农业废弃物生物质炭化技术及其应用进展

Reviews on the application of carbonization technology of agricultural waste biomass

[目的]了解农业废弃物生物质炭化的应用现状,拓展农业废弃物资源化利用的新途径。[方法]以文献综述的形式概述农业废弃物生物质炭化技术及其应用的进展。[结果]不同炭化技术及工艺条件对生物质炭的pH值、元素组成、比表面积、孔隙结构和表面官能团均有一定影响。目前生物质炭在土壤改良、温室气体减排、污染土壤修复以及作为新型肥料载体等农业环境修复保护领域取得一定成效。[结论]生物质炭在农田改良、增汇减排等方面已经取得初步成果,但长期应用效果还有待进一步研究。

[Purpose] To understand the current application status of carbonization of agricultural waste biomass, it is beneficial to expand the use of agricultural waste resources. [Method] The research progress and the application of carbonization technology of agricultural waste biomass were summarized in the form of a literature review. [Result] Different carbonization methods and conditions influence the pH, elementcomposition, specific surface area, pore structure and surface functional groups of biochar. At present, biochar is used in the field for soil improvement, reduction of greenhouse gases emissions, remediation of contaminated soil and application of new fertilizer carriers. [Conclusion] Although, biochar has achieved its preliminary results in soil improvement and reduction of greenhouse gas emissions, but the long-term impact of its application needs to be studied in the future.