生活垃圾堆肥水溶性有机物荧光特性变化  

Fluorescence Spectral Characteristic of Dissolved Organic Matter during Municipal Solid Waste Composting

作　　者：滕险峰[1] 魏自民[2] 

机构地区：[1]黑龙江省农业科学院,哈尔滨150086 [2]东北农业大学生命科学学院,哈尔滨150030

出　　处：《黑龙江农业科学》2008年第6期48-51,共4页Heilongjiang Agricultural Sciences

摘　　要：利用城市生活垃圾进行堆肥,对堆肥前后水溶性有机物的荧光光谱进行分析。结果表明,水溶性有机物发射光谱相对简单,堆肥前在400 nm附近分别形成一个较强的荧光强度峰,而激发光谱与同步扫描光谱则由几个特征峰及肩峰组成。堆肥结束后,水溶性有机物在440 nm新形成一个较强的荧光强度峰;荧光激发与同步扫描光谱主峰的位置也发生明显的改变。对水溶性有机物发射、激发及同步扫描光谱的特征峰进行分析证实,堆肥结束后,水溶性有机物中含有较高的分子缩合度与芳构化程度,并与富里酸类物质相似,表明堆肥产品施入土壤后活性较高。Municipal solid waste （MSW） composting was conducted, and the fluorescence spectral characteristic of dissolved organic matter （DOM） during MSW composting was determined. At initial stage of MSW composting, emission spectroscopy of DOM was relative simple, and exhibited a peak at 400 nm; while exhibited several peaks and shoulder peaks. At final stage of MSW cornposting,DOM emission spectroscopy exhibited a new peak at 440 nm, and the wavelength of main peaks of excitation and synchronous spectroscopy were changed. Analysis of fluorescence emission, excitation, and synchronous spectroscopy of DOM indicated, there were a lot of substances with strong degree of molecule condensation and aromatization,and similar to fulvic acid.

关 键 词：生活垃圾 堆肥 水溶性有机物 荧光光谱 

分 类 号：X705[环境科学与工程—环境工程]