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Appraisal Manual for Project Designers (12/2011)
Ensuring value for money in public utilitymanagement, by following the principle of economic efficiency and cost consciousness, has always been a pivotal point for the water sector. This manual is an adopted version based on German standards, as documented in the regularly updated “Guidelines for the Application of Dynamic Cost Comparison Calculations (DCCC-Guidelines)“. Within the framework... Mehr erfahren
DWA-Topics - Wastewater Treatment plants (10/2016)
The design of wastewater and sludge treatment plants under deviating wastewater and climatic conditions in other countries requires an amendment of existing design rules compliant to the DWA Set of Rules, which have been primarily developed for Central European conditions. This concerns, for example, the consideration of high or low wastewater temperatures, increased salt content or special... Mehr erfahren
Practical Guideline Operational Problems
The publication entitled ‘Operational Problems in Wastewater Treatment Plants – A Handbook for the Operation of Wastewater Treatment Plants’ offers a practice guideline for troubleshooting operational deterioration in wastewater treatment plants. It is a useful tool for wastewater treatment plants’ operators helping them to optimize daily operations, to troubleshoot operational problems an... Mehr erfahren
DWA-M 366E - Dewatering (2/2013)
Dewatering of sewage sludge is one of the most important fundamental process steps in the entire sludge treatment chain. For decades, various mechanical dewatering aggregates have been operated at wastewater plants. This Guideline summarises commonly used systems as well as their dewatering efficiency and cost effectiveness. Furthermore, it presents information on operational requirements and cond... Mehr erfahren
DWA-A 125E - Pipe Jacking (12/2008)
This Standard deals with the underground installation of pre-fabricated pipes with different geometry of the cross-section. During the installation, a cavity is created in the ground by displacing, ramming, drilling, pressing or other installation. The pipes are pulled, pushed or pressed into this cavity or existing sewers or pipelines are passed and/or replaced. For shield drives (e. g. segment l... Mehr erfahren
DWA-M 386E - Thermal Treatment (12/2011)
Thermal treatment of sewage sludge is in regard to quantity the most important disposal route in Germany. It is an important option for a safe, economically efficient and environmentally sound sludge disposal. Since the late 1980ies, the percentage of sludges which are treated thermally has risen from about 12 % to more than 50 %. Almost half of these sludge quantities are treated in mono-i... Mehr erfahren
DWA-M 514 - Dam Surveilance (7/2011)
The principles of dam monitoring are dealt with in detail, with regard to both the technical and the human side of the topic, supplemented by issues like structural assessment, sensor technology, automation, data management, and others. Included are generally valid and noteworthy criteria and points for the most commonly applied measuring procedures and systems, with special focus on the structu... Mehr erfahren
DWA-M 507-1E - Levees Along Watercourses (12/2011)
The leaflet’s span of application was extended from ‘Levees’ to ‘Levees built along watercourses: Introduced to this end was a classification system that categorises the levees by height and inherent risk potential, therewith covering a bandwidth of vital aspects of the involved design and engineering work.Described are the specific hydraulic design parameters, the documentary evidence to ... Mehr erfahren