scholarly journals Territorial Integration of Water Management in the City

Author(s):  
Susana Neto
2010 ◽  
Vol 5 (4) ◽  
Author(s):  
J. L. Manuszak ◽  
M. MacPhee ◽  
S. Liskovich ◽  
L. Feldsher

The City of Baltimore, Maryland is one of many US cities faced with challenges related to increasing potable water demands, diminishing fresh water supplies, and aging infrastructure. To address these challenges, the City recently undertook a $7M study to evaluate water supply and treatment alternatives and develop the conceptual design for a new 120 million gallon per day (MGD) water treatment plant. As part of this study, an innovative raw water management tool was constructed to help model source water availability and predicted water quality based on integration of a new and more challenging surface water supply. A rigorous decision-making approach was then used to screen and select appropriate treatment processes. Short-listed treatment strategies were demonstrated through a year-long pilot study, and process design criteria were collected in order to assess capital and operational costs for the full-scale plant. Ultimately the City chose a treatment scheme that includes low-pressure membrane filtration and post-filter GAC adsorption, allowing for consistent finished water quality irrespective of which raw water supply is being used. The conceptual design includes several progressive concepts, which will: 1) alleviate treatment limitations at the City's existing plants by providing additional pre-clarification facilities at the new plant; and 2) take advantage of site conditions to design and operate the submerged membrane system by gravity-induced siphon, saving the City significant capital and operations and maintenance (O&M) costs. Once completed, the new Fullerton Water Filtration Plant (WFP) will be the largest low-pressure membrane plant in North America, and the largest gravity-siphon design in the world.


2018 ◽  
Vol 45 ◽  
pp. 00058 ◽  
Author(s):  
Ireneusz Nowogoński ◽  
Ewa Ogiołda

Using SWMM 5.1 (Storm Water Management Model) software, a model of sewage system functioning in Głogów was developed. It was calibrated based on the results of field studies from the years 2011– 14, while the properness of its activity was verified for the results of measurements carried out during the period 1998–2000. The verification of the model showed acceptable discrepancies between the measured and simulated values of channel depth. Factors which caused differences were indicated and, on the basis of this, conclusions pertaining to further studies were formulated.


2021 ◽  
Author(s):  
Khawon Lee ◽  
Sun Woo Chang ◽  
Jeryang Park

<p>    Groundwater is the largest freshwater resource available on Earth, and many coastal regions are depending on groundwater as a primary freshwater source. For example, in Busan and Incheon, two of the largest coastal cities in South Korea, 5.7% and 7.0% of freshwater uses are from groundwater while only 1.8% is from groundwater in Seoul, the capital of the country. Globally, groundwater availability is diminishing primarily by population increase, and especially in coastal regions, this problem is exacerbated by overexploitation and seawater intrusion, which causes groundwater contamination and further reduces its availability. Here, we view the groundwater system and its management for sustainability as a complex problem that is associated with various social, economic, and environmental factors. By adopting the City Blueprint Approach (CBA), which has been used extensively for assessing the sustainability of integrated water management of numerous cities on the globe, we identify water management factors that potentially have direct and indirect links and feedbacks with groundwater variables. We selected Busan and Incheon as case studies for coastal cities that are facing the risk of groundwater salinization by seawater intrusion. This study aims to 1) assess City Blueprint (CB) of selected coastal cities, 2) identify major factors for coastal groundwater management through correlation analysis, and 3) suggest management options regarding identified factors for sustainable groundwater management of the study areas. Our results on CB indicate that the groundwater quality and quantity of the selected cities are currently in ‘good’ status. Also, from the correlation analysis, we identified heat risk and freshwater scarcity as the major factors that potentially can affect groundwater quantity. For groundwater quality, the factors of voice and accountability, regulatory quality, and rule of law and control of corruption, most of which had not been explicitly considered for groundwater management, were identified as the major factors. Some of these factors were assessed from ‘little concern’ to ‘very concern’ for both cities. These results indicate that, regarding the linkages between groundwater variables and other factors in concern, more actions beyond environmental factors should be taken for sustainable groundwater management. This study helps to understand how non-conventional factors could contribute to coastal groundwater, and can provide extensive options for sustainable groundwater management.</p><p> </p><p><strong>Acknowledgement</strong>: This research was supported by the Development program of Minimizing of Climate Change Impact Technology through the National Research Foundation of Korea (NRF), funded by the Korean government (Ministry of Science and ICT) (NRF-2020M3H5A1080775).</p>


2007 ◽  
Vol 55 (1-2) ◽  
pp. 441-448 ◽  
Author(s):  
J. Lahnsteiner ◽  
G. Lempert

For decades, the city of Windhoek in Namibia succeeded in stretching their limited potable water resources through strict water management, latterly including wastewater reclamation and direct potable reuse. An integrated approach was followed and proper policies were put in place. This was followed up with appropriate legislation, education, policing and technical and financial measures with the result that extreme water shortages were overcome even in times of severe droughts.


2019 ◽  
Vol 20 (2) ◽  
pp. 679-687 ◽  
Author(s):  
Angelos Alamanos ◽  
Stamatis Sfyris ◽  
Chrysostomos Fafoutis ◽  
Nikitas Mylopoulos

Abstract The relationship between water abstraction and water availability has turned into a major stress factor in the urban exploitation of water resources. The situation is expected to be sharpened in the future due to the intensity of extreme meteorological phenomena, and socio-economic changes affecting water demand. In the city of Volos, Greece, the number of water counters has been tripled during the last four decades. This study attempts to simulate the city's network, supply system and water demand through a forecasting model. The forecast was examined under several situations, based on climate change and socio-economic observations of the city, using meteorological, water pricing, users' income, level of education, family members, floor and residence size variables. The most interesting outputs are: (a) the impact of each variable in the water consumption and (b) water balance under four management scenarios, indicating the future water management conditions of the broader area, including demand and supply management. The results proved that rational water management can lead to remarkable water conservation. The simulation of real scenarios and future situations in the city's water demand and balance, is the innovative element of the study, making it capable of supporting the local water utility.


Author(s):  
Mark Caljouw ◽  
Peter J.M. Nas ◽  
Mr. Pratiwo

Sunday, 27 January 2002, a large flood swept down on Jakarta and inundated several parts of the city. From the evening of 27 January to the morning of 28 January rain came streaming down, and the dike south of Jakarta broke. The pungent black water, with a hefty cargo of garbage, poured onto the main roads to Bogor, Kramat Jati and East Jakarta. In North Jakarta, in Kelurahan Pejagalan, Kecamatan Penjaringan, the flooding or banjir hit at midnight and continued until five o’clock in the morning, reaching levels as high as 20 cm. Even harder hit was Kelurahan Kapuk Muara, inundated with 70 cm of water.


2021 ◽  
Vol 1 (47) ◽  
pp. 192-200
Author(s):  
T. G. Chala ◽  
◽  
O. I. Slavuta ◽  
G. S. Korepanov ◽  
D. I. Chernenko ◽  
...  

The article aims at substantiating the theoretical and methodological foundations for creating a unified statistical indicators system and statistical analysis of the water resources management at the city level. The advantages of using standardized indicators in the field of sanitation and water supply at the city level are identified and characterized in accordance with ISO 37120: 2014 «Sustainable cities and communities – indicators of urban services and quality of life». Both the main and auxiliary indicators of urban services and quality of life on «Water and sanitary conditions» and «Sewage» topics are systematized as for their formulas, application features and data sources. It is established that, according to the Water Risk Filter, Ukraine can be divided into four regions depending on the water risk, namely, low, moderately medium, medium, and high water risk levels. Based on these data, such cities from the Global Register of Cities developed by the World Council on City Data (WCCD) were selected: Amsterdam (Netherlands), Barcelona (Spain), Dubai (United Arab Emirates), Guadalajara (Mexico). Their indicators in the field of sanitation and water supply were analyzed. It is established that these cities are characterized by a high level of water supply and sewerage services, as well as a fairly high level of the access to high-quality sanitary and hygienic conditions. The situation with quality indicators of water management is worse. For example, advanced waste treatment is only carried out in Dubai. In Guadalajara, 21% of urban wastewater is not treated at all. It is established that in general, Dubai is the leader in the quality of water supply and sanitation services, while Guadalajara is the outsider city, showing the lowest quality levels of most of the studied indicators. The national system of indicators is suggested to be expanded by including such an indicator as «Average annual duration of water supply outages per 1 household»


Water ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 785 ◽  
Author(s):  
Olivia Jensen ◽  
Sreeja Nair

Integrated Urban Water Management (IUWM) has emerged in the past two decades as a promising approach to the application of Integrated Water Resources Management (IWRM) principles at the city-level. IUWM is expected to contribute to the achievement of multiple policy objectives, often including increased water security. This paper uses a case-based approach to study the impact of IUWM on water security, focusing on the influence of the level of institutionalization of IUWM within water governance at the city-level. Process tracing is applied to the cases of Singapore and Hong Kong, in which IUWM has been adopted but implementation and outcomes have diverged. We find that the depth of institutionalization, a difference between the two cases identified at the outset, has contributed to the achievement of better water security outcomes in Singapore as it has facilitated the development and implementation of a more far-reaching strategy. A supportive governance framework appears to amplify the impact of IUWM on progress towards water security and other policy targets.


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