“双碳”目标下农业废弃物资源化实施新路径

New implementation pathways for the resource utilization of agricultural wastes under the goal of carbon peaking and carbon neutrality

“碳达峰”和“碳中和”是我国的重大国家战略,作为第一产业的农业在这一战略目标的实现过程中发挥着至关重要的作用。而农业领域“双碳”目标的推进中农业废弃物的资源化又是重要的一环。本文阐述了农业废弃物除传统的“五料化”利用技术之外的几种资源化新路径,包括将农业废弃物定向转化为高附加值化学品和液体燃料、农业废弃物制备生物炭及其他功能化碳材料、农业废弃物制备可燃气以及农业废弃物制备生物质基可降解塑料等,并简要提出了这些农业废弃物资源化新路径需要进一步提升的问题及在实施过程中如何实现最大程度的碳减排,从而最大程度地促进农业领域“双碳”战略目标的实现。

Carbon peaking and carbon neutrality goals are the significant strategy of China.As the primary industry,agriculture plays a crucial role in the realization process of the goals.Among the advancements towards these goal in the agricultural sector,the resource utilization of agricultural wastes is a vital aspect.This article expounds on several new resource utilization pathways beyond the traditional“five-material utilization”technology of agricultural waste,including the targeted conversion of agricultural wastes into value-added chemicals and liquid fuels,the production of biochar and other functionalized carbon materials from agricultural wastes,the preparation of combustible gases,and the development of biodegradable plastics based on agricultural wastes.It also briefly discusses the issues that need to be further addressed for the improvement of these new resource utilization pathways and how to achieve maximum carbon emission reduction during implementation,thus maximally contributing to the realization of the carbon peaking and carbon neutrality strategic goals in the agricultural sector.