WP 5 Analysis of present IWRM practices - Brahmatwinn

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The table and the chart below show that the major part of consumptive water in southern Germany is used for public water supply, but the water demand of the industrial sector is high as well. The sector agriculture has comparatively just a small water demand. In the twinning Asian basin the situation is different to this. For hydropower there is a large amount of water necessary. But this water is added to the stream system again. Consequently the losses are not significant. Water extraction for water using sectors in mio.m3 Agriculture; 1,76 Industry; 747,3 Public water supply; 791,4 Public heat power plants; 2229,3 Fig. 3: Water extraction in the German DRB in 2001 The largest percentage of water extraction lies in the federal state Bavaria, because the Danube River basin reaches here into a large part and 65% of the Bavarian population is living in the Danube River basin, including the population of the agglomeration Munich and a few other large cities. The per capita water consumption in the German Danube basin was fallen during the last decades. Major reason is the rising water price, but also more efficient technologies and in industry multiuses by water cycles. Today 136 l per person and day were consumed. The public water supply comprises domestic use and small trade in addition to public institutions. Issues of interest are in this context a changing population number and the development of the person oriented water demand. These two aspects have a significant influence to the prospective water demand of the end user. The water for drinking water supply is to 95% extracted from ground- and spring water (see table). 98% of the population has access to the public water supply, 93% are connected with the sewage water system. Waste water discharges back through municipal waste water treatment plants as well as through direct sewage disposal of manufacturing industry and public thermal power plants. In 2001 about 4 billion m 3 waste water discharged back. In total the water use in this sector was about 790 Mio m 3 in 2001. Following the sector public water supply can be described as one of the major water users. In Austria about 40% of extracted fresh water is used for public water supply. The water is extracted to similar parts of ground and spring water sources. The total water use in the Salzburger Land 8
amounts 90 Mio.m 3 (BUNDESMINISTERIUM FÜR LAND- UND FORSTWIRTSCHAFT, UMWELT UND WASSERWIRTSCHAFT 2001). The water use in Austria is 1 300 Mio.m 3 by industry, 100 Mio.m 3 by agriculture and 750 Mio m 3 by public water supply. Only 1 % is extracted out of surface water bodies, the rest is coming from ground- and spring water. 2.2 Industrial water use In the last years the water demand of the industrial sector has declined continuously. Conventional and high-tech industry branches have generally a high water demand. Some examples are the semiconductor industry, aerospace industry, chemical, weapons and the automobile industry. These water intensive branches have settled down in the Danube River basin and due to in the region emerged highly industrialized centers like the cities Augsburg, Ingolstadt, Regensburg and Munich. The water in the industrial sector is mainly used as cooling water and for energy generation. In the year 2001 the extracted water for industry accords 750 Mio.m 3 . Two third of the used water emanates from surface water. An efficient water use is given due to multiple-shift and circuit usage. In Austria the major water user is the industrial sector which uses 56% of fresh water, 39% is used by public water supply sector and 5% for agricultural uses (BUNDESMINISTERIUM FÜR LAND- UND FORSTWIRTSCHAFT, UMWELT UND WASSERWIRTSCHAFT 2008). 2.3 Related issues in the Salzach The chosen case study Salzach River basin is characterized through the central area of the City of Salzburg. The urban agglomeration of the city with a population of 150 000 dominates the northern part, whereas additional rural and alpine areas (located in the central-eastern part and to the South) characterize the chosen study area. The area is highly dynamic by its economic development. In Salzburg the per capita water consumption is about 120 l. In total 12 Mio.m 3 are needed in 2008 (SALZBURG AG 2009). Fig. 4: Location of ChemDelta Bavaria (CHEMDELTA BAVARIA 2009). 9
Page 1 and 2: Project no: GOCE -036952 Project ac
Page 3 and 4: Summary The twinning Upper Danube R
Page 5 and 6: (approx. 55%) of the usable water r
Page 7 and 8: • In the UDRB substantial progres
Page 9 and 10: Project no: GOCE -036952 Project ac
Page 11 and 12: Directory of figures Fig. 1: Water
Page 13 and 14: In the Austrian part live aproximat
Page 15: 2.1 Public water supply The public
Page 19 and 20: • Transboundary conflicts and tre
Page 21 and 22: populated uplands and the densely p
Page 23 and 24: Tab. 4: Water resources and utiliza
Page 25 and 26: TAR has the lowest per capita indus
Page 27 and 28: Tab. 7: River water quality and was
Page 29 and 30: • Haihe River Water Resources Com
Page 31 and 32: area. The vibrant construction indu
Page 33 and 34: ) new settlements: where a rural wa
Page 35 and 36: Urbanization is also affecting the
Page 37 and 38: ) to enhance the reasonable sharing
Page 39 and 40: the lean flow of 304 cubic meters p
Page 41 and 42: IWMI (2005): Spatial Variation in W
Page 43 and 44: List of contributors Partner 1 FSU
Page 45 and 46: 1 Introduction IWRM in a trans-boun
Page 47 and 48: Danube region in comparison to the
Page 49 and 50: German Meteorological Service. The
Page 51 and 52: 2.1.4 Management in the Salzach bas
Page 53 and 54: Fig. 9: Salzach former (above) and
Page 55 and 56: iverbed sinking. The sinking of the
Page 57 and 58: 3 Water distribution strategies and
Page 59 and 60: The drainage area of the Yarlung Ts
Page 61 and 62: the basin underlain by permafrost r
Page 63 and 64: Other strategies: remove masses of
Page 65 and 66: The few that have been recorded in
Page 67 and 68:
and an increase in intense rainfall
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A practicable judicious combination
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arrangements existed prior to the e
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Discharge in m3/s 5000 4500 4000 35
Page 75 and 76:
Project no: GOCE -036952 Project ac
Page 77 and 78:
Directory of figures Fig. 1: Non po
Page 79 and 80:
Waste water discharges back through
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In the table is shown that nitrogen
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ate alone controls how fast (or slo
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Population in millions 45 40 35 30
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Fig. 5: 1991 - 2080 Tehsil wise pop
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3.2 Trends in Population Growth: Bh
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Tab. 6: Urban population projection
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Major water user in Bhutan is the p
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The Public Health Engineering Divis
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Percent 4 3,5 3 2,5 2 1,5 1 0,5 0 -
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Fig. 11: District population distri
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and approval. The statement assesse
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Project no: GOCE -036952 Project ac
Page 105 and 106:
Directory of figures Fig. 1: Irriga
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Example of government aid for susta
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In Lhasa Gravity Irrigation is main
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36, Wuqi Duilongqu, the branch of L
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These problems have led to a very l
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The National Irrigation Policy was
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pesticides are effective when used
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• Region of Applicability of Resu
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up at Rs. 3.19 Crore for a target o
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References BAYRISCHER OBERSTER RECH
Page 125 and 126:
List of contributors Partner 1 FSU
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In the middle of the river basins,
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to provide water to the urban area,
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References BAYERISCHES LANDESAMT F
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Content Introduction ..............
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echarge dynamics was chosen as the
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They are shown in Fig. 8.1 and 8.2
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Fig. 3: Average modeled water balan
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6 Conclusions for IWRM The applicat
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Krause, P., Bende-Michl, U., Bäse,
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B Surface runoff CLASS VALUE FROM V
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D Baseflow CLASS VALUE FROM VALUE T
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21% 9% 7% WRRU class distribution U
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WP 5 Analysis of present IWRM practices - Brahmatwinn

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