Collecting non-hazardous waste is a key part of sustainable waste management, focusing on materials that are non-toxic, non-explosive, and non-harmful to human health and the environment. This practice plays an important role in environmental preservation, preventing soil, water, and air pollution, as well as resource conservation. Non-hazardous waste encompasses a wide range of materials, including paper, cardboard, glass, plastic, certain metals, textiles, wood, and other non-hazardous materials that are subject to recycling, composting, or safe disposal.

Sorting of plastic waste is a crucial step in the recycling process and sustainable waste management. Plastic is one of the most commonly used materials in everyday life, but it is also one of the main sources of environmental pollution when improperly disposed of. Plastic consists of various types of polymers, each requiring a different recycling process. There are different types of plastics such as PET, HDPE, PVC, PP, etc. Therefore, it is important to sort plastic according to its properties to ensure efficient recycling.

Mechanical processing of non-hazardous waste represents a key phase in waste management, aiming to maximize the utilization of resources found in waste, reduce the amount of material disposed of in landfills, and mitigate negative environmental impacts. This technique, used in combination with other waste treatment methods, may involve a series of processes to prepare waste for recycling. In the case of organic waste, mechanical processing includes the composting process.