Department of Bioresources, Bioproducts Group, National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, Splaiul Independenței nr. 202, Sector 6, 060021 Bucharest, Romania.
Int J Environ Res Public Health. 2023 Jan 23;20(3):2096. doi: 10.3390/ijerph20032096.
The recovery of plant mineral nutrients from the bio-based value chains is essential for a sustainable, circular bioeconomy, wherein resources are (re)used sustainably. The widest used approach is to recover plant nutrients on the last stage of biomass utilization processes-e.g., from ash, wastewater, or anaerobic digestate. The best approach is to recover mineral nutrients from the initial stages of biomass biorefinery, especially during biomass pre-treatments. Our paper aims to evaluate the nutrient recovery solutions from a trans-sectorial perspective, including biomass processing and the agricultural use of recovered nutrients. Several solutions integrated with the biomass pre-treatment stage, such as leaching/bioleaching, recovery from pre-treatment neoteric solvents, ionic liquids (ILs), and deep eutectic solvents (DESs) or integrated with hydrothermal treatments are discussed. Reducing mineral contents on silicon, phosphorus, and nitrogen biomass before the core biorefinery processes improves processability and yield and reduces corrosion and fouling effects. The recovered minerals are used as bio-based fertilizers or as silica-based plant biostimulants, with economic and environmental benefits.
从基于生物的价值链中回收植物矿质养分对于可持续的循环生物经济至关重要，其中资源可以可持续地（再）利用。最广泛使用的方法是在生物质利用过程的最后阶段回收植物养分，例如，从灰烬、废水或厌氧消化物中回收。最佳方法是从生物质生物炼制的初始阶段回收矿物质养分，特别是在生物质预处理阶段。我们的论文旨在从跨部门的角度评估养分回收解决方案，包括生物质加工和回收养分在农业中的应用。讨论了几种与生物质预处理阶段相结合的解决方案，例如浸出/生物浸出、从新型预处理溶剂、离子液体 (ILs) 和深共晶溶剂 (DES) 中回收，以及与水热处理相结合的解决方案。在核心生物炼制工艺之前降低硅、磷和氮生物质中的矿物质含量可以提高加工性能和收率，并减少腐蚀和结垢的影响。回收的矿物质可用作生物基肥料或硅基植物生物刺激素，具有经济和环境效益。
