Affiliation:
1. Municipal Waste Treatment Plant in Marszów, Żary, Poland
2. Institute of Environmental Engineering, University of Zielona Góra, Zielona Góra, Poland
Abstract
Currently, the Stabilized Organic Fraction (SOF) 0–80 mm separated from the municipal waste stream is sent in its entirety to landfill in the mechanical-biological treatment plants operating in Poland. Such action does not align with the adopted EU strategy focused on waste management in the circular economy. This study aimed to assess the technical feasibility of the process of purification of mineral fractions with a grain size of 10–80 mm separated from SOF on a technological installation designed for glass recovery, built at the Marszów Plant. In terms of material, mineral fractions are a mixture of stones, rubble and glass, contaminated with various components, mainly organic. In 2020, the glass recovery installation was expanded with an innovative process of gravity separation to separate mineral fraction from SOF with the use of a jigging machine. A pulse jig used in the mining industry for coal enrichment processes was used for the first time in municipal waste management. The installation allows for the recovery of between 71.1 and 96.6% of mineral fractions contained in the input (84.8 ± 9.5% on average). The proportion of organics, plastics and other impurities in the waste is 4.1 ± 2.1% of the fraction mass. The process consumed water at an average rate of 0.34 ± 0.10 m3 tonnes−1 of treated waste and generated 0.26 ± 0.09 m3 tonnes−1 of wastewater. Electricity consumption averaged 1.20 kWh tonne−1 input.
Subject
Pollution,Environmental Engineering
Cited by
1 articles.
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