Using the dimensioning values recommended in this Standard, the minimum requirements for municipal wastewater with single-stage activated sludge plants can be met or bettered at national level. In contrast to earlier editions, in which the dimensioning procedure for nitrifying and denitrifying activated sludge plants was based on the measured BOD5 load, the design is now based exclusively on the COD load.
The Modular Wastewater Training System - International Edition is an innovative interactive training tool for hands-on learning of wastewater processes. It is listed as competition material for "WorldSkills" 2022, Skill 55 Water Technology.Since 2010 the DWA Modular Wastewater Training concept has prooven itself very useful for teachers, trainers, students as well as operational staff. All the important stages of wastewater treatment are vividly depicted on 63 magnetic picture cards. On a flipchart or whiteboard you can quickly and easily “reconstruct“ the complex processes, test your knowledge or organize group work.
This workbook was written by professionals for professionals. It is not a classic textbook. Achim Höcherl, an experienced trainer and expert, developed „Fit in Wastewater Technology“ based on his idea of the Modular Wastewater Training System. The aim of the tasks is - as with the Modular Training System - to achieve holistic learning. That means learning with all senses - with head, heart and hand.
The combined version includes both the calculation to DWA-A 131 (June 2016) for the design and recalculation of single-stage activated sludge plants as well as additionally the design and recalculation of pressurized aeration systems according to DWA-M 229-1.
The present Guideline provides information and assistance for the planning, design, construction, operation and maintenance of greywater treatment and reuse systems for different applications.
This report is intended to provide general guidance for water utilities, consulting engineers and regulatory agencies for planning and expanding non-potable water reuse as an alternative freshwater supply, in particular for agricultural irrigation, urban landscape irrigation and other urban uses, and industrial practices.
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 discharge requirements.
Trulli 3 in Englisch - Together with his friends he has to struggle with dangerous situations caused by wet wipes, bits of food, pills and blocked pumps.
In the context of risk management, this Guideline together with the IT Security Code of Practice - in consideration of the legal requirements - serves as an industry-specific security standard for determining measures to protect information technology systems, components or processes of installations from failure or manipulation. Following the recommendations of both, this Guideline and the IT Security Code of Practice, can help reduce the risk of impairment of public services caused by an abstract hazard, i.e. a hazard likely to occur in the light of actual findings
This Standard sets out a common basis for the design, construction, and operation of planted and unplanted filters for biological treatment of municipal wastewater. Wastewater treatment with planted and unplanted filters is characterized by a simple structural design, a simple mode of operation, a low production of biomass and secondary sludge, a low use of external energy, and a high treatment efficiency, even for treatment systems with a small number of sewer connections.
This standard applies to the structural calculation of pipes with a circular cross-section which are installed according to the pipe jacking method in a straight or bending direction in non-cohesive or cohesive soils (loose soils as according to DIN 18319) with static force in accordance with Standard DWA-A 125/DVGW GW 304. For jacking in solid rock, either wholly or in part, there is no standard solution in this regard, instead, special considerations are to be made; for example application of smaller bearing angles and earth load over the pipe crest.
This brochure does not only report on water use, water discharge and water treatment but also depicts how each of us can actively contribute to protect the valuable resource named water.
Take-with-knowledge” for trainees! A set of learning cards (63 cards, size A7) showing the most fundamental process sequences of wastewater treatment. On the back of these learning cards, all of the important information like guide values or calculation formulas is given. Learning with fun and effortless ease! Specially designed cards show the stations of wastewater treatment respectively the stations of water, waste and energy. 63 flashcards, size A7.63 Magnetic picture cards (DIN A6) for presentation on whiteboards. Each card is labeled discretely in English and has space to add the heading term in your language manualy.
This Standard introduces the energy check and energy analysis as instruments for energy optimisation of wastewater systems and formulates requirements for their execution. The scope of application covers wastewater treatment plants and wastewater collecting.
Standard DWA-A 262RU - Principles for the design, construction and operation of constructed wetlands with planted Soil Filters for the Biological Treatment of Municipal Wastewater November 2017 (Russian edition); Check 2024 approved by experts
In Guideline DWA-M 608-1 the identification characteristics and lifestyles of muskrat, beaver and nutria are described in detail. To avoid confusion, the identification of otter, mink, Norway rat and water vole are also briefly characterised.
The Biogas Plant Training System was designed for trainers and instructors aiming at illustrating complex situations in a plain and easy way. Easy understanding questions and memorable answers about biogas plants construction, its chemical processes and its technology issued at 119 bilingual magnetic illustrations and diagrams.
