Ruhrverband Current Issues of Economy and Sanitation Dr. Arno Bäumer Ruhrverband, Germany

Transcription

1 ATHENS European Week, Autumn 2013 November 19, 2013 EUROPEAN WATER AND SANITATION SERVICES vs. SUSTAINABLE DEVELOPMENT Ruhrverband Current Issues of Economy and Sanitation Dr. Arno Bäumer Ruhrverband, Germany

2 Structure of the Presentation Climate and hydrology in Germany Water quantity and Water quality management of Ruhrverband Legal form, structure and management system Current discussions on economy and micropollutants

3 Average Annual Runoff Quelle: European Environment Agency A4/49 (e)

4 Normal area Sensitive area Application of article 5(8) => meet demands of sensitive areas Urban Wastewater Treatment Sensitive and Less Sensitive Areas in the European Union 1A/54 Quelle: European Environment Agency, Stand 2007/2008 1A/72

5 1A/32(e)

6 Structure of the Presentation Climate and hydrology in Germany Water quantity and Water quality management of Ruhrverband Legal form, structure and management system Current discussions on economy and micropollutants

7 Europe and Germany Ruhrverband A3/1/32 b(e)

8 Area of the Ruhr River Association Rhine River Length 216 km Catchment area 4485 km² Average flow 80.5 m³/s Non-influenced natural minimum flow 4 m³/s Spring on 800 meters km A3/1/37 (e)

9 for 4 million people and the industry Abstraction for water supply 500 million m³/year, From which loss of 200 million to neighbour basins (= 7 m³/s)

10 Reservoir of River Möhne Sp3/54 Sp3/54(e)

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12 for 4 million people and the industry for 2.1 million people and the industry

13 WWTP Duisburg-Kaßlerfeld A10/195(e)

14 Mio. Investments in the Sector Water Quality Management (absolute figures without index) 140,0 120,0 100,0 119,5 110,2 107,5 93,1 90,0 103,1 106,6109,3 106,8101,7 97,7 93,3 84,1 101,9 Prognose Ist 80,0 73,9 72,6 60,0 60,7 40,0 20,0 22,5 25,7 32,1 38,0 27,4 28,1 23,9 19,9 0, Jahr

15 Improvement of Ruhr Water Quality at Essen ( ) mg/l µg/l DOC 4,8 CSB 21 BSB 5 7,9 NH 4 -N 1,0 P ges 1,0 Ni 59 Cd 2,8 Pb 8 Zn ,6 9,4 1,9 1, ,07 0,08 3,3 0,09-46% -55% -76% -93% -92% -94% -97% -78% -75% rate of reduction [%] A7/116 f (e)

16 Development of the saprobic quality of the Ruhr River 1972 throughout 2005

17 Structure of the Presentation Climate and hydrology in Germany Water quantity and Water quality management of Ruhrverband Legal form, structure and management system Current discussions on economy and micropollutants

18 RV-Headquarters A3/1/40 A3/1/52(e)

19 Water Management Associations in Northrhine-Westphalia A3/10/12 (e)

20 The structure: Bringing together the interests of all members The Ruhrverband is a self administrated public utility (in form of a cooperative) The Ruhrverband has close to 600 members (all with compulsory membership) - Cities and municipalities in the Ruhr catchment area - Waterworks - Industrial dischargers There is a need for a democratical mutual consent about major programmes 117 delegates from municipalities 21 delegates from parties which withdraw water 11 delegates from producing (and polluting) industry 2 delegates from agriculture A3/6/23

21 Assembly of Delegates A3/6/17(e)

22 Assembly of Delegates, Voting Procedure A3/6/16(e)

23 Figures of Ruhrverband employees: 1000 total assets: 1.3 billion yearly turnover: 300 million charges = costs => non profit! Members of Ruhrverband: 60 municipalities 389 industrial production companies 139 water withdrawing companies A3/1/51

24 Advantages of integrated river basin management and water governance As rivers do not know any political borders, it is most effective, economical, and therefore reasonable to perform water resources management within natural river basins. All water-related measures can be performed by supra-municipal master plans instead of local decisions. Planning of facilities can be centralized to minimize costs. Operation of plants can be regionalized according to the topographical situation and the given traffic connections in the basin. The self-government of a river association ensures the participation of all compulsory members in the decision-making process. Many synergy effects can be unlocked and utilized in the planning, construction and operation of water facilities.

25 Structure of the Presentation Climate and hydrology in Germany Water quantity and Water quality management of Ruhrverband Legal form, structure and management system Current discussions on economy and micropollutants

26 Trace Substances in Water of the River Ruhr currently in focus (Research Project of IWW Mülheim together with the University of Aachen by order of the NRW-Ministry) Perfluorinated surfactants (PFC or PS): PFOA, PFOS Chelating agents: EDTA, DTPA, NTA Flame retardants: TCPP, TCEP Pharmaceuticals: carbamazepine, diclofenac Radio contrast agents: amidotrizoic acid, iopamidol B3M/7 (e) B3/130

27 Konkrete Maßnahmen Bau einer großtechnischen Anlage zur Elimination von Spurenstoffen Standort der Anlage: KA Schwerte EW überwiegend kommunales Abwasser Baufeld B3M/96 b

28 Fullscale Treatment Plant for the Removal of Micropollutants from Municipal Wastewater in Schwerte, May 2010 from left to right: container for distribution of electricity and for ozone production, storage tanks for pure oxygen and for powdered activated carbon, reaction tanks for ozone and activated carbon B3M_c/146

29 Removal [%] of several parameters and micropollutants depending on dosage of powdered activated carbon (PAC) 95% 95%96% 93% 97% 94% 95% 97% 92% 89% 81% 87% 89% 83% 82% 88% 95% 87% 86% 85% 84% 79% 73% 71% 100% 93% 90% 83% 89% 94% 95% 91% 91% 92% 93% 97% 95% 97% 94% 88% 94% 69% 78% 66% 73% 75% 64% 75% 78% 46% 68% 25% 61% 58% 34% 33% 41% -148% 50% 0% -25% VE 20 mg/l 20IVmg/l PACPAK Eliminationsgrad Removal [%] [%] 95% 91% 98% 41% 21% 30% 43% 31% -30% VE15IIImg/l PAC 15 mg/l PAK 30% 2% -22% VE10II mg/l PAC 10 mg/l PAK -1% 0% 12% 17% 18% PAC -17% VE5I mg/l 5 mg/l PAK -77% without PAC Mittelwert alle VE (NK1) PAC: Dosage of Powdered Activated Carbon to Recirculation stream B3M_e/229 (e)

30 Benchmarking In Germany... Metric benchmarking focus on entire utilites: Fast growing attendance with many hundreds of participating utilities; very aggregated information => hard to analyse in detail Process benchmarking focus on detailed processes: Approaches for different fields of activity e.g. wwtp, laboratory, human resources much more detailed => detailed share of experience

31 Benchmarking Notes on the interpretation of results... High performance indicators do not directly indicate potential savings. Decisive factors for differing costs are: o different local conditions and prices, o characteristics in process engineering, o way and costs of sludge and residue disposal => There is no general Best Practice. Everyone has to identify his own way of improving.

32 Summary: Possible strategic targets for a wastewater utility create bright prospects for the utility minimize the impacts of the discharged wastewater on the aquatic life obey the laws for wastewater disposal wastewater utility keep the fees for the customers as low as possible increase the profit of the utility minimize health hazards for the population A3/1b/85

33 Summary: Possible strategic targets for a wastewater utility create bright prospects for the utility X minimize the impacts of the discharged wastewater on the aquatic life obey the laws for wastewater disposal wastewater utility keep the fees for the customers as low as possible X increase the profit of the utility minimize health hazards for the population A3/1b/85

34 Ruhrverband Current Issues of Economy and Sanitation Dr. Arno Bäumer Ruhrverband, Germany

35 Groundwater Recharge in the Ruhr Valley (Scheme) final treatment / pumping station low rate sand filtration pretreatment clay clay sand layer Ruhr River gravel collecting galleries rock A11/22(e)

36 Wasserwirtschaft an der Ruhr (2010) sekündlicher Abfluss (m 3 /s) Mio. m 3 /a aufsummierter Jahresabfluss (Mrd. m 3 ) 2,5 2, ,6 m 3 /s 1, , ,8 m 3 /s 6,9 m 3 /s 594 Mio. m 3 /a mittl. unbeeinflusster Abfluss der Ruhr Entnahme Entziehung 217 Mio. m 3 /a 654 Mio. m 3 /a 472 Mio. m 3 /a 0,5 mittl. Zufluss der Talsperren im Ruhreinzugsgebiet Stauraum der Talsperren im Ruhreinzugsgebiet unbeeinflusster Minimalabfluss 0 Sp1b/79