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Purpose <p>This study investigates the environmental impacts associated with green bean production by comparing three distinct scenarios. Two scenarios involve composts created from olive mill wastewater (OMW) in combination with by-products from the sugar industry, specifically sugar beet pulp (SBP) and sugarcane bagasse (SB) resulting in the composts SBPO and SBO. The final scenario utilises mineral fertiliser (MF).</p> Methods <p>The environmental impacts of green bean production under the specified treatments are assessed using the life cycle assessment (LCA) framework. The functional unit is defined as 1&#xa0;kg of green beans. The analysis focuses on the environmental credits obtained by valorizing by-products from the sugar and olive sectors. This valorization has the potential to significantly reduce dependence on mineral fertilizers and enhance carbon sequestration in the soil, benefiting both industries. Environmental impacts are assessed using OpenLCA software.</p> Results <p>The results show that SBPO compost outperforms both SBO and MF, having the lowest environmental impact in 11 out of the 16 categories assessed in green bean production. In olive oil production, the SBPO compost leads to the most significant reduction in emissions, providing a substantial environmental benefit for this industry. In the sugar industry, the SBO compost is recognized as the most effective alternative, significantly lowering the overall environmental impact of sugar production from sugarcane.</p> Conclusion <p>SBPO compost reduces environmental impacts in green bean production and benefits both the olive oil and sugar industries, offering a sustainable alternative to mineral fertilisers.</p> Graphical Abstract <p></p>

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Life Cycle Assessment of Co-Composted Sugar By-Products and Olive Mill Wastewater for Green Bean (Phaseolus vulgaris) Production: Environmental Benefits for Olive Oil and Sugar Productions

  • 期刊论文

  • 发表日期：

    2025年8月9日

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  • L. EL Joumri,
  • N. Labjar,
  • A. Halhaly,
  • H. Laouane,
  • A. Zouahri,
  • H. Nasrellah,
  • H. Labjar,
  • S. EL Hajjaji

摘要

Purpose

This study investigates the environmental impacts associated with green bean production by comparing three distinct scenarios. Two scenarios involve composts created from olive mill wastewater (OMW) in combination with by-products from the sugar industry, specifically sugar beet pulp (SBP) and sugarcane bagasse (SB) resulting in the composts SBPO and SBO. The final scenario utilises mineral fertiliser (MF).

Methods

The environmental impacts of green bean production under the specified treatments are assessed using the life cycle assessment (LCA) framework. The functional unit is defined as 1 kg of green beans. The analysis focuses on the environmental credits obtained by valorizing by-products from the sugar and olive sectors. This valorization has the potential to significantly reduce dependence on mineral fertilizers and enhance carbon sequestration in the soil, benefiting both industries. Environmental impacts are assessed using OpenLCA software.

Results

The results show that SBPO compost outperforms both SBO and MF, having the lowest environmental impact in 11 out of the 16 categories assessed in green bean production. In olive oil production, the SBPO compost leads to the most significant reduction in emissions, providing a substantial environmental benefit for this industry. In the sugar industry, the SBO compost is recognized as the most effective alternative, significantly lowering the overall environmental impact of sugar production from sugarcane.

Conclusion

SBPO compost reduces environmental impacts in green bean production and benefits both the olive oil and sugar industries, offering a sustainable alternative to mineral fertilisers.

Graphical Abstract