Modelling the urban water chain: Incentives and cost recovery in wastewater treatment in developing countries

Gengenbach, Michael; Weikard, Hans‐Peter

doi:10.1080/1573062x.2011.652130

Cited by 4 publications

(2 citation statements)

References 23 publications

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“…This is our first step in introducing a multiple quality dimension to the analysis [14]. The model described above provides an optimal coalition structure on the basis of the data that is entered into it.…”

Section: The Optimum Computation Modelmentioning

confidence: 99%

Coalition Projects to Cut Back Costs of Cleaning Recreational Water Bodies: The Case of Lake Rozkoš

Šauer¹,

Fiala²,

Dvořák³

et al. 2017

Pol. J. Environ. Stud.

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Until recently, in order to treat polluted fresh water it has been typical for major polluters to be addressed from larger to smaller and from springs to river estuaries. The implementation of Water Directive 2000/60/EC [1] contributed significantly to solving water pollution problems in the past.The impacts of climate change on water regimes increased living standards and decreased surface water pollution caused by larger and medium-sized polluters have led to a new strategy: the focus is now on the protection of relatively small areas such as drinking water reservoirs, recreational lakes, and parts of watersheds where there is an increased demand for special protection of nature [2][3].The difference from the previous situation is that multiple (rather smaller) polluters that should be addressed to achieve environmental targets are located in relatively small territories. In this situation, it might make sense for polluters to create coalitions and collaborate on common treatment projects (for instance, building common water treatment plants) in order to save on costs of achieving environmental targets.In our paper, we focus on cases in which, in order to achieve the target, all polluters must contribute to certain projects to reduce pollution, which could be an Pol. J. Environ. Stud. Vol. 26, No. 4 (2017), [1701][1702][1703][1704][1705][1706][1707][1708][1709][1710][1711][1712][1713][1714] Original Research Coalition Projects to Cut Back Costs of Cleaning Recreational Water Bodies:The Case of Lake Rozkoš AbstractThis paper presents the application of an optimization model developed for Lake Rozkoš, which is located in a sub-basin of the Elbe River basin in Bohemia. Two scenarios for achieving environmental targets (required status of the lake water) were formulated by specialists, together with an assessment of the investment and operating costs of the projects. The optimal solution (investment program) for 41 pollutermunicipalities, where 166 coalitions can be considered (41 individual and 125 joint wastewater treatment plants), was computed. The results suggest that the modelling method presented in this paper has the potential to increase the role of economic considerations in the early stages of planning and decision-making about water treatment programs. In this case, more than 20% of the costs could be saved when selected joint wastewater treatment plants are realized. The approach has the potential to contribute to increasing costeffectiveness of allocation of financial sources from national and European Union sources.Keywords: water pollution, abatement costs, cost-effectiveness, optimization, reverse combinatorial auctions *e-mail: sauer@vse.cz DOI: 10.15244/pjoes/68888 1702 Šauer P., et al. individual project or a common project for two or more polluters. Significant (i.e., almost zero) phosphorus emission reduction to avoid algae and blue-green algae (Cyanobacteria) in recreational and drinking water reservoirs are typical cases of such scenarios.Alternative approaches could be used for cal...

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Section: The Optimum Computation Modelmentioning

confidence: 99%

Coalition Projects to Cut Back Costs of Cleaning Recreational Water Bodies: The Case of Lake Rozkoš

Šauer¹,

Fiala²,

Dvořák³

et al. 2017

Pol. J. Environ. Stud.

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“…Scott et al 2004) large scale P recycling from waste water is difficult at, least in the shortterm. It requires major investments and careful treatment systems design (Gengenbach and Weikard 2012).…”

Section: Management Implications Along the P Chainmentioning

confidence: 99%

Phosphorus recycling and food security in the long run: a conceptual modelling approach

Weikard

2016

Food Sec.

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Food security for all is a global political goal and an outstanding moral concern. The common response to this concern is agricultural intensification, which includes among other things increasing inputs of fertilisers. The paper addresses the fact that phosphorus (P) is essential for agricultural production but large and increasing amounts of P fertilisers stem from depletable mines. This raises sustainability concerns and the possibility of long-term food insecurity. The paper analyses three scenarios for global phosphorus extraction and recycling under discounted utilitarianism. First, for a benchmark scenario without recycling, food security will inevitably be violated in the long run. Second, if we introduce P recycling, food security can be maintained but food production falls over time and approaches a minimum level just sufficient to feed the global population. Third, a sustainable (i.e. non-declining) path of food production is feasible. Compared to just maintaining a minimum level of food production the sustainable path requires greater recycling efforts. Recycling efforts are increasing over time but the total discounted costs are finite and, hence, sustainable food production seems feasible even if it depends on depletable phosphate mines.Keywords Phosphorus depletion . Food security . Phosphorus recycling . Sustainable food production Depletable phosphate mines: impacts for long-run food securityThe well-being of about one billion people is threatened by hunger and food insecurity (FAO 2009). This is arguably a moral disaster and a poor performance of our social and economic systems on the local and the global scale. But even worse, the efforts towards food security are thwarted by population growth and increasing scarcity of agricultural inputs. Notwithstanding efforts to improve food security governance (Pereira and Ruysenaar 2012) a common strategy towards global food security is agricultural intensification with increasing inputs of fertilisers, mainly nitrogen (N), potassium (K) and phosphorus (P) to increase yields (Pinstrup-Andersen and Pandya-Lorch 1998;Baldos and Hertel 2014; PinstrupAndersen 2014). While N fertilisers can be produced from atmospheric nitrogen (using energy), K and P fertilisers are extracted from depletable mines. While K is relatively abundant, P is more limited (Scholz and Wellmer 2013). Although the stocks of rock phosphate, the main source of mineral P fertilizers, are difficult to assess, there is a growing concern that mines might be depleted within a century (Steen 1998;Cordell et al. 2009;Smit et al. 2009;Keyzer 2010;Cordell and White 2015). Although other studies expect sufficient availability beyond the 21st century (van Vuuren et al. 2010;Koppelaar and Weikard 2013), the fact remains that rock phosphate is a depletable resource.1 This underlines the need to develop effective and low cost recycling options beyond the application of animal manure and composted organic wastes, the cheap options that are widely applied. Cordell et al. (2011) provide an over...

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An IUWM incorporated model to improve water supply reliability in intermittent and no service areas

Mohapatra

Tiwari

et al. 2022

Resources, Conservation and Recycling

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Modelling the urban water chain: Incentives and cost recovery in wastewater treatment in developing countries

Cited by 4 publications

References 23 publications

Coalition Projects to Cut Back Costs of Cleaning Recreational Water Bodies: The Case of Lake Rozkoš

Coalition Projects to Cut Back Costs of Cleaning Recreational Water Bodies: The Case of Lake Rozkoš

Phosphorus recycling and food security in the long run: a conceptual modelling approach

An IUWM incorporated model to improve water supply reliability in intermittent and no service areas

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