Environmental performance review and cost analysis of MSW landfilling by baling-wrapping technology versus conventional system

Baldasano, J. M.; Gassó, Santiago; Pérez, Cristina Rivas

doi:10.1016/s0956-053x(03)00087-4

Cited by 29 publications

(19 citation statements)

References 5 publications

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“…They should offer proper information to the public and accurately recognize public preferences for landfill siting. They should then mitigate the negative impact on the environment or the risks that are identified by public preference (Baldasano et al, 2003). When the external costs remain in spite of the above efforts, compensation can be paid to the residents affected by landfills or the host community.…”

Section: Discussionmentioning

confidence: 99%

An estimation of the social costs of landfill siting using a choice experiment

Sasao

2004

Waste Management

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This paper examines public preferences on siting landfills using a choice experiment.A choice experiment is a method that elicits public preferences directly through questionnaires. This paper focuses on possible negative effects of a hypothetical landfill siting on residents who are assumed to live around the landfill. The results of this analysis clearly show that the residents evaluate accepting waste originating from outside their community quite negatively, especially industrial waste originating from the Tokyo Metropolitan Area. Large external costs also are seen for siting landfills near areas that are sources of drinking water. In addition, the results show that the NIMBY syndrome of the residents weakens as the hypothetical landfill site is farther away.Considering three hypothetical siting plans, external costs based on public preferences are estimated. The social costs, which are the sum of the private costs and external costs, are then calculated. The results of the case study indicate that the option with the lowest private cost it is not always the option with the lowest social cost.

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Section: Discussionmentioning

confidence: 99%

An estimation of the social costs of landfill siting using a choice experiment

Sasao

2004

Waste Management

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“…Naturally, only k f ,u ∈ K u , which satisfies the applicability condition, Equation 17, for a given p l , is considered. The formula from Equation (20) means that the smaller q is, i.e., the smaller k f ,u is, the bigger the resulting robustness margin is. This rule can be confirmed by an inspection of data in the columns of Table 3, for any fixed p l , separately.…”

Section: Robustnessmentioning

confidence: 99%

“…Financial expenditures on the purchase of stretch film constitute a high percentage of the total costs of this technology [12,19]. The decrease in the usage of plastic film means cost reduction, a decrease in working time [9,20], and less damage to the environment. An appropriate choice of the wrapping variables and parameters may guarantee the assumed conservation quality of wrapped bales without increasing the consumption of plastic film [9], especially if the optimal wrapping parameters are applied and the uniform or near-uniform film coverage on the bale's lateral surface is obtained [21].…”

Section: Introductionmentioning

confidence: 99%

“…To reduce film consumption, researchers have incorporated experimental methods; several strategies have been tested for the conventional wrapping method [11,20,22], for the alternative technique of three-dimensional (3D) film wrapping using biaxial rotation of the film applicators [14], and for a polyethylene tying-film system used to replace the typical net wrapping [23]. Simultaneously, a limited number of studies have been concerned with model-based optimization of film consumption by an appropriate choice of the film and wrapping process parameters.…”

Section: Introductionmentioning

confidence: 99%

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Optimal and Robustly Optimal Consumption of Stretch Film Used for Wrapping Cylindrical Baled Silage

Stankiewicz¹

2019

Agriculture

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A conventional method for wrapping round bales of agricultural materials by wrappers with a rotating table or with rotating arms is considered. In contemporary agriculture, the demand for minimal consumption of the film used to wrap bales is very high, in order to apply this method with lower cost and less damage to the environment. A combined model-based problem of such a design, focusing on the width of stretch film and the overlap between adjacent film strips that minimizes film consumption, was mathematically formulated and solved. It was proven that the complete set of optimal film widths is defined by a simple algebraic equation described in terms of film, bale, and wrapping parameters. The optimal overlap ratios were found to be irreducible fractions in which the dividend is the divisor minus one; however, only the first three factions, 1 2 , 2 3 , and 3 4 , are practically significant. Next, the robustness to disturbances in the functioning of an actual bale wrapper, which leads to overlap ratio uncertainty, is examined. It was shown that, unfortunately, the optimal film widths applied together with the optimal overlaps do not provide any robustness to overlap variations. To overcome this inconvenience, the problems of a choice of the best commercially available film width guaranteeing minimal film consumption or maximal tolerance on the overlap uncertainty were formulated and solved. A new algorithm for a robust design of wrapping parameters was developed, motivated, and numerically verified to achieve a trade-off between satisfactory robustness and low film usage. For the resulting wrapping parameters, near-optimal film usage was achieved; the relative errors of the minimal film consumption approximation did not exceed 4%. It was proven that for the overlap, slightly more than 50%, i.e., 51% or 52%, provides both optimality and robustness of the overlap over disturbances, which are ensured regardless of the number of film layers. Moreover, it was found that for these overlaps and for the commercially available film widths selected according to the algorithm, the film consumption was more than twice as small than the film usage for exactly 50% overlap, if the actual overlap was smaller than pre-assumed. Similarly, an overlap of slightly more than the commonly used 67% will result in about 30% to 40% reduction in film usage in the presence of unfavorable disturbances, depending on the number of film layers and wrapping parameters.

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“…Compared to typical SWM approaches optimizing the operation of a certain SWM facility or the treatment and disposal of a certain solid waste type [e.g. 3,4], the ISWM approach analyses, optimizes and manages the SWM practices from a holistic perspective with considering the full array of solid waste types and integration patterns among different SWM facilities throughout the entire life of SWM process [5]. Therefore, the ISWM approach shows a higher applicability in the real-world SWM practices.…”

Section: Introductionmentioning

confidence: 99%

Integrated Solid Waste Management System Design under Uncertainty

Xiong

Wang

2015

Proceedings in Adaptation, Learning and Optimization

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Abstract. Solid waste management (SWM) has become one of the priority issues to decision makers in modern municipalities. This paper proposes a life cycle assessment-based (LCA-based) two-stage mixed-integer stochastic programming model for an integrated solid waste management (ISWM) system design. Different from previous models that commonly focus on improving the overall performance of an ISWM system, the proposed model considers the sustainability of each involved individual agent within the complex system. In addition, the proposed model simultaneously considers both internal and external uncertainties during the ISWM system design. The simulation results show that the proposed model can help decision makers identify what the optimal ISWM system design under uncertainties is and how uncertainties influence the optimal ISWM system design. The model comparison shows that considering individual agent sustainability during the ISWM system design process can help enhance the system stability under uncertain circumstances.

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Environmental performance review and cost analysis of MSW landfilling by baling-wrapping technology versus conventional system

Cited by 29 publications

References 5 publications

An estimation of the social costs of landfill siting using a choice experiment

An estimation of the social costs of landfill siting using a choice experiment

Optimal and Robustly Optimal Consumption of Stretch Film Used for Wrapping Cylindrical Baled Silage

Integrated Solid Waste Management System Design under Uncertainty

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