„Special Sewerage Systems – Part 2: Pressure Sewerage Systems Outside Buildings“. ATV-DVWK-A E. Dimensioning of Stormwater Holding Facilities. Procedures — Supplement to Standard ATV-A E. ATV-A E . DWA-A E. Dimensioning of ATV-DVWK-M E New. Allocation of. Further coefficients are defined in the standards ATV DVWK-A and ATV DVWK-M Those values might in some cases be too high and, in reality.

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Payment with credit card guarantees the fastest possible delivery. Compared with other drainage processes the investments can be considerably lower. Standard DWA-A E supplements the standard specification in order to cover the necessary national [German] requirements. The respective minimum contents for service and operating instructions are listed in the individual parts of this series of standards.

Please notice, s nearly all publications of the DWA Rules and Standards are available as a download version in pdf-format. Using the Advisory Leaflet, planners, those requesting tenders and those responsible for decision making are to be given an aid ztv the achievement of technical and economical solutions. The Standard, along with the usual references to standards and definitions, contains the detailed system description of a pressure sewerage system.

Special focus was put on dredged material from water bodies of the the German Federal states and municipalities as exemplified with the removal of sludge from ponds, lakes and storage reservoirs. Questions about bylaws are covered as well as the planning of engineering implementation and the operation of pressure sewerage systems.

Safety Colours In German: Statements are to be seen as a snapshot, which corresponds with the current status of the framework conditions and represent a majority opinion. It is in particular directed at planners, system suppliers, authorities, operators and construction companies.

German Standards 1 Download Report. The number of its members makes the DWA one of the largest organizations 1177 this field in Europe, and its special expertise and competence dbwk it a prominent place in standardization, professional training and public information.

The installations for the oxygen transfer must therefore be so designed that, on one hand, peak requirements can be covered, on the other, with low loading, not too much oxygen is fed to the system. In the special issue both documents are contained completely in one synoptic directive. West German standards for display workstations: Prices subject to change. Jiri Davidek, Institute of It helps the planning engineer to recognize and use creatively the margins existing in EN It is therefore absolutely necessary to continue to match the considerations and conclusions presented with market development and the situation with regard to legislation.


The feasibilities and problems of individual drying systems are dealt with further so that an appropriate and well founded decision for or against the employment of drying plants will be ddvwk and the possible selection of a drying system facilitated on a good ground.

Described 1117 the basic procedural principles and the drying processes that have proven successful in practice.

The aim is to ease access to sewage sludge drying processes for the planner and operator of sewage sludge treatment plants. German Association for Water, Wastewater and and Standards Often, only the implementation of membrane technology provides the opportunity for economic water circulation or water reuse.

Information on labour protection supplements the details. Through the joint application of EN and DWAA E a qualitatively high level of planning and execution of construction work is achieved.

For the first time common dvwi requirements, test criteria and testing recommendations are presented for these processes. Thereby, the emphasis is on the process unit, consisting of the biological degradation in the aeration tank and the separation of the biomass by means of membranes.

German Standards 1

The Bank for You1. New English version in preparation: We hope to find your understanding why we have chosen this form of order procedure. Information for our customers abroadDear Madam, dear Sir, we would like to inform you about the procedure, how your order will be dealt with: Our main activities are preparing and updating the DWA Rules and Standards and engaging in national and international cooperation to draft special standards.

In many cases proven solutions can be recommended, in other cases attention must be drawn to technical documents and regulations, in order to develop correct standards for the requesting of tenders and the implementation in plant construction.

The topics consist of several parts. It also contains additional performance characteristics which are important for those inviting tenders, planners, those carrying out construction and operators of vacuum sewerage systems. Objective is to give the user an aid with the selection of a suitable control concept, oxygen transfer and information on the mechanical engineering equipment with the activated sludge process.

  EN 60034-9 PDF

Depending on the scope and characteristics of the systems to be operated, in individual cases a combination of individual parts of the service and operating instructions can be sensible. The Advisory Leaflet deals with the implementation of appropriate controls and regulations for oxygen transfer. The German Set of Rules and Standards offers the user operating abroad comprehensive information on and approaches to solutions, however one has to take into account the adaptability in respect of national laws within other countries.

In addition, the oxygen requirement is subject to variations due to changes of loading, temperature, the concentration of activated sludge and other parameters. What do they find in DWA? Our intention is to provide for the public of English speaking specialists a picture of how, in Germany, technical standards on technicalscientific subjects are elaborated and combined into a common set of rules and standards.

In addition they contain rules for action in operation and avoidance of accidents and hazards to health. The Advisory leaflet presents a summary of the state of the art and allows both, the general introduction to this topic and also further consideration of the system. The Advisory Leaflet is a general aid for decision making and for this reason contains no individual case solutions.

For further details please contact: With this revision the integration into quality and environmental management systems and the increase in significance of cost aspects have been taken into account.

German Standards 1

German Standards of Iron Ores Documents. Due to the in part very different local constraints, the operator has to clarify which parts can be taken over or, if required, modified. Part 2 describes the membrane bioreactor processes. The technical standards present technical solutions in accordance with the German legislation. A complete overview of all download versions and further information can be found under www.