含生物质炭城市污泥堆肥中溶解性有机质的光谱特征_闫金龙.pdf

中国环境科学 2014,34(2) ：459~465 China Environmental Science 含生物质炭城市污泥堆肥中溶解性有机质的光谱特征 闫金龙 1,江 韬 1,2,*,赵秀兰 1,2,魏世强 1,2,王定勇 1,2,李璐璐 1,郭 念 1,孙文彬 1 (1.西南大学资源环境学 院,重庆 400716 ；2.重庆市农业资源与环境研究重点实验室,重庆 400716) 摘要： 以外源添加生物质炭的城市污泥堆肥过程中溶解性有机质(DOM)为研究对象,讨论了其紫外-可见和荧光光谱特征变化.结果表明: 与对照组相比,外源添加生物质炭的处理其堆肥 DOM 的芳香性和腐殖化程度更高,有利于提高堆肥的腐熟度,且外源添加花生壳炭的处理 较添加小麦秸秆炭的处理更有利于堆肥腐熟度的提高.外源添加花生壳炭的处理在堆肥 21d 后,其堆肥腐熟度可能达到峰值,而外源添加小 麦秸秆炭的处理其堆肥腐熟度则随着堆肥时间的进行而增加.对照组和处理组堆肥 DOM 的FI0.7,BIX0.8,表明其来源为自生源,可能与微 生物对有机物的降解有关.因此,通过对城市污泥堆肥过程中 DOM 的光谱特征分析,能较好地评估城市污泥堆肥腐熟度的情况. 关键词：生物质炭；堆肥；溶解性有机质(DOM) ；紫外光谱；荧光光谱 中图分类号：X705 文献标识码：A 文章编号：1000-6923(2014)02-0459-07 Spectral characteristics of dissolved organic matter in co-composting process of municipal sludge with biochar. 1 1,2* 1,2 1,2 1,2 1 1 YAN Jin-long , JIANG Tao , ZHAO Xiu-lan , WEI Shi-qiang , WANG Ding-yong , LI Lu-lu , GUO Nian , SUN Wen-bin1 (1.College of Resources and Environment, Southwest University, Chongqing 400716, China ；2.Chongqing Key Laboratory of Agricultural Resources and Environment, Chongqing 400716, China). China Environmental Science, 2014,34(2) ：459~465 Abstract ：Changes in the UV-visible and fluorescence characteristics of DOM from the co-composting process of municipal sludge with two types of biochars were discussed. The results showed the aromaticity and humification of DOM from the co-composting with biochars significantly increased compared with control, which indicated in favor of improving the maturity of compost. The treatment with biochar from peanut shell showed the highest maturity, followed by wheat straw biochar. After 21days, compost treated with biochar from peanut s