Systems Analysis of Zaragoza Urban Water - SWITCH - Managing ...

More documents

Recommendations

Info

Systems Analysis of Zaragoza UWS Guillermo Penagos 4 Results 4.1 Data availability and information gaps In order to improve processes it is necessary to get a set of data that describes such processes as best as possible. Therefore, one of the goals of this research was to identify current information gaps that need to be filled in order for Zaragoza municipality and other stakeholders to get a better picture of the weaknesses and strengths of the urban water system, which will significantly contribute to set up priorities. The following are the information gaps identified to be important in this research: 1. Groundwater recharge 2. Parasitic water to the sewers 3. Storm water quantity and quality 4. Industrial vs Domestic contribution to pollution loads to the sewage 5. Actual leakage in the distribution network 6. Distribution and Sewer network modeling Both distribution and sewer network are fully mapped and implemented in a GIS, which is of high potential for covering information gaps and improve water management. Annex 1 lists the information necessary for LCA and its availability at Zaragoza municipality. The frequency of measurements or samplings, the type of data and the aggregation level are also described. Most data are available from 2000, previous data exists as hardcopies deposited in archives which were not assessed due to time limitation for this M Sc project. Most data gathered were measured with some exceptions were estimations were made from printed reports. Since no modeling has been implemented by the Municipality to any of the UWS process there are no modeled data. 4.2 General features of Zaragoza UWS Figure 2 shows the flow diagram for Zaragoza UWS, including a water balance and material inputs (chemical products) and outputs (sludge). The general features of this water system are summarized in this figure where 8 levels are recognized: (1) water inputs which includes storm water, tap water source, agriculture irrigation and groundwater; (2) drinking water treatment process; (3) distribution system; (4) Water 20
Systems Analysis of Zaragoza UWS Guillermo Penagos consumption and use, which includes households, public facilities, landscaping, industry connected to the sewer system and industry using exclusively groundwater and not connected to the sewer system; (5) combined sewer system (6) WWTP which includes two public facilities and two private ones (7) receiving environment and (8) chemical products used for both DWT and WWT. Every level will be explained in more detail next and figure 2 will remain as recurrent reference along the text. 21
Page 1 and 2: Systems Analysis of Zaragoza UWS Gu
Page 19: Systems Analysis of Zaragoza UWS Gu
Page 71 and 72:
Systems Analysis of Zaragoza UWS Gu
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
Page 95 and 96:
show all

Systems Analysis of Zaragoza Urban Water - SWITCH - Managing ...

Create successful ePaper yourself

Delete template?

Save as template?