Chapter 3 Decision Support Model (IUWS-DSM) - Tubdok

VI New Conception and Decision Support Model for IUWS
Figures
Figure 1: Evaluation of global water use – withdrawal and consumption by sector (UNESCO
1999).................................................................................................................................1
Figure 2: The evolution of the DSS field (Arnott and Pervan, 2005) .......................................5
Figure 3: Basic architecture for decision support systems (Holsapple 2008)..........................6
Figure 4: Water cycle in modern cities ..................................................................................10
Figure 5: Composition of modern urban water system..........................................................11
Figure 6: Hierarchy of the urban water system (demonstration) ...........................................12
Figure 7: Relationship between different types of water quality ............................................13
Figure 8: Characteristics of domestic wastewater with no dilution for faeces and urine
(Otterpohl at al. 2004) .....................................................................................................17
Figure 9: Classification of urban water treatment processes ................................................19
Figure 10: Flow schema of typical blackwater treatment (redrawn based on IAP) ..............22
Figure 11: Structure and process for determining subsystem options ..................................25
Figure 12: Categorisation of grouped water end-users .........................................................26
Figure 13: Composition of grouped end-user’s water usage profile (EUWUP) .....................27
Figure 14: Demonstration for the water usage of one WUU .................................................28
Figure 15: Process for estimating water usage .....................................................................29
Figure 16: Possible urban water sources and their classification..........................................30
Figure 17: General priority of water sources .........................................................................31
Figure 18: Process for planning water sources .....................................................................31
Figure 19: Process for planning desired water system .........................................................33
Figure 20: Process for planning used water system .............................................................36
Figure 21: Process for planning rainwater system ................................................................39
Figure 22: Planning procedure for IUWS ..............................................................................46
Figure 23: Demonstration of the integrated urban water system (IUWS)..............................47
Figure 24: Architecture of the decision support model (IUWS-DSM)....................................50
Figure 25: General planning procedure for water entities .....................................................51
Figure 26: Planning procedure for water entities of type CA and UD....................................54
Figure 27: Systematic schemma of decision making process...............................................56
Figure 28: Determination mechanism of water sources for IUWS ........................................58
Figure 29: Matrix for determining the type of distribution systems........................................59
Figure 30: Decision making mechanism for collection system..............................................65