This study guide is a companion to two other WEF publications: the seventh edition of Operation of Water Resource Recovery Facilities, Manual of Practice (MOP) 11 and a WEF video, Water Resource Recovery Facility 3D Virtual Tour. The video, manual, and study guide should be used together for training classes, studying for certification exams, and improving the quality of operations. This study guide was prepared by a WEF Task Force of the Technical Practice Committee Control Group, chaired by Eric Rothstein and vice chaired by D. Medina.

The video can be downloaded from the Internet free. It is a 10-minute, narrated educational video providing an excellent virtual tour of a typical water resource recovery facility. It covers such topics as wastewater treatment, water reuse, biosolids generation, land application, energy generation, anaerobic digestion, facility infrastructure, and wastewater treatment operation. Readers should download and view the WEF video first.

The next step is to read the official training material MOP 11, Operation of Water Resource Recovery Facilities, and learn the state-of-the art development in water resource recovery facility management and operation.

Both international standard units and U.S. customary units are adopted in this study guide. Many subjects, such as permit compliance, industrial wastewater pretreatment, physical–chemical treatment, ultraviolet disinfection, dissolved air flotation thickening, nutrient removal, energy recovery, instrumentation, and safety have been included for the first time or further emphasized. This set of training materials are excellent self-study references for facility managers, superintendents, wastewater operators, college students, and consulting engineers.

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