| 碳源对晚期垃圾渗滤液短程硝化的影响 |
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| 引用本文： | 吴莉娜,彭永臻,王淑莹,张树军,罗萌.碳源对晚期垃圾渗滤液短程硝化的影响[J].北京工业大学学报,2009,35(4). |
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| 作者姓名： | 吴莉娜 彭永臻 王淑莹 张树军 罗萌 |
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| 作者单位： | 北京工业大学,环境与能源工程学院,北京,100124 |
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| 基金项目： | 城市水资源与水环境国家重点实验室开放基金,北京市自然科学基金,北京市高校人才强教深化计划高层次人才资助项目 |
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| 摘 要： | 为了考察碳源对晚期垃圾渗滤液短程硝化的影响,采用"两级UASB-缺氧-好氧系统"处理城市生活垃圾晚期渗滤液.系统进水COD质量浓度为4.3g/L左右,进水氨氮质量浓度为2.8 g/L,故COD与氨氮质量浓度之比很低,为1.5左右.首先在UASB1中实现同时反硝化与产甲烷反应,一部分COD在UASB2中进一步去除,在A/O反应器中利用残余COD进行反硝化以及NH_4~+-N的彻底硝化.试验结果表明,未投外加碳源时,原水中可降解COD几乎全部作为一级UASB的反硝化碳源被利用,A/O池缺氧段反硝化碳源不足.在A/O池的A段投加相当于1 g/L COD质量浓度的无水乙酸钠作为电子供体促进反硝化后,由于反硝化产生大量的碱度,补充了硝化所消耗的碱度,使pH值维持在一个比较合适的范围,可实现稳定的短程硝化,亚硝态氮累积率由未投加碳源时的20%提高到87%,系统出水氨氮质量浓度为0.01 g/L左右,氨氮的去除率也由未投加碳源时的92%提高到99.6%.
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| 关 键 词： | 脱氮 垃圾渗滤液 短程硝化 碳源 |
Effect of Carbon Source on the Short-cut Nitrification of the Mature Municipal Landfill Leachate |
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| WU Li-na,PENG Yong-zhen,WANG Shu-ying,ZHANG Shu-jun,LUO Meng.Effect of Carbon Source on the Short-cut Nitrification of the Mature Municipal Landfill Leachate[J].Journal of Beijing Polytechnic University,2009,35(4). |
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| Authors: | WU Li-na PENG Yong-zhen WANG Shu-ying ZHANG Shu-jun LUO Meng |
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| Affiliation: | College of Environmental and Energy Engineering;Beijing University of Technology;Beijing 100124;China |
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| Abstract: | A system consisted of two-stage UASB-Anoxic/Oxic reactor(A/O)was used to study the short-cut nitrification of the mature municipal landfill leachate with low COD and high ammonia concentration.The COD concentration of influent leachate was 4.3 g/L,and the ammonia concentration of influent leachate was 2.8 g/L,so the ratio of C/N was only 1.5.The uasbl methane production and the denitrification happened at the same time.The concentration of uasbl effluent COD was removed further in the uasb 2.Then nitrificat... |
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| Keywords: | nitrogen removal landfill leachate short-cut nitrification carbon source |
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