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Application of q-rung orthopair fuzzy based SWARA-COPRAS model for municipal waste treatment technology selection

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Abstract

Despite several methods available for the treatment of solid wastes, the management of municipal solid waste is still a crucial and complex process. The available methods for waste treatment range from advanced to conventional techniques. The identification of a proper method for municipal solid waste management involves several techno-eco and environmental considerations. To solve the real-world problems of municipal waste management, the research proposed an integrated q-rung orthopair fuzzy number-based stepwise weight assessment ratio analysis-complex proportional assessment (SWARA-COPRAS) mathematical model to rank the waste treatment techniques. The research aimed to develop a systematic approach for a suitable selection of waste treatment methods. Ten (10) different alternatives for waste treatments were ranked against seven (07) different techno-eco and environmental criteria. The ambiguity in the decision was handled by the q-rung orthopair fuzzy numbers. The proposed integrated model has identified upcycling and recycling of waste having priority values of 100% and 99.9%, respectively, as the suitable practices for the successful management of generated solid wastes, whereas landfilling has obtained a minimum priority value of 66.782% and, therefore, is least preferable for waste management. The ranking of the alternatives followed the sequence as upcycling > recycling > pyrolysis > hydrolysis > biotechnological > core plasma pyrolysis > incineration > composting > gasification > landfilling. The comparison between the rankings of the proposed model with other techniques has revealed that the values of Spearman’s rank correlation coefficient are in the range of 0.8545 to 0.9272; thereby, the robustness of the proposed model is verified. Sensitivity analysis for the criteria weight has showed that the ranking results are influenced significantly by the change in criteria weights and suggested that an accurate estimation of the criteria weight is decisive in determining the overall ranking of the alternative. The study has provided a framework for decision-making in the technology selection for solid waste management.

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Abbreviations

AHP:

Analytical hierarchy process

ARAS:

Additive ratio assessment

BCO:

Bee colony

BMO:

Bonferroni mean operator

BWM:

Best worst method

COPRAS:

Complex proportional assessment

CRITIC:

Criteria importance through intercriteria correlation

DM:

Decision maker

GHG:

Greenhouse gases

IoT:

Internet of things

MAUT:

Multi-attribute utility theory

MCDM:

Multi-criteria decision making

MIP:

Mixed-integer programming

MOORA:

Multi-objective optimization on the basis of ratio analysis

MSW:

Municipal solid waste

q-ROPFNs:

q-rung orthopair fuzzy numbers

q-ROPFWBMO:

q-rung orthopair fuzzy weighted Bonferroni mean operator

SA:

Sensitivity analysis

SRCC:

Spearman’s rank correlation coefficient

SWARA :

Stepwise weight assessment ratio analysis

TOPSIS:

Techniques for order performance by similarity to ideal solution

WASPAS:

Weighted aggregated sum product assessment

WPM:

Weighted product method

WSM:

Weighted sum method

WtE:

Waste-to-energy

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Acknowledgements

The author would like to thank the National Institute of Technology (NIT) Agartala for providing the resources in conducting this research.

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Ashish Soni: conceptualization, data curation, and writing original draft of the manuscript.

Pankaj Kumar Das supervised, edited, and provided resources and facilities for this work.

Sanjay Kumar helped in the formal analyses of the research.

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Correspondence to Ashish Soni.

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Highlights

• An integrated q-rung orthopair fuzzy number-based SWARA-COPRAS model for ranking of waste treatment facilities.

• Techno-eco and environmental considerations in solid waste management.

• Comparative and sensitivity analysis of the SWARA- COPRAS model.

• Capacity to handle impreciseness and uncertainty in making a decision.

• A reliable mathematical model for municipal solid waste management.

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Soni, ., Das, P.K. & Kumar, S. Application of q-rung orthopair fuzzy based SWARA-COPRAS model for municipal waste treatment technology selection. Environ Sci Pollut Res 30, 88111–88131 (2023). https://doi.org/10.1007/s11356-023-28602-w

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