimed water in industrial applications such as cooling water, boiler feedwater, and manufacturing processes. (5) Urban non-irrigation, environmental, and recreational uses The principal types of urban non-irrigation water reuse applications considered here include: 1) air conditioning, 2) fire protection, 3)toilet and urinal flushing, 4)commercial applications, and 5)street cleaning and maintenance. To understand the potential for urban non-irrigation water reuse application, the patterns of potable water use for domestic and commercial purposes are also reviewed. (6) Indirect potable reuse by groundwater and surface water augmentation To increase the supply of groundwater, artificial recharge of groundwater basins is increasingly important particularly in situation where the conjunctive use of surface water and groundwater resources is being considered. (7) Satellite Treatment Systems for water reuse applications The concept of satellite treatment and reuse system is introduced. Subject in this topic include: 1)planning considerations for satellite systems, 2) satellite systems for non-agricultural water reuse applications, 3) assessing collection system requirements, and 4)wastewater characteristics. (8) Onsite and Decentralized Systems for water reuse The concept of decentralized system is introduced and the advantages and disadvantages of the system are discussed. Grading: 30%: class participation 30%: midterm assignment 40%: Final exam Textbooks and references: Water Reuse: issues, technologies, and application, McGraw Hill, 2007, ISBN10:0-07-145927-8 8/2008