北京市北神树填埋场垃圾堆体总氮、总磷和总有机碳含量沿深度变化研究

发布时间：2018-05-11 07:58

本文选题：垃圾填埋场 + 营养元素　；参考：《环境工程》2017年11期

【摘要】：营养元素是微生物生命活动赖以持续的物质之一。垃圾在降解过程中碳、氮、磷等营养元素的含量变化是堆体内微生物活动以及稳定化程度的重要表征。选择临近封场的北京市北神树垃圾卫生填埋场为研究对象,采用现场打井采样和室内分析的方法得到了不同深度(对应不同填埋年龄)垃圾中总氮、总磷和总有机碳的含量。结果表明:新鲜垃圾(填埋1~2年)与陈腐垃圾(填埋3~12年)中3种元素含量相差较大,总氮、总磷和总有机碳含量分别从4.91%、2.54%和37.67%变化为9.67%、2.92%和10.95%。陈腐垃圾中营养元素含量沿深度变化不大,3种元素变化范围分别为8%~11%、2%~4%和5%~16%。说明填埋3年后的垃圾能基本实现稳定。此外,陈腐垃圾中总有机碳与总磷含量变化呈现显著的相关性,而总有机碳与总氮含量、总氮与总磷含量并无显著相关。
[Abstract]:Nutrient elements are one of the substances on which microbial life activities are sustained. The changes in the content of nutrient elements such as carbon, nitrogen and phosphorus in the process of degradation are important characterization of microbial activity and stability in the reactor. The selection of nearby sealed landfill of Beijing North Shenshu landfill is used as the research object. The contents of total nitrogen, total phosphorus and total organic carbon in different depths (corresponding to different landfill age) were obtained by internal analysis. The results showed that the contents of 3 elements in the fresh waste (landfill 1~2 year) and the aged refuse (landfill 3~12 year) were different, the total nitrogen, total phosphorus and total organic carbon content were from 4.91%, 2.54% and 37.67% to 9.67%, 2.92%, respectively. The content of nutrient elements in 10.95%. aged refuse changed little along the depth, and the change range of the 3 elements was 8%~11%, 2%~4% and 5%~16%. showed that the garbage can be basically stable after 3 years of landfill. In addition, the total organic carbon and total phosphorus content in the aged refuse showed significant correlation, while the total organic carbon and total nitrogen content, total nitrogen and total phosphorus content were the same. There is no significant correlation.

【作者单位】：北京大学深圳研究生院环境与能源学院;北京环境卫生工程集团有限公司;北京大学环境科学与工程学院北京市新型污水深度处理工程技术研究中心;
【基金】：高等学校博士学科点专项科研基金(20130001110042) 国家科技支撑计划项目(2011BAJ07B04)
【分类号】：X705

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