Synergy between industry and agriculture: Techno-economic and life cycle assessments of waste recovery for crop growth in glasshouses
Synergy between industry and agriculture: Techno-economic and life cycle assessments of waste recovery for crop growth in glasshouses
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DOI：
10.1016/j.jclepro.2023.139650
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发表时间：
2023-11
影响因子：
11.1
通讯作者：
Lewis J. McDonald;Ariane S.S. Pinto;Muhammad Naveed Arshad;Rebecca L. Rowe;Iain Donnison;Marcelle McManus
中科院分区：
文献类型：
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作者：
Lewis J. McDonald;Ariane S.S. Pinto;Muhammad Naveed Arshad;Rebecca L. Rowe;Iain Donnison;Marcelle McManus
农业-工业系统中的受控环境农业，其中二氧化碳、热量和其他废物被回收或再循环，具有潜在的经济可行性，是一种环境友好的方法。然而，这种方法需要仔细探索，以确保环境和经济效益最大化。通过稳健的不确定性和敏感性分析，应用技术经济评估和生命周期评估评估了温室生产农作物(西红柿和大麻)和回收工业废物(如热能和二氧化碳)的协同作用。对于每种作物，比较了两种情景，线性情景评估了没有废物回收的原材料的使用，而循环情景捕获了行业流程，并在温室中重复使用或回收，从而避免了原材料消耗。循环做法对这两种作物的全球变暖潜力产生了净效益，每年可捕获高达5万千克的二氧化碳作物生物量，并提供具有竞争力的产品价格。分析表明，与线性系统相比，循环运行条件可以将盈亏平衡产品的销售价格降低近一半，并可封存高达约500千克二氧化碳/平方米的温室。未来对这一满足英国番茄市场需求的杰出战略的投资可能会导致低成本产品和负的CO2eq。通过减少这些产品的进口来减少排放。此外，由于废物管理阶段、化肥和农药使用的高度影响，其他影响类别的得分可能没有全球变暖潜力那么有利。
Controlled-environment agriculture in agro-industrial systems, where carbon dioxide, heat, and other wastes are recovered or recycled, has potential to be an environmentally friendly approach with economic feasibility. However, such approaches need careful exploration to ensure that environmental and economic benefits are maximised. Techno-economic, and life cycle assessments were applied to evaluate the synergy of producing crops (tomato and hemp) and recovering industrial wastes (e.g., heat and carbon dioxide) in glasshouses with robust uncertainty and sensitivity analyses. For each crop, two scenarios were compared, linear scenarios evaluated the use of raw materials with no waste recovery whereas circular scenarios captured industry flows and reused or recycled them in the glasshouse- avoiding raw materials consumption. Circular practices had a net benefit on the global warming potential for both crops, capturing up to 50,000 kg/y of CO2in crops biomass and providing competitive product prices. The analysis showed that circular operational conditions can reduce, by almost half, the break-even product selling prices and sequester up to, approximately, 500 kg CO2eq./m2of glasshouse if compared to linear systems. Future investments in this outstanding strategy to supply the United Kingdom's market demand of tomatoes could lead to a low-cost product and negative CO2eq. emissions by mitigating the importation of these products. Alongside, other impact categories scores may not be as favourable as the global warming potential, due to high impact of the waste management phase, chemical fertilisers, and pesticides utilisation.