Designing an Efficient Optimization System to Maximize the Total Value of Reverse Logistics in Waste Management

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by: Gerhard-Wilhelm Weber, Erfan Babaee Tirkolaee and Alireza Goli


- Uncontrolled urban expansion and the massive increase in urban populations have led to a vast amount of consumption and different types of waste generation over the past years.

- In 2012, various cities in the world generated 1.3 billion tons of solid waste, equivalent to 1.2 kg per person per day.

- It is expected that annual waste generation rate will reach 2.2 billion tons by 2025, accordingly.

- This amount of waste generation definitely leads to an increase in the necessary funds for collection, transportation, processing and disposal operations, which contains a huge amount of fixed/variable costs (Tirkolaee et al., 2020).

- These operational processes must be done within shortest possible time to prevent from spread of potential contamination and infections.

- The main social aspects include citizens’ satisfaction and creating job opportunities at recovery/recycling facilities.

- A bi-objective model is proposed to design an efficient waste management system for maximizing the Total Value of Reverse Logistics and maximizing the total job opportunity.

- Environmental pollutions are studied as penalty costs in the budget constraint.

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