Processing lines can be called upon to perform quite varied tasks. The composition of the waste, country-specific criteria and legal mandates are just some of the planning parameters. Especially mixed material streams require effective and efficient plant technology that takes into account the composition of the input material and the quality requirements of the secondary material markets. Komptech develops and sells comprehensive solutions for the highly efficient treatment of these waste streams. In this field, Komptech can point to reference projects in India, Ghana, Indonesia and Mexico.
Reducing landfilling by orders of magnitude
Residential waste from private households and similar waste streams from commerce and industry typically contain plastics, paper, glass, metal, and organic components in varying proportions. The proportion of organics in mixed residential waste is high in many countries, from 30 to 60 percent. The clean separation of these fractions is an important step in achieving a circular economy. Depending on the situation, this organic component can be used for composting or turned into energy in biogas plants. This also reduces the amount of land used for landfilling, and especially the emissions of climate-harming landfill gases.
Systems technology as the foundation for high recycling rates
The standard process steps in a waste processing line are shredding, separation of metals, separation of two- and three-dimensional items, and mechanical and manual sorting. Depending on the makeup of the waste stream, before separation there may be an additional organic fines separation step using a drum screen. Within the overall process sequence there are many factors that can be adjusted to influence the quality of the output. For example, by means of the choice of shredder teeth or careful regulation of ballistic separation, defined grain sizes can be obtained. This noticeably improves the separation precision of the fractions.
Processing lines for mixed residential waste need to be designed in such a way that the process dynamically adapts to changing conditions, to become recyclables-oriented and efficient. As one of the international technology leaders in machines and systems for the treatment of solid waste, Komptech designs plants that perform specific recycling tasks. Gottfried Reither, Director Komptech System Engineering: “If you can avoid errors in the planning stage, ultimately all of the components of a system come together for an ideal fit. We design and dimension our plants to meet individual requirements. We go the entire way step by step together with the customer.”