New Approach for Calculation of Recycling Rates of Municipal Waste in the Circular Economy (CE)
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Aug 04, 2022
About this article
Published Online: Aug 04, 2022
Page range: 125 - 136
Received: Nov 13, 2021
Accepted: Nov 24, 2021
DOI: https://doi.org/10.21307/acee-2021-036
Keywords
© 2021 Aneta DOROSZ et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Figure 1.
![Investment gap and investment outlays in the treatment of municipal waste. Source: Own study based on data from KPGO 2022 [18]](https://sciendo-parsed.s3.eu-central-1.amazonaws.com/6470707b83f1392090d6986a/j_acee-2021-036_fig_001.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=AKIA6AP2G7AKOUXAVR44%2F20250910%2Feu-central-1%2Fs3%2Faws4_request&X-Amz-Date=20250910T113219Z&X-Amz-Expires=3600&X-Amz-Signature=6ebe6af4725bc369b9555ddabf0d6b4922b1f5a26ace784420be21e46dfe5fcf&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject)
Figure 2.
![Tendency of changes in the recycling rate [%] in the adopted variants. Source: Own study](https://sciendo-parsed.s3.eu-central-1.amazonaws.com/6470707b83f1392090d6986a/j_acee-2021-036_fig_002.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=AKIA6AP2G7AKOUXAVR44%2F20250910%2Feu-central-1%2Fs3%2Faws4_request&X-Amz-Date=20250910T113219Z&X-Amz-Expires=3600&X-Amz-Signature=bd01c680c9d561b921fb046d1943b0992c922ba35a4e8e9b3fda59d2b61ace44&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject)
Recycling rates [%] in the analyzed scenarios in two variants
| Description | Large municipalities Recycling rate [%] | Medium municipalities Recycling rate [%] | Small municipalities Recycling rate [%] | Average value of the recycling rate [%] | ||
|---|---|---|---|---|---|---|
| Scenario number | Variant Number | |||||
| Scenario 1 | Variant I | 12.96 | 15.08 | 12.22 | 13.42 | 16.65 |
| Variant II | 18.48 | 21.20 | 19.94 | 19.87 | ||
| Scenario 2 | Variant I | 21.74 | 17.37 | 16.52 | 16.52 | 22.95 |
| Variant II | 31.03 | 24.12 | 26.90 | 26.90 | ||
| Scenario 3 | Variant I | 29.38 | 33.12 | 18.26 | 18.26 | 33.55 |
| Variant II | 42.72 | 47.99 | 29.81 | 29.81 | ||
Summary of scenarios and determination of the patterns of the recycling rate in the developed variants
| Scenario number | Scenario description | Determining the pattern – variant I | Determining the pattern – variant II |
|---|---|---|---|
| Scenario 1 | the recycling rate is calculated as the ratio of the weight of paper, metal, plastic and glass (PMPG) prepared for re-use and recycling to the weight of total municipal waste generated | ||
| Scenario 2 | the recycling rate is calculated as the ratio of the weight of paper, metal, plastic and glass waste prepared for re-use and recycling, and bio-waste transferred to the recycling process (input into the recycling process) to the total weight of municipal waste generated | ||
| Scenario 3 | the recycling rate is calculated as the ratio of the weight of paper, metal, plastic and glass waste and bio-waste collected and collected selectively in municipal waste management systems to the total weight of municipal waste generated |
Recycling rates [%] in the analysed scenarios according to two variants for GMK in 2018-2020
| Description | 2018 | 2019 | 2020 | |
|---|---|---|---|---|
| Recycling levels achieved by the City of Krakow | 42.00 | 55.92 | 69.49 | |
| Scenario number | Variant Number | Recycling rate [%] | Recycling rate [%] | Recycling rate [%] |
| Scenario 1 | Variant I | 12.78 | 14.04 | 17.35 |
| Variant II | 20.92 | 22.88 | 26.91 | |
| Scenario 2 | Variant I | 18.14 | 19.67 | 27.52 |
| Variant II | 29.69 | 32.05 | 42.66 | |
| Scenario 3 | Variant I | 32.20 | 34.26 | 40.55 |
| Variant II | 52.71 | 55.83 | 62.88 | |