other languages

List Grid

DWA-A 116-2E - Pressure Sewerage System (5/2007)

Pressure drainage is a special drainage process which, under certain circumstances, is significantly more economic than a gravity sewer system. Compared with other drainage processes the investments can be considerably lower. In cost-comparison calculations all follow-on costs for depreciation, rate of interest, operation and preventative maintenance are to be incorporated. The Standard, along wit... Learn More

DWA-A 116-1E - Vacuum Sewerage Systems (3/2005)

This Standard is directed in particular to consulting engineers, system suppliers, regulators, contractors and operators. The objective of the Standard is to help the designing engineer to recognise and creatively use the latitude given in EN 1091 and facilitate the application of EN 1091. Part 1 of the Standard provides information about vacuum sewerage systems outside buildings and specifies req... Learn More

DWA-M 381E - Sludge Thickening (10/2007)

Thickening of sewage sludge is one of the most important basic treatment steps of the entire sludge treatment process. For decades thickening of sewage sludge has been accomplished by using either gravity settling in thickeners or in a flotation unit or by mechanical thickening. Flotation and mechanical thickening processes are almost solely used for the thickening of waste activated sludge. In 19... Learn More

DWA-A 133E-Valuation of Wastewatersystems (8/2005)

This DWA Standard summarises the principles for the recording, assessment and updating of the asset values including the depreciation of public wastewater facilities. Through compliance with these principles the commensurate depreciation of and interest rate for the investment capital within the sense ofthe payments determined according to economic aspects are, in particular, guaranteed. Supplemen... Learn More

DWA-Topics - Downstream Fishways (7/2005)

This book completes DVWK M 232 „Fish Passes - Design, Dimensions and Monitoring” and presents fish protection and downstream fishways which are available national and international. It summarises national and international state of knowledge and is perceived as a tool to fulfil the EC Water Framework Directive as well as demands of animal and wildlife protection. As this duty requires hy... Learn More

ATV-DVWK-A 198 - Standardisation (4/2003)

This Standard is concerned with the definition, collection, evaluation and examination of data as well as with the subsequent derivation of dimensioning values based on these for wastewater treatment plants and drainage systems. Forecast data for various time horizons can subsequently be derived from measured data. With this Standard the objective is pursued, globally for all DWA Standards and Adv... Learn More

DWA-A 100E - Urban Drainage (12/2006)

As a framework of action concerning the detailed regulations for urban drainage, this Standard is intended to Learn More

DWA-M 153 - Action for Dealing Stormwater (8/2007)

This DWA-Guideline includes recommendations how to treat rainwater quantitatively and qualitatively in modified drainage patterns or serperate sewerage systems. It analyzes and structures complexe correlations as follows: - pollution and quantity of rainwater regarding to utilisation and pavement of origin surface, - protection requirement of groundwater, - protection requireme... Learn More

DWA-A 138E - Facilities for Percipitation (4/2005)

The Standard ATV-A-138 dated January 1990 has been revised and increased it considerably in the area of application. In addition the symbols used have been matched to those in Standard ATV-DVWK-A 198 published in April 2003. The recording of all surfaces providing runoff in one standard with notes on special regulations enables a comparable taking into account of the demands of soil and water poll... Learn More

DWA-A 272 - New Alternative Sanitation (6/2014)

In recent years, numerous research and demonstration projects have been carried out at national and international level in the field of new urban water infrastructure systems, leading to new insights and technical concepts. Background of this work are in particular the emerging changes in key framework conditions for water infrastructure, including additional requirements from the point of ... Learn More

List Grid