• 关键词：填埋垃圾  填埋龄  腐殖质分组  稳定化

• 基金项目：上海市科学技术委员会2005年重大专项课题(No.05DZ12003)

• 杨玉江
• 同济大学污染控制与资源化研究国家重点实验室, 上海 200092

• 赵由才
• 同济大学污染控制与资源化研究国家重点实验室, 上海 200092

• 摘要：通过分析上海老港生活垃圾填埋场填埋垃圾的腐殖质组成和光密度,考察了填埋垃圾的腐殖质组成和光学特性随填埋龄的变化规律.研究结果表明,填埋龄在1～14a间的填埋垃圾中腐殖质组分的有机碳绝对含量的波动幅度很大,而腐殖质组分相对含量具有比较明显的变化规律,其中腐殖质总可提取率和w_HA/w_FA比值分别随填埋龄增加呈线性下降和上升的趋势.另一方面,填埋垃圾腐殖质光学特性研究表明,填埋垃圾可提取腐殖质和富里酸组分的E₄/E₆比值随填埋龄变化无明显关系,而胡敏酸的E₄/E₆比值则随填埋龄的增加呈线性下降趋势.因此,填埋垃圾腐殖质的总可提取率、w_HA/w_FA比值以及胡敏酸组分的E₄/E₆比值可有效地表征填埋垃圾和填埋场的稳定化进程.

• Abstract：Aged refuse at Shanghai Refuse Landfill was sampled from the compartments closed from 1991 to 2004. The composition and light density of Humus fractions in age refuses were determined and their relationship with landfill age were studied. The results showed the following: total extraction rate of humic substance and E₄/E₆ ratio of humic acid fraction linearly decreased with landfill age, while HA/FAratio of humic substance linearly increases with landfill age. Then these three parameters can be used as stabilization indexes of aged refuse and closed landfill compartments.

• Key words：aged refuse  landfill age  humus fraction  stabilization

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