4种生物质炭的制备及其对土壤改良应用  

Preparation of Four Kinds of Biochar and Its Application to Soil Improvement

作　　者：李烙青 阳元娥[1] 林易群 邓庚沂 Li Laoqing;Yang Yuane;Lin Yiqun;Deng Gengyi(Guangdong Industry Polytechnic,Guangzhou 510300,China)

机构地区：[1]广东轻工职业技术学院,广东广州510300

出　　处：《广东化工》2023年第17期46-48,共3页Guangdong Chemical Industry

基　　金：广东大学生科技创新培育专项资金资助项目(pdjh2021b0723)。

摘　　要：本研究以猪粪、鸡粪、水稻秸秆以及玉米秸秆4种生物质为原料采用控温法制备生物质炭。对制备的4种生物质炭的理化性质与结构特征进行了分析,并考察了对土壤理化性质的影响。结果表明,制备的4种生物质炭都呈碱性,8.9<pH<10;禽畜粪便生物质炭的得率、灰分都高于植物秸秆类生物质炭;炭化结构清晰,疏松多孔;4种生物质炭对土壤都有较好的改良作用,相比秸秆类生物质炭,禽畜粪便生物质炭在土壤理化性质的改良方面更具优势。In this study,four kinds of biomass such as pig manure,chicken manure,rice straw and corn straw were used as raw materials to prepare biochar by temperature control method.The physical and chemical properties and structural characteristics of four kinds of biochar were analyzed,and the effects on the physical and chemical properties of soil were investigated.The results showed that the four kinds of biochar were alkaline,8.9<pH<10.The yield and ash content of biomass charcoal from livestock manure were higher than that from plant straw.Carbonized structure is clear,loose and porous.The four biochar have better effects on soil improvement.Compared with straw biochar,livestock manure biochar has more advantages in the improvement of soil physical and chemical properties.

关 键 词：生物质炭 秸秆 禽畜粪便 结构特征 土壤 

分 类 号：TQ[化学工程]