After collection, which is the correct order of steps involved in resource recovery?

The correct order of steps involved in resource recovery is size reduction, separation, recovery, and utilization.

Size reduction is the first crucial step, as it involves breaking down materials into smaller, manageable pieces. This process enhances the efficiency of subsequent operations because smaller particles often provide a larger surface area for interactions involved in the following steps.

After size reduction, separation comes into play. This step is vital to identify and segregate distinct materials that can be recovered. For example, separating metals from plastics is crucial for the recycling process, as different materials require different processing methods.

Once materials have been separated, the recovery phase occurs. During this step, valuable resources such as metals, plastics, and glass are extracted from the waste stream for future use. Recovery focuses on reclaiming materials that can be recycled or repurposed.

Lastly, utilization involves the practical application of the recovered materials. This step ensures that the recovered resources are put to use in new products or processes, thereby completing the resource recovery cycle and contributing to sustainability efforts.

This sequence reflects a logical approach to maximize resource recovery efficiency and effectiveness, thus aligning with best practices in waste management and environmental health.