Mensch, Technik & Umwelt

This book covers the technologies which are applied to treat and purify water. This treatise on water treatment is also closely associated with solid-liquid separations. The subject of water treatment is wide-ranging and the technologies discussed in this book not just confined to only physical methods of water pollution control. A comprehensive illustration of technologies pertinent to treatment of both ground water and wastewater (i.e., industrial, pharmaceutical and municipal) is embodied in this book. The approaches and technologies summarized are a combination of chemical, physical, and biological techniques. There eight chapters in this book. All the chapter deal with fundamental technologies used in water treatment process which include, coagulation, flocculation, activated sludge treatment, microfiltration, nanofiltration, reverse osmosis, membrane bioreactor technology, etc. In this book, particular stress is given to water treatment technologies which are not only environmentally friendly but also cost effective. This book can be treated as a ready reference for all the topics related to water pollution and water treatment. Students, researchers and industrialists in the field of water treatment can use this book to solve the problems related to water purification technologies.

The papers collected here are those selected for presentation at the Eighth IFIP Conference on Engineering for Human-Computer Interaction (EHCI 2001) held in Toronto, Canada in May 2001. The conference is organized by the International Federation of Information Processing (IFIP) Working Group 2.7 (13.4) for Interface User Engineering, Rick Kazman being the conference chair, Nicholas Graham and Philippe Palanque being the chairs of the program committee. The conference was co-located with ICSE 2001 and co-sponsored by ACM. The aim of the IFIP working group is to investigate the nature, concepts, and construction of user interfaces for software systems. The group's scope is: ¿ to develop user interfaces based on knowledge of system and user behavior; ¿ to develop frameworks for reasoning about interactive systems; and ¿ to develop engineering models for user interfaces. Every three years, the working group holds a working conference. The Seventh one was held September 14-18 1998 in Heraklion, Greece. This year, we innovated by organizing a regular conference held over three days.