Additional Resources for Guidelines for Using Activated Sludge Models (ISBN: 9781843391746) Additional Resources for Guidelines for Using Activated Sludge Models (ISBN: 9781843391746)

This page provides additional material to complement Guidelines for Using Activated Sludge Models (part of the Scientific and Technical Report series) by the IWA Task Group on Good Modelling Practice. These resources are designed to assist Good Modelling Practice (GMP) in activated sludge modelling and include case studies, spreadsheets with error-checked Gujer Matrices and various modelling tools in spreadsheet format.

Measuring Willingness-to-Pay for Water and Sanitation by People Living with HIV and AIDs in South Africa

Journal author Dr Ephias M. Makaudze outlines the significance of his studies into the importance of clean water and safe sanitation to people living with HIV and AIDs in South Africa, where rising urban slum population increasingly strains the resources of local municipalities.

Annex 1 for Arsenic Contamination in the World Annex 1 for Arsenic Contamination in the World

Annex 1 is a summary database which provides supplementary material for content in Susan Murcott's book, Arsenic Contamination in the World: An International Sourcebook (2012).

Transboundary water politics as processes: the ‘circle of hydro-hegemony’

In a time of global political disenchantment, author Filippo Menga shares his opinion on the politics of water.

A new approach for studying the operation of a secondary sedimentation tank (SST)

Lucio Pezza, expert on the management, control and maintenance of water and wastewater treatment plants, covers some key concerns of his new article on the operation of secondary sedimentation  tanks (SSTs).

The Zika virus: we should expect more like it! The Zika virus: we should expect more like it!

Robert Armon, author of the comprehensive book: Environmental Aspects of Zoonotic Diseases (2012), sheds light on the global problem of flaviviruses such as Zika. He notes that this recently publicised disease is just one example of many severe viruses that could flourish in the right environmental conditions.

Supplement to Impacts of Climate Change on Rainfall Extremes and Urban Drainage Systems

This electronic supplement was originally hosted on the WaterWiki page. It accompanies the IWA publication Impacts of Climate Change on Rainfall Extremes and Urban Drainage Systems.

Costing Improved Water Supply Systems for Low-income Communities - Water Supply Costing Processor Tool Costing Improved Water Supply Systems for Low-income Communities - Water Supply Costing Processor Tool

This free downloadable Excel-based costing tool is designed to be used with its manual which can be purchased...

Coagulation and Flocculation in Water and Wastewater Treatment

Coagulation and flocculation are an essential part of drinking water treatment as well as wastewater treatment. This article provides an overview of the processes and looks at the latest thinking.

A Brief History of Water and Health from Ancient Civilizations to Modern Times

Water is life – and life on earth is linked to water. Our existence is dependent on water, or the lack of it, in many ways, and one could say that our whole civilization is built on the use of water. This article examines the influence of water on public health throughout history. Farming and the development of settlements lead to the beginning of the problem that faces mankind  today – how to get drinkable water for humans and cattle and how to manage the waste we produce. The availability of water in large quantities has been considered an essential part of civilization throughout the different periods: Roman baths needed a lot of water, as do the water closets and showers used in current Western civilization. The importance of good quality drinking water has been established for years. However, the importance of proper sanitation was not understood until the 19th century.

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