Application of spherical fuzzy-DEMATEL and ANP methods for barriers analysis of co-management of urban organic waste and human waste: A case study of Phnom Penh Cambodia

• Main Author: Meas, Sychheng
• Format: text
• Language: English
• Published: Animo Repository 2025
• Subjects: Refuse and refuse disposal—Philippines; Environmental management—Philippines; Chemical Engineering; Engineering
• Online Access: https://animorepository.dlsu.edu.ph/etdm_chemeng/22; https://animorepository.dlsu.edu.ph/context/etdm_chemeng/article/1023/viewcontent/Application_of_Spherical_Fuzzy_DEMATEL_and_ANP_methods_for_barrie.pdf
• Institution: De La Salle University

The adverse environmental impact caused by improper waste management are extremely important issue in developing countries. It is essential and advantageous to implement the co-management of urban bio-wastes within a circular economy framework, yet the certain challenges and complexity are involved in incorporating the necessary changes to move from a linear approach to circular thinking. Therefore, it is of utmost importance to understand all potential barriers to successfully perceiving solutions for effectively co-managing bio-waste. This study aims to develop and apply an integrated Spherical Fuzzy-Decision Making Trial and Evaluation Laboratory (SF-DEMATEL) methodology and Analysis Network Process (ANP) to understand the barriers to implementing the co-management of urban organic waste and human waste in Phnom Penn City, Cambodia. SF-DEMATEL is used to achieve the interdependent variables of causal and effect diagram while ANP is used to identify and arrange all criteria dependency networks. The eight potential barriers were identified throughout a literature review prior to validation with thirteen key experts divided into 4 sub-groups (government, development partner, academics, and private companies) who have access to information pertinent to these problematic issues. The SF-DEMATEL and ANP results show that lack of regulatory enforcement and implementation to control the illegal disposal of municipal solid waste and septage waste is perceived the most important barrier which should be firstly addressed to ensure the effective co-management of urban bio-waste. Implications from this study indicate the proposed method could capture both the inherent strength of importance of the barriers and their interrelationship to identify the important barriers that require immediate action in co-managing the said wastes. By understanding the inherent importance of the barriers and the intensity of influence among them, insight from the present study could be materialized into actionable policy recommendations with the vision to achieve SDGs and explore the benefit of a circular economy.