KALLISTO: cost effective and integrated optimization of the urban wastewater system Eindhoven

2012 ◽  
Vol 7 (2) ◽  
Author(s):  
S. R. Weijers ◽  
J. de Jonge ◽  
O. van Zanten ◽  
L. Benedetti ◽  
J. Langeveld ◽  
...  
Keyword(s):  
Decision Making ◽  
Water System ◽  
Cost Effective ◽  
Decision Making Process ◽  
Urban Water ◽  
Urban Wastewater ◽  
Urban Water System ◽  
Treatment Techniques ◽  
Project Strategy

The Kallisto project aims at finding cost effective sets of measures to meet the WFD derived goals for the river De Dommel. The project reasons from the both acute and long term impacts of the urban wastewater system on the quality and ecology of the river that are studied with an integral monitoring campaign in the wastewater system (WWTP and sewers) and river. By applying impact based RTC, the project aims at minimizing additional investments in infrastructure while meeting the requirements. Moreover, uncertainty is explicitly considered in the optimization and decision making process. The paper describes the overall project strategy, some preliminary results of modelling and monitoring of the components of the urban water system and the demonstration research for treatment techniques and the planned integration into optimization and decision making.

Assessing cost‐effective nutrient removal solutions in the urban water system

2020 ◽  
Vol 49 (3) ◽  
pp. 534-544 ◽  
Author(s):  
Brock Hodgson ◽  
Tyler Dell ◽  
Sybil Sharvelle ◽  
Mazdak Arabi
Keyword(s):  
Nutrient Removal ◽  
Water System ◽  
Cost Effective ◽  
Urban Water ◽  
Urban Water System

Life cycle assessment (LCA) of urban water infrastructure: emerging approaches to balance objectives and inform comprehensive decision-making

2017 ◽  
Vol 3 (6) ◽  
pp. 1002-1014 ◽  
Author(s):  
Diana M. Byrne ◽  
Hannah A. C. Lohman ◽  
Sherri M. Cook ◽  
Gregory M. Peters ◽  
Jeremy S. Guest
Keyword(s):  
Decision Making ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
State Of The Art ◽  
Water System ◽  
The State ◽  
Urban Water ◽  
Water Infrastructure ◽  
Urban Water System ◽  
System Sustainability

This review describes the state of the art, identifies emerging opportunities, and develops a path forward for LCA to better address urban water system sustainability.

scholarly journals Applicability of the Analytical Hierarchy Process (AHP) in Decision Making for Integrated Urban Water System in a city

2019 ◽  
Vol 8 (2) ◽  
pp. 1317-1322
Keyword(s):  
Decision Making ◽  
Analytical Hierarchy Process ◽  
Water Policy ◽  
Water System ◽  
Water Structure ◽  
Urban Water ◽  
Water Utility ◽  
Water Users ◽  
Urban Water System ◽  
Hierarchy Process

The urban water system is a complex and dynamic for planning of an integrated framework. This paper illustrates Analytical Hierarchy Process (AHP) technique as a decision-making tool for the municipality’s urban water based on four different criteria i.e. economic, environmental, social, and sustainability to support stakeholders and water utility experts. Due to insufficient funds for the urban water planning, prioritization problems arise and for this hierarchical network represents with prioritization criterion to implement an alternative solution. Saaty’s analytical hierarchy process (AHP) hypothesis is explaining in the study with Multi-Criteria Decision Analysis (MCDA) and adoptable the alternatives through highest priority value. According to the AHP theory, all required criteria are ranking and preparing the list of alternatives to select the most prioritized solution to carry out in the plan of the urban water policy. Along with a consistency, a check of the final judgment is still carrying out by sensitivity evaluation of the synthesis model even if there are changes in decisions. The study find out the best workable solutions for existing issues in the urban water structure by promoting an interface between water users and stakeholders to reach a sustainable strategy in the city. AHP technique not only finds the important of each criterion but still comparing the criteria weights regarding objectives and alternatives. This application of AHP will ease the policymakers and stakeholders in the governing process for next-generation urban water system planning and designing by providing a framework and support to prepare a city master plan.

scholarly journals Managing Apparent Loss and Real Loss from the Nexus Perspective Using System Dynamics

Water ◽  
2022 ◽  
Vol 14 (2) ◽  
pp. 231
Author(s):  
Seo Hyung Choi ◽  
Bongwoo Shin ◽  
Eunher Shin
Keyword(s):  
System Dynamics ◽  
Water Loss ◽  
Management Strategies ◽  
Water System ◽  
Economic Feasibility ◽  
Water Utilities ◽  
Urban Water ◽  
Water Losses ◽  
Urban Water System ◽  
Apparent Loss

When water utilities establish water loss control programs, they traditionally focus on apparent loss rather than real loss when considering economic feasibility in the water sector. There is an urgent need for new management approaches that can address complex relationships and ensure the sustainability of natural resources among different sectors. This study suggests a novel approach for water utilities to manage water losses from the water-energy (WE) Nexus perspective. The Nexus model uses system dynamics to simulate twelve scenarios with the differing status of water loss and energy intensities. This analysis identifies real loss as one of the main causes of resource waste and an essential factor from the Nexus perspective. It also demonstrates that the energy intensity of each process in the urban water system has a significant impact on resource use and transfer. The consumption and movement of resources can be quantified in each process involved in the urban water system to distinguish central and vulnerable processes. This study suggests that the Nexus approach can strongly contribute to quantifying the use and movement of resources between water and energy sectors and the strategic formulation of sustainable and systematic water loss management strategies from the Nexus perspective.

scholarly journals Stress-Testing Framework for Urban Water Systems: A Source to Tap Approach for Stochastic Resilience Assessment

Water ◽  
2022 ◽  
Vol 14 (2) ◽  
pp. 154
Author(s):  
Dionysios Nikolopoulos ◽  
Panagiotis Kossieris ◽  
Ioannis Tsoukalas ◽  
Christos Makropoulos
Keyword(s):  
Water Distribution ◽  
Stress Testing ◽  
Water Cycle ◽  
Water System ◽  
Operating Conditions ◽  
Distribution Model ◽  
Generation Model ◽  
Urban Water ◽  
Testing Framework ◽  
Urban Water System

Optimizing the design and operation of an Urban Water System (UWS) faces significant challenges over its lifespan to account for the uncertainties of important stressors that arise from population growth rates, climate change factors, or shifting demand patterns. The analysis of a UWS’s performance across interdependent subsystems benefits from a multi-model approach where different designs are tested against a variety of metrics and in different times scales for each subsystem. In this work, we present a stress-testing framework for UWSs that assesses the system’s resilience, i.e., the degree to which a UWS continues to perform under progressively increasing disturbance (deviation from normal operating conditions). The framework is underpinned by a modeling chain that covers the entire water cycle, in a source-to-tap manner, coupling a water resources management model, a hydraulic water distribution model, and a water demand generation model. An additional stochastic simulation module enables the representation and modeling of uncertainty throughout the water cycle. We demonstrate the framework by “stress-testing” a synthetic UWS case study with an ensemble of scenarios whose parameters are stochastically changing within the UWS simulation timeframe and quantify the uncertainty in the estimation of the system’s resilience.

scholarly journals Context Analysis in the Development of Diving Technologies

2019 ◽  
Vol 67 (2) ◽  
pp. 7-58
Author(s):  
Ryszard Kłos
Keyword(s):  
Decision Making ◽  
Continuous Improvement ◽  
Previous Article ◽  
Decision Making Process ◽  
Context Analysis ◽  
New Approach ◽  
Knowledge Based ◽  
Research Cycle ◽  
Level Of Risk

Abstract The previous article described a new approach methodology1 for work on the development of technology for the use of the SCR CRABE SCUBA2 type diving apparatus. However, after its publication numerous questions emerged regarding the genesis of the research undertaken, also from foreign partners using the same rebreather. The work on changing the technology of use was preceded by analyses, which were available only to people involved in the decision-making process. Demonstrating all the details of the decision-making process may be tedious, but failing to present them at all might raise justified doubts about the advisability of conducting a long-term research cycle. This article only presents preliminary analyses. The necessity to perform them resulted from the specific requirements for military technologies3 which, as broadly as possible, should be knowledge-based. The knowledge-based approach by its very nature allows continuous improvement of the adequacy of the predictions made, the estimation of the level of risk when diagnosing deviations from the repeatability or precision of the model, and the possibility of adapting the technology to the changing requirements of the user resulting from tactical considerations of its use.

scholarly journals Investment analysis of plum brandy production – methodology approach

2008 ◽  
Vol 2 (1-2) ◽  
pp. 103-105
Author(s):  
Lari Hadelan
Keyword(s):  
Decision Making ◽  
Planning Process ◽  
Investment Decision ◽  
Investment Analysis ◽  
Decision Making Process ◽  
Investment Appraisal ◽  
Financial Decision ◽  
Plum Brandy

The major prerequisite of successful entrepreneurship venture is quality of decision-making process. Decision in investment is the most important financial decision. It is a part of both long-term business planning process and strategic business definition. Using available investment appraisal methods, entrepreneur should make positive or negative investment decision. Within the development of the economic theory and the practice many of methods made decision-making process rational and gave the scientific and practical base for successful project evaluation.

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