长沙市政污泥-稻壳混合生物炭的性质及其在土壤中的应用  

The Properties of Changsha Municipal Sludge-Rice Husk Mixed Biochar and Its Application in Soil

作　　者：黄升雄 罗伟[1] 粟一峰 何迁 盖淑杰 张宇晟 周智[1] Huang Shengxiong;Luo Wei;Su Yifeng;He Qian;Gai Shujie;Zhang Yusheng;Zhou Zhi(College of Chemistry and Materials Science,Hunan Agricultural University,Changsha 410128,China)

机构地区：[1]湖南农业大学化学与材料科学学院,长沙410128

出　　处：《中国资源综合利用》2020年第11期34-38,共5页China Resources Comprehensive Utilization

基　　金：国家自然科学基金项目(项目编号:51703061);湖南省工程研究中心建设项目的阶段性研究成果之一。

摘　　要：本文研究了长沙市政污泥-稻壳混合生物炭的表面性质、结构特征和重金属含量,并分析了混合生物炭添加对土壤饱和导水性能的影响。结果表明,生物炭表面具有-OH和-COOH,存在微孔结构,含有P、K等元素,8种主要重金属含量低于三级土壤标准,将其添加至土壤中,可显著降低土壤饱和导水率,这就为市政污泥的处理处置提供了一种新方法。In this paper,the surface properties,structural characteristics and heavy metal content of Changsha municipal sludge-rice husk mixed biochar were studied,and the effect of mixed biochar addition on soil saturated water conductivity was analyzed.The results show that the surface of biochar has-OH and-COOH,has a microporous structure,and contains elements such as P and K,the content of 8 major heavy metals is lower than the third-level soil standard,adding it to the soil can significantly reduce the saturated hydraulic conductivity of the soil,which provides a new method for the treatment and disposal of municipal sludge.

关 键 词：市政污泥 稻壳 生物炭 饱和导水率 

分 类 号：S141[农业科学—肥料学]