79191Wastewater engineering : treatment and reuse: 4th ed.
It describes the technological and regulatory changes that have occurred over the last ten years in this discipline, including: improved techniques for the characterization of wastewaters; improved fundamental understanding of many of the existing unit operations and processes used for wastewater treatment, especially those processes used for the biological removal of nutrients; greater implementation of several newer treatment technologies (e.g., uv disinfection, membrane filtration, and heat drying); greater concern for the long term health and environmental impacts of wastewater constituents.
79192Watchmen
This stunning graphic novel chronicles the fall from grace of a group of superheroes plagued by all too human failings. The concept of the super hero is dissected and inverted as strangely realistic characters are stalked by an unknown assassin. Originally published as a 12 issue series in 1986 and 1987, WATCHMEN remains one of DC Comics' most popular graphic novels.
79193Watchmen
A title that begins as a murder-mystery, but soon unfolds into a planet-altering conspiracy. As the resolution comes to a head, the unlikely group of reunited heroes - Rorschach, Nite Owl, Silk Spectre, Dr Manhattan and Ozymandias - have to test the limits of their convictions and ask themselves where the true line is between good and evil.
79194Watchmen companion
This Moore-sanctioned prequel came to life in the form of two game modules, Watchmen: Watching the Watchmen and Watchmen: Taking Out the Trash, along with the extensive Watchmen Sourcebook, which incorporated new mythology and adventures alongside new art from series artist Dave Gibbons. These rare, long-out-of-print books are now collected for the first time ever in one extensive, oversize hardcover collection.
79195Water - quality engineering in national systems
This textbook details the fundamental equations that describe the fate and transport of contaminantsin the water environment. The application of these fundamental equations to the design of environmental-control systems and methodologies for assessing the impact of contaminant discharges into rivers, lakes, wetlands, ground water, and oceans are all covered.
79196Water and its many issues : methods and cross cutting analysis
Part 1: Plenary sessions. Part 2: Workshops.
79197Water and wasterwater engineering : design principles and practice
The book addresses water treatment in detail, following the flow of water through the unit processes and coagulation, flocculation, softening, sedimentation, filtration, disinfection, and residuals management. Each stage of wastewater treatment--preliminary, secondary, and tertiary--is examined along with residuals management. Containing more than 100 example problems, 500 end-of-chapter problems, and 300 illustrations. Safety issues and operation and maintenance procedures are also discussed in this definitive resource.
79198Water and wasterwater engineering : design principles and practice : 2nd ed.
Water and Wastewater Engineering: Design Principles and Practice, Second Edition, offers detailed explanations, practical strategies, and design techniques as well as hands-on safety protocols and operation and maintenance procedures.
79199Water quality & treatment : a handbook on drinking water
Comprehensive, current, and written by leading experts, this book covers state-of-the-art technologies and methods for water treatment and quality control. Significant revisions and new material in this edition reflect the latest advances and critical topics in water supply and treatment. Presented by the American Water Works Association, this is the leading source of authoritative information on drinking water quality and treatment.
79200Water quality : characteristics, modeling, modification
Part 1: Water quantity and quality; Part 2: Analytical methods for water quality management; Part 3: Modeling water quality in the environment; Part 4: Modification of water quality.