福建农业科技2024，Vol.55Issue(9)：8-11,4.DOI:10.13651/j.cnki.fjnykj.2024.09.002
番茄秸秆与猪场沼液联合水热炭化对生物炭性质的影响
Effects of Co-hydrothermal Carbonization of Tomato Straw and Pig Slurry on the Properties of Biochar
摘要
Abstract
The use of biomass combined with the hydrothermal carbonization for the preparation of functional biochar products has gradually become a research hotspot.In order to develop the biochar products rich in nutrients,the tomato straw was used as the raw material,and the pure water(T1)and biogas slurry(T2)were used as the liquid medium for hydrothermal carbonization.The change rules of the physicochemical properties and nitrogen release amount of biochar under different carbonization conditions were analyzed.The results showed that the yield of biochar prepared by the hydrothermal method of tomato straw was 30.09%-32.24%.The contents of volatile matter,fixed carbon,total nitrogen and total phosphorus of biochar prepared by the combined carbonization treatment with tomato straw and biogas slurry(T2)were 1.80%,13.00%,5.51%and 14.77%higher than those in the carbonization treatment with water as the liquid medium(T1),but the contents of organic carbon and ash decreased by 0.80%and 17.02%,respectively.The nitrogen release amount of the two types of biochars showed an increasing trend with time.The increase rate of nitrogen release amount in the first 5 hours of biochar prepared by the carbonization treatment with water as the liquid medium(T1)was 18.4%higher than that by the combined carbonization treatment with tomato straw and biogas slurry(T2).关键词
番茄秸秆/沼液/水热炭化/生物炭/氮释放Key words
Tomato straw/Biogas slurry/Hydrothermal carbonization/Biochar/Nitrogen release分类
农业科技引用本文复制引用
董瑞梅,丁雅兰,叶菁,林怡,王义祥..番茄秸秆与猪场沼液联合水热炭化对生物炭性质的影响[J].福建农业科技,2024,55(9):8-11,4.基金项目
福建省科技计划项目(2023S0034) （2023S0034）
福建省人民政府、中国农业科学院"5511"协同创新工程(XTCXGC2021010) （XTCXGC2021010）
福建省财政专项-福建省农业科学院科技创新团队建设项目(CXTD2021009-1). （CXTD2021009-1）
