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

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Chapter 2 · New Conception 25 of rainwater involves also two streams as the surface runoff and roof-water behave totally different and can be the parallel systems, so they are managed and utilised in different ways. Structure and Process for Determining Subsystem Options Integrated Urban Water System Subsystem 1 Water Usage Subsystem 2 Water Source Subsystem 3 Desired Water Subsystem 4 Used Water Inflow quality Outflow quality Treatment Distribution Water Inflow Collection Receptor/User Outflow quality Matter Inflow Collection Handling Transport Subsystem 5 Rainwater Surface runoff management Roof-water utilisation Collection 2.2.1 Water usage Water entity End uses Source type Quantity Legend: Desired water quality Storage Receptor Outflow quality Collection Treatment for information Inflow collcetion management Possible supplied quality Supply method Treatment Distribution Used water quantity Intake Transmission Treatment Infiltration facility Figure 11: Structure and process for determining subsystem options for infrastructure calculation Gathering method Distribution Being of the water usage side, two aspects need to be satisfied, i.e. water quantity and quality. In order to fit the hierarchy of the IUWS, as well as fulfil the requirements of IUWS, the new system for water usage management is constructed based on the coordination between quantity and quality. 2.2.1.1 water end-user In this conception, the water end-users are identified as grouped water consumers, which cover certain area and have different kinds of water end uses with different desired water qualities. These grouped end-users are the basic functional units in cities. Typical examples are university, hospital, school, shopping centre, etc. This categorisation provides chance to balance the water consumption inside groups and subsequently, promotes more system options in a small scale. As one of the most important conception in IUWS, these kinds of grouped water endusers are specially corresponding to the WUU and WUC that are particularly constructed for
26 New Conception and Decision Support Model for IUWS the hierarchy of the IUWS (see § 2.1.3). In urban area, there are many different kinds of the grouped water end-users that are divided into three sorts, i.e. 1. social and commercial, 2. communal and ecological, and 3. industrial and special end-users (Figure 12). There are more types than shown in Figure 12, so the corresponding database should be established for gathering and adding all possible grouped end-users. Categorisation of Grouped Water End-Users social and commercial residential quarter office centre communal and ecological industrial and special university shopping centre landscape waterscape school hospital airport seaport sport center recreational site food paper textile swimming centre street washing car-washing centre club complex lake / pond construction site Figure 12: Categorisation of grouped water end-users 2.2.1.2 end-user’s water usage profile (EUWUP) . . . . . . . . . . . . . . . . . . Subsequently, the grouped water end-user’s water usage profile (EUWUP) is defined as that each type of water end-user has specified and standardised information of water usage including water demand with required water qualities and used water amounts from different streams. Two measures are taken, i.e. detailed EUWUP and general EUWUP. The detailed EUWUP is applied when the adequate project information is available. Otherwise, the general EUWUP is adopted for rough evaluation. Detailed EUWUP. It is constructed based on the quantity and quality requirements of end uses considering their occurring places and purposes of usage. Three sorts of end uses are defined: indoor, outdoor and specialised end uses, where each sort is further fractionised into concrete end uses (Figure 13). The indoor end uses are mainly the water consumption by human beings, the outdoor end uses are for ecological and environmental purposes, and the specialised end uses involve the specific and industrial water consumption. Their quality requirements are corresponding to the desired water standards set up in Table 2. As depicted in Figure 13, besides categorising the water end uses with desired water quality, the information of used water is also shown simultaneously, where the normal water usage profiles take into account only the water demand just in the sense of quantity. The most important significance of the EUWUP is that it pictures the whole view of water usage and provokes the planners to consider and plan both desired water system (i.e. water supply
Page 2 and 3: New Conception and Decision Support
Page 4 and 5: Acknowledgements By this chance, I
Page 6 and 7: Contents Indices I TABLES .........
Page 8 and 9: Indices III 3.6 Realisation Method
Page 10 and 11: Indices V Table 32: Sheet of averag
Page 12 and 13: Indices VII Figure 31: Cost estimat
Page 14 and 15: Definitions term definition & expla
Page 16: Abstract Indices XI Traditionally,
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Page 26 and 27: Chapter 2 New Conception Chapter 2
Page 28 and 29: Composition of Modern Urban Water S
Page 30 and 31: 2.1.4.1 water quality Chapter 2 ·
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Page 36 and 37: Classifcation of Urban Water Treatm
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Page 48 and 49: General Priority of Water Sources C
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LuQi.02 LuQi.01 Source: http://www.
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Appendix.Figure 8: 3-D map of the c
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WUU WUC type area [ha] popul. [capi
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Appendix.Table 14: Water demands an
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unit: m 3 /d demand : current deman
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Appendix.Table 16: Used water amoun
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Chapter 3 Decision Support Model (IUWS-DSM) - Tubdok

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