| Title | Impact of water as raw material on material circularity - A case study from the Hungarian food sector |
|---|---|
| ID_Doc | 22556 |
| Authors | H-Hargitai, R; Somogyi, V |
| Title | Impact of water as raw material on material circularity - A case study from the Hungarian food sector |
| Year | 2023 |
| Published | Heliyon, 9.0, 7 |
| Abstract | Measuring circularity is necessary to prove the feasibility of transforming linear technologies into circular ones. However, most of the circular economic researches consider water only as a medium. Food industry processes are excellent examples of systems that are hard to break free from linearity, albeit not impossible. This paper explores solutions to include water in circularity calculations using a Hungarian poultry processing plant as a case study. Two circular economic indicators, the questionnaire-type Circular Economy Indicator Prototype (CEIP) and the productcentric Material Circularity Indicator (MCI and MCI') and the Water Footprint were examined in detail and modified to fit the needs of assessing circularity with water included as raw material. The calculations were supported by Life Cycle Assessment (LCA). The impact on circularity and the environment were quantified by considering different reuse scenarios. As the results of CEIP show, including water reuse in the technology or recycling for irrigation could increase the indicator values from low to medium-high level of circularity. However, the level of improvement highly depends on the amount of water used. LCA highlighted the significant environmental effects of packaging (<2% of product mass) and the relative benefits of recycling and reuse. The MCI' values (including water as raw material) increased from 0.171 to 0.848 when water demand was reduced by 50% and 100% reused within the processes. This led to a reduction of 76% in the environmental effect. On the other hand, Water Footprint analysis showed that 99% of the water is incorporated in the product itself; therefore, technological water consumption should be treated separately from broiler breeding. The results show that a fairly linear process can be directed towards circularity. However, environmental benefits are not guaranteed with higher circularity points, and recycling may lead to unexpected results. |
| http://www.cell.com/article/S2405844023047953/pdf |
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