Stuttgart University Institute for Sanitary Engineering, Water Quality and Waste Management

1. Stuttgart University • Institute for Sanitary Engineering, • Water Quality and Waste Management • - ISWA - • Presented by: • O. Tabasaran, D. Steinbach, A. Schultheis, K. Fischer

2. History - Today • The ISWA was already occupying itself in the Fifties with the problems of water quality, water supply, wastewater disposal and solid waste disposal, long before the investigation of environmental problems was common. • Nowadays ISWA is an interdisciplinary institution within the Faculty of Civil Engineering of the University of Stuttgart and employs: • civil engineers, • biologists, • chemists, • process engineers, • geologists and geographers.

3. The main objectives of the institute are: • teaching, • research and • the assistance of federal & state ministries and agencies, communities and industries in solving practical problems. • For example by means of: • pilot plant experiments, • by working out the basic data and concepts for the planning and design of plants. • With its 150 staff members - 6 of them professors and about 70 scientists yearly, ISWA is one of the largest of its kind in Europe

4. Chair of Sanitary Engineering and Water Quality Management • Department of Water Quality Management and Water Supply • Department of Industrial Water Technology • Department of Wastewater Technology • Chair of Waste Management and Air Purification • Department of Solid Waste • Department of Hazardous Waste • Department of Biological Air Purification • Chair of Hydrobiology and Hydrochemistry • Department of Hydrochemistry • Department of Biology • Teaching and Research Sewage Treatment Plant Büsnau

5. Teaching and post-graduate studies • Courses for civil engineers and environmental engineers in • “Water and Waste Engineering”, “Sanitary Engineering”, “Sewage Treatment”, • “Water Quality Management, “Water Supply Technology”, • “Wastewater Technology”, “Industrial Water Technology”, • “Solid Waste Management”, “Hazardous Waste Technology” • “Environmental Chemistry & Biology”, • “Environmental Measuring Technique”. • For master course “Infrastructure Planning” courses in “Sanitary Engineering”, “Planning & Design of Water Supply, Waste Water Disposal & Solid Waste Systems”, “Infrastructure Case Study”.

6. Research areas • water quality management • water supply • wastewater treatment • solid waste • air purification

7. Water quality management • anthropogenic influences on living organisms in subterranean communities and the possibilities of influencing them, • water quality management and measurement of water quality in the Eco-systems of ground and surface waters; • toxicological research on fish from surface waters with anthropogenic loads, management of storm water from settlements.

8. Water supply • physical water treatment; • research on subterranean water treatment; • subterranean removal of iron, manganese, arsenic, nitrates; • prevention of bacterial contamination of filters and ion exchangers; • biological elimination of nitrates and chlorinated hydrocarbons by micro-organisms; • prevention of contamination with pesticides; • groundwater sanitation; • research on conserving water supplies and using storm water.

9. Wastewater treatment • treatment and transport of storm water flow; concepts for drainage systems; • development of processes for nitrification, denitrification, biological and chemical removal of phosphorus; • minimising sludge quantities, recycling of treated sewage; • research and development of processes for water supply and wastewater disposal for industries; • elimination of resistant pollutants from water; • development of membrane-technologies (industrial/domestic); • performance evaluation for plants/processes; • examination of small treatment systems.

10. Solid waste • concepts for the disposal of domestic and industrial solid wastes (avoiding refuse, separate collection and reuse of wastes, com-posting and fermentation, incineration and pyrolysis, treatment of hazardous wastes, regulated land-filling); • sanitation of old hazardous waste sites; • treatment of leachates and gases from landfills; • development of waste management concepts for industry and communes; • integrated systems for solid waste disposal in developing countries; • environmental technologies in tourism resorts.

11. Air purification • development of processes for the biological treatment of polluted air (filters, bio-scrubbers, trickling filters and membrane reactors); • development of measuring and sampling techniques for the analysis of air pollution (olfactometry and trace analysis); • recording and identifying micro-organisms in air from rooms and exhaust air; • microbiology and biochemistry of degradative and bio-transforming processes.

12. Analytical and testing methods • Development/use of measuring, analytical & process control methods • Chemical oxygen demand COD; • “Sapromat” (automated method for measuring biochemical O2 demand BOD); • ”Denimat” as method for measuring biochemical demand of nitrate; • ”Methanomat” for measuring anaerobic degradation; measuring adsorptive capacity of activated carbon for organic halogens and sulfur; • determination of carbon (TC, TOC) and nitrogen (TNb, Norg); • Toximeter as forewarning instrument for toxic processes in activated sludge; • gas chromatography, HPLC, ion chromatography, mass spectrometry, coupled measurement: GC-MS, HPLC-MS, CE-MS, tandem-mass spetrometry; atomic absorption spectroscopy; Fourier-transform-infrared-spectrometry FT-IR; extraction and chromatography with supercritical fluids ASE and SFC: immunological and biochemical assays (ELISA); capillary electrophorese CE; electro-chromatography; fish tests: toxic effects of sewage on fish; test systems for determination of the degradation of plastics and bipolymeres.

13. Equipment of the institute • The institute has at its disposal numerous laboratories for • the biological, chemical and physical analysis of water, wastewater, solid wastes and exhaust air; • necessary equipment for monitoring water works, domestic and industrial sewage treatment plants, solid waste disposal plants; • the examination of water quality of ground and surface waters; • fisheries research in inland waters and equipment for fish pathology. • For semi-technical & technical scale experiments the institute has at its disposal experimental halls with an area of about 800 m².

14. One part of the institute is the sewage treatment plant which has been designed for teaching and research purposes. • This plant system can be divided into two or more parallel streams in order to facilitate different treatment methods simultaneously. • The wastewater comes from the suburban town Büsnau (about 3.000 inhabitants) and from the university campus.

15. Fish ponds Institute with laboratories Microstraining Secondary sedimentation Rotating disk filters Denitrification Digester Oxidation ditch Gas holder Primary sedimentation Thickener Screening plant Solid waste management Research halls Energy building

16. Address • Stuttgart University • Institute for Sanitary Engineering, Water Quality & Waste Management - ISWA • Chair of Waste Management and Air Purification - Prof. Dr.-Ing. O. Tabasaran • Bandtäle 2 • 70569 Stuttgart - Germany • Tel. +49 (0)711 / 685 5495 Fax. +49 (0)711 / 685 5460 • http://www.uni-stuttgart.de/siwa/ • Contact • Dieter Steinbach, Andrea Schultheis • Tel. +49 (0)711 / 685 5424 Fax. +49 (0)711 / 685 5460 • steinbach@iswa.uni-stuttgart.de / schultheis@iswa.uni-stuttgart.de