Assessing the potential of using water reclamation to improve the water environment and economy: scenario analysis of Tianjin, China

Water Policy ◽  
2014 ◽  
Vol 17 (3) ◽  
pp. 391-408 ◽  
Author(s):  
Nan Xiang ◽  
Feng Xu ◽  
Min-Jun Shi ◽  
Ding-Yang Zhou
Keyword(s):  
Water Management ◽  
Scenario Analysis ◽  
Water Environment ◽  
Reclaimed Water ◽  
Economic Benefits ◽  
Pollutant Emission ◽  
Management Approach ◽  
Economic Management ◽  
Integrated Water Management ◽  
Tianjin City

Tianjin City in China is a typical area that suffers from a serious water resource shortage and pollution problems, and this situation has spurred the use of reclaimed water as an additional source of water and an efficient method of improving water quality. This study aims to assess the reclaimed water utilisation amount available and its potential impacts on the water environment and economy, and proposes applicable approaches to establish the optimal development for Tianjin. A water resources-environment-economic management model was constructed, which was accomplished by dynamic linear optimisation. Through scenario analysis, Tianjin's optimal reclaimed water recycle rate can reach 56%, with 475 × 106 tons of reclaimed water amount available (supporting 22% of the water supply), while bringing sufficient environmental and economic benefits, such as reducing 20% of water pollutants and maintaining 6.3% annual economic growth by 2020. This research also suggests that an integrated water management approach is preferable, including a proper introduction of technologies suited to the region's needs, a support system for construction, and control of water pollutant emission sources, especially in agriculture. The originally formulated water management system can be easily applied and extended to solve water issues, especially for water recycling.

Living with water: at the cross-roads of change

1995 ◽  
Vol 31 (8) ◽  
pp. 393-400 ◽  
Author(s):  
Joost de Jong ◽  
Peter T. J. C. van Rooy ◽  
S. Harry Hosper
Keyword(s):  
Water Management ◽  
Water Quality ◽  
Water Environment ◽  
Integrated Water Management ◽  
Practical Action ◽  
The People ◽  
Global Perception ◽  
Local Water ◽  
Water Quality Deterioration ◽  
The Way

Until the last two decades, the global perception of how to control our various water bodies was remarkably similar – water management was organised on a sectoral basis, as it always had been. It was only in the 1970s that the people actually responsible for implementing water management began to become aware of the serious implications of such an approach: water quality deterioration, desiccation and an alarming loss of the flora and fauna that characterised their local water environment. It was a growing awareness that led to the formation of the concept of integrated water management, a concept almost universally accepted today as the way forward. However, despite the fact that few dispute the validity of the concept, a number of obstacles remain before this theoretical agreement can be transformed into practical action. Three main bottlenecks stand in the way of implementation: institutional, communicational and socio-political. Whilst solutions to these are available, the key question still to be answered is whether society is really prepared to accept the consequent changes in the way we live that will result from putting the theory of integrated water management into practice. It was this issue that dominated the “Living with water” conference held in Amsterdam in September 1994. The following is a summary of the discussions held there and the various papers that were submitted.

Integrated Water Management Approach for Vulnerability Reduction in Delhi, India

2018 ◽  
Vol 6 (9) ◽  
pp. 24
Author(s):  
A. Kaur ◽  
T. Ghawana ◽  
V. Singh ◽  
C. Arvind ◽  
D. K. Chadha
Keyword(s):  
Water Management ◽  
Supply And Demand ◽  
Integrated Approach ◽  
Management Approach ◽  
Institutional Reforms ◽  
Integrated Water Management ◽  
Cascading Effects ◽  
Development Goals ◽  
The Times ◽  
Disaster Event

Water supply and demand gap is a potential crisis situation for any metro city like Delhi. This situation can escalate during the times of disaster events due to their cascading effects damaging the water storage and supply network infrastructure. Under this study, integrated water management has been emphasized as a comprehensive approach to address the crisis during extreme events. The process of integrated water management is described not only from water management perspective but also from perspectives of disaster management and Sustainable Development Goals. Emphasis on technological and institutional reforms for efficient and effective implementation during disaster event has been given. Along with this, the role of community participation is also considered as an integral component to make the proposed integrated approach sustainable. Results of an impact assessment study on human lives, economic and environmental conditions can be used to create holistic response plans which subsequently may result in disaster risk reduction and thus increased resilience towards vulnerability in disaster scenarios.

scholarly journals A bricolage-style exploratory scenario analysis to manage uncertainty in socio-environmental systems modeling: investigating integrated water management options

2020 ◽  
Vol 2 ◽  
pp. 16227 ◽  
Author(s):  
Baihua Fu ◽  
Joseph H.A. Guillaume ◽  
Anthony J. Jakeman ◽  
Michael J. Asher
Keyword(s):  
Water Management ◽  
Scenario Analysis ◽  
Policy Design ◽  
Exploratory Analysis ◽  
Marginal Effect ◽  
Management Options ◽  
Integrated Water Management ◽  
Analysis Process ◽  
Model Components ◽  
Context Specific

Exploratory analysis, while useful in assessing the implications of model assumptions under large uncertainty, is considered at best a semi-structured activity. There is no algorithmic way for performing exploratory analysis and the existing canonical techniques have their own limitations. To overcome this, we advocate a bricolage-style exploratory scenario analysis, which can be crafted by pragmatically and strategically combining different methods and practices. Our argument is illustrated using a case study in integrated water management in the Murray-Darling Basin, Australia. Scenario ensembles are generated to investigate potential policy innovations, climate and crop market conditions, as well as the effects of uncertainties in model components and parameters. Visualizations, regression trees and marginal effect analyses are exploited to make sense of the ensemble of scenarios. The analysis includes identifying patterns within a scenario ensemble, by visualizing initial hypotheses that are informed by prior knowledge, as well as by visualizing new hypotheses based on identified influential variables. Context-specific relationships are explored by analyzing which values of drivers and management options influence outcomes. Synthesis is achieved by identifying context-specific solutions to consider as part of policy design. The process of analysis is cast as a process of finding patterns and formulating questions within the ensemble of scenarios that merit further examination, allowing end-users to make the decision as to what underlying assumptions should be accepted, and whether uncertainties have been sufficiently explored. This approach is especially advantageous when the precise intentions of management are still subject to deliberations. By describing the reasoning and steps behind a bricolage-style exploratory analysis, we hope to raise awareness of the value of sharing this kind of (common but not often documented) analysis process, and motivate further work to improve sharing of know-how about bricolage in practice.

scholarly journals Pipes, Taps and Vendors: An Integrated Water Management Approach

2020 ◽  
Author(s):  
Georg Meran ◽  
Markus Siehlow ◽  
Christian von Hirschhausen
Keyword(s):  
Water Management ◽  
Management Approach ◽  
Integrated Water Management

A seasonal waste load allocation policy in an integrated discharge permit and reclaimed water market

Water Policy ◽  
2015 ◽  
Vol 18 (1) ◽  
pp. 235-250 ◽  
Author(s):  
Shervin Jamshidi ◽  
Mojtaba Ardestani ◽  
Mohammad Hossein Niksokhan
Keyword(s):  
Dynamic Pricing ◽  
Integrated Management ◽  
Reclaimed Water ◽  
Economic Benefits ◽  
Management Approach ◽  
Waste Load Allocation ◽  
Allocation Policy ◽  
Recommended Treatment ◽  
Treatment Processes ◽  
Waste Load

This paper intends to assess the seasonal demand for nitrogen discharge permits and its influence on waste load allocation (WLA) strategies. For this purpose, the Sefidrud catchment is analyzed, where the agricultural demands for discharge permits and reclaimed water (RW) are significant and also intermittent. The paper discusses using variable total maximum daily loads and a transferable discharge permit (TDP) with respect to the farming and non-farming seasons to achieve annual economic benefits. However, an integrated TDP and RW market can considerably increase these revenues. Moreover, the latter may provide the flexibility required for practical dynamic WLA and makes it compatible with seasonal demands. The optimal WLA also determines the required wastewater treatment processes. Here, some should be designed and equipped with flexible operational processes. As a result, the novel integrated management approach saves 25% and 13% in comparison with the conventional TDP market in the short and long term, respectively. This framework also recommends the pricing for permits in a year to enhance stakeholders' motivation for active participation. It is concluded that the integrated TDP and RW market, using the recommended treatment processes and dynamic pricing, is an economically attractive and practical policy for seasonal WLA.

scholarly journals Changing Agricultural Landscapes in Ethiopia: Examining Application of Adaptive Management Approach

2020 ◽  
Vol 12 (21) ◽  
pp. 8939
Author(s):  
Amare Haileslassie ◽  
Wolde Mekuria ◽  
Petra Schmitter ◽  
Stefan Uhlenbrook ◽  
Eva Ludi
Keyword(s):  
Water Management ◽  
Adaptive Management ◽  
Management Practices ◽  
Local Community ◽  
Economic Benefits ◽  
Agricultural Landscapes ◽  
Management Approach ◽  
Management Interventions ◽  
Land And Water Management ◽  
The Impact

Ethiopia has decades of experience in implementing land and water management interventions. The overarching objectives of this review were to synthesize evidences on the impact of implementation of land and water management practices on agricultural landscapes in Ethiopia and to evaluate the use of adaptive management (AM) approaches as a tool to manage uncertainties. We explored how elements of the structures and functions of landscapes have been transformed, and how the components of AM, such as structured decision-making and learning processes, have been applied. Despite numerous environmental and economic benefits of land and water management interventions in Ethiopia, this review revealed gaps in AM approaches. These include: (i) inadequate evidence-based contextualization of interventions, (ii) lack of monitoring of bio-physical and socioeconomic processes and changes post implementation, (iii) lack of trade-off analyses, and (iv) inadequacy of local community engagement and provision of feedback. Given the many uncertainties we must deal with, future investment in AM approaches tailored to the needs and context would help to achieve the goals of sustainable agricultural landscape transformation. The success depends, among other things, on the ability to learn from the knowledge generated and apply the learning as implementation evolves

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