生活垃圾填埋场作业面恶臭散发率研究 |
摘要点击 4269 全文点击 4804 投稿时间:2013-05-02 修订日期:2013-07-04 |
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中文关键词 垃圾填埋 面源 填埋作业面 恶臭散发率 风洞采样 电子鼻 |
英文关键词 MSW landfill non-point source working area odor emission rate wind tunnel sampler electrical nose |
作者 | 单位 | E-mail | 羌宁 | 同济大学环境科学与工程学院, 污染控制与资源化研究国家重点实验室, 上海 200092 | tj1926@126.com | 王红玉 | 同济大学环境科学与工程学院, 污染控制与资源化研究国家重点实验室, 上海 200092 中国科学院上海应用物理研究所, 上海 201800 | | 赵爱华 | 上海市环境工程设计科学研究院, 上海 200232 | | 袁文祥 | 上海市环境工程设计科学研究院, 上海 200232 | | 邰俊 | 上海市环境工程设计科学研究院, 上海 200232 | | 陈檬 | 同济大学环境科学与工程学院, 污染控制与资源化研究国家重点实验室, 上海 200092 | |
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中文摘要 |
采用风洞采样方式以挥发性有机物、H2S和恶臭浓度为指标研究了生活垃圾填埋堆体类恶臭面源的污染散发率. 结果表明,生活垃圾填埋堆体表面的恶臭散发率与季节和表面吹扫风速等密切相关. 高温季节挥发性有机物和恶臭浓度计的污染散发率可较低温季节高出6倍以上,在0.6~4m·s-1的测试吹扫风速范围内,恶臭污染物的释放率随风速增加而近似呈线性增加的趋势. 夏季生活垃圾表面的挥发性有机物(PID测定以异丁烯计)的散发率为385~680 μg·(m2·s)-1,H2S散发率为4~7 μg·(m2·s)-1,恶臭浓度散发率为46.5~136 OU·(m2·s)-1. 持续通风实验结果表明,采用洁净空气吹扫得到的散发率是面源的最大可能散发率,在进行采样时间10 min以上的恶臭浓度或作业面散发量估算时,需对散发率进行适当修正. |
英文摘要 |
Emission rates of volatile organic compounds(VOCs), H2S and odor unit from the surface of a municipal solid waste (MSW) landfill working area were measured with a wind tunnel sampler. The results show that the emission rate of odor from the non-point source of landfill is the function of environmental temperature and surface sweeping velocity. The emission rate measured in the high temperature season can be 6 times higher of that in the low temperature season. Within the experimental range of 0.6-4 m·s-1 wind sweeping velocity, the emission rate shows a linear relationship with wind sweeping velocity. In summer, the emission rates of VOCs (measured by PID as isobutylene), H2S and odor unit are 385-680 μg·(m2·s)-1, 4-7 μg·(m2·s)-1, and 46.5-136 OU·(m2·s)-1 respectively. The continuous sweeping experiment shows that the emission rate measured with clean air sweeping is the maximum possible emission rate, which needs to be adjusted when it is used to estimate the odor concentration of more than 10 min sample time or an area emission load. |
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