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| 低温下曝气生物滤池预处理污染河水的试验研究 | |
| 引用本文： | 谭南中,吴为中,李德生,沈志强,杨荔,陈佳利. 低温下曝气生物滤池预处理污染河水的试验研究[J]. 生态环境, 2011, 20(4): 711-715 |
| 作者姓名： | 谭南中 吴为中 李德生 沈志强 杨荔 陈佳利 |
| 作者单位： | 1. 兰州交通大学环境与市政工程学院,甘肃兰州730070;北京大学环境科学与工程学院,北京100871 2. 北京大学环境科学与工程学院,北京,100871 3. 北京交通大学土木建筑学院,北京,100044 4. 清华大学核能与新能源技术研究院,北京,100084 5. 兰州交通大学环境与市政工程学院,甘肃兰州,730070 6. 湖南大学环境科学与工程学院,湖南长沙,410082 |
| 摘 要： | 采用两段曝气生物滤床串联工艺预处理入滇新运粮河河水,研究了其在冬天低温条件下对有机物和氨氮的去除效果,并考察了pH值的变化。结果表明,在进水流量为2.4 m3.d-1、水温为13-16℃、原水ρ（CODCr）为66.46-107.82 mg·L-1、ρ（氨氮）为22.15-30.68 mg·L-1的水质特征条件下,系统对CODCr和氨氮的去除率分别为36.08%-50.37%和76.98%-93.56%。其中,碳氧化段以去除有机物为主,硝化段以去除氨氮为主;系统中硝酸氮质量浓度明显升高,无亚硝氮的积累;装置对总氮的平均去除率为19.56%,可以认为总氮的去除是同步硝化反硝化的结果。系统中pH值有所变化但维持在7-8之间,其中碳氧化段pH值升高,硝化段pH值下降。系统对有机物和氨氮良好的去除效果为后续进一步的生物处理提供了条件。 |
| 关 键 词： | 曝气生物滤池 预处理 城市污染河水 有机污染物 氨氮 |
Pretreatment of urban polluted river water by biological aerated filter |
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| TAN Nanzhong,WU Weizhong,LI Desheng,SHEN Zhiqiang,YANG Li,CHEN Jiali. Pretreatment of urban polluted river water by biological aerated filter[J]. Ecology and Environmnet, 2011, 20(4): 711-715 | |
| Authors: | TAN Nanzhong WU Weizhong LI Desheng SHEN Zhiqiang YANG Li CHEN Jiali |
| Affiliation: | TAN Nanzhong1,2,WU Weizhong2*,LI Desheng3,SHEN Zhiqiang4,YANG Li1,CHEN Jiali5 1.School of Environmental and Municipal Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China,2.College of Environmental Sciences and Engineering,Peking University,Beijing 100871,3.School of Civil Engineering,Beijing Jiaotong University,Beijing 100044,4.Institute of Nuclear and New Energy Technology,Tsinghua University,Beijing 100084,5.College of Environmental Science and Engineering,Hunan University,C... |
| Abstract: | Two-stage of Biological aerated filter bed was used in serie for pretreatment of the water of Xin Yunliang River. The removal effect of CODcr and ammonia was studied in the experiment in winter at low temperature, and the pH value was also monitored. The results showed that at influent flow rate of 2.4 m3.d1, water tempreture of 13-16 ℃, the CODcr between 66.46-107.82 mg.L-1, the ammonia nitrogen between 22.15-30.68 mg.L-1 and the effluent dissolved oxygen of not less 3.5 mg.L-1, the removal rate of CODcr and ammonia nitrogen were 36.08%-50.37% and 76.98%-93.56% respectively. In the two-stage biological aerated filter, the concentration of nitrogen nitrogen increased significantly and there was no nitrite nitrogen accumulated. The total removal of the total nitrogen was 19.56%, and it could be considered the result of simultaneous nitrification and denitrification. The pH value fluctuated between 7-8. The good removal effect for the CODcr and ammonia nitrogen provided suitable conditions for further biological treatment. |
| Keywords: | biological aerated filter pre-treatment urban polluted river water organic pollutant ammonia nitrogen |
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