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碱度NaOH投加量对土霉素菌渣减量化影响试验研究

祁国平,  李维维,  牛永健,  宁高阳,  孙洪伟

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文章导航 > 环境工程  > 2020 >  38(11): 140-144,151
祁国平, 李维维, 牛永健, 宁高阳, 孙洪伟. 碱度NaOH投加量对土霉素菌渣减量化影响试验研究[J]. 环境工程, 2020, 38(11): 140-144,151. doi: 10.13205/j.hjgc.202011023
引用本文: 祁国平, 李维维, 牛永健, 宁高阳, 孙洪伟. 碱度NaOH投加量对土霉素菌渣减量化影响试验研究[J]. 环境工程, 2020, 38(11): 140-144,151. doi: 10.13205/j.hjgc.202011023
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QI Guo-ping, LI Wei-wei, NIU Yong-jian, NING Gao-yang, SUN Hong-wei. EXPERIMENTAL STUDY ON REDUCTION OF OXYTETRACYCLINE RESIDUE BY ALKALINITY OF NaOH’s DOSAGES[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(11): 140-144,151. doi: 10.13205/j.hjgc.202011023
Citation: QI Guo-ping, LI Wei-wei, NIU Yong-jian, NING Gao-yang, SUN Hong-wei. EXPERIMENTAL STUDY ON REDUCTION OF OXYTETRACYCLINE RESIDUE BY ALKALINITY OF NaOH’s DOSAGES[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(11): 140-144,151. doi: 10.13205/j.hjgc.202011023
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碱度NaOH投加量对土霉素菌渣减量化影响试验研究

doi: 10.13205/j.hjgc.202011023

  • 1. 甘肃省轻工研究院, 兰州 730030;

  • 2. 兰州交通大学 环境与市政工程学院, 兰州 730070;

  • 3. 甘肃省污水处理行业技术中心, 兰州 730070

基金项目: 

甘肃省科技计划资助项目（17YF1GA009）。

详细信息
    作者简介:

    祁国平(1966-),男,高级工程师,主要研究方向为清洁生产和资源综合利用技术。1123942186@qq.com

    通讯作者:

    牛永健(1968-),男,高级工程师,主要研究方向为制浆造纸工艺及污水处理技术研究。369604269@qq.com

EXPERIMENTAL STUDY ON REDUCTION OF OXYTETRACYCLINE RESIDUE BY ALKALINITY OF NaOH’s DOSAGES

  • 1. Gansu Province Light Industry Research Institute, Lanzhou 730030, China;

  • 2. College of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China;

  • 3. Gansu Sewage Treatment Industry Technical Center, Lanzhou 730070, China

    摘要
  • 摘要: 为探究碱-水热处理土霉素菌渣时NaOH投加量对SS、TS、土霉素、COD等含量的影响，调节菌渣含水率为98%，设置碱投加量分别为0.06，0.08，0.10，0.12，0.14 g/g，在120℃下水热反应2 h。通过测定反应前后TS、SS、土霉素、COD的含量及pH值分析得出，混合液TS、SS减量率变化趋势相同，均随着NaOH投加量增加先显著升高后略微下降，且均在碱投加量为0.12 g/g时达到最大（分别为14.36%和44.13%）。COD溶出率与SS减量率变化趋势相同，碱投加量为0.12 g/g时COD溶出率达到最大（45.82%），菌渣溶胞SS减量亦效果最佳。土霉素减量率变化趋势则相反，过高的碱投加量并不利于土霉素的去除，土霉素减量率在碱投加量为0.08 g/g时最高，平均达到99.99%；pH值在反应后明显下降，下降幅度与TS、SS减量率呈正相关。
    Abstract: In order to explore the influence of NaOH dosage acting on the contents of SS, TS, oxytetracycline and COD during alkal-water heat treatment, the alkali dosage was controlled as 0.06 g NaOH/g TS, 0.08 g NaOH/g TS, 0.10 g NaOH/g TS, 0.12 g NaOH/g TS and 0.14 g NaOH/g TS respectively, reacting for 2 h at 120 ℃. Before and after reaction, we measured the contents of TS, SS, oxytetracycline, COD and pH value. It was found that reduction quantity rates of TS and SS in the miscible liquids all increased significantly with the increase of NaOH dosage at first, and then decreased slightly, and all reached the maximum(14.36% and 44.13% respectively ) when the alkali dosage was 0.12 g NaOH/g TS. The change trend of COD dissolution efficiency was similar to the removal efficiency of SS, and the maximum dissolution efficiency (45.82%) was achieved when the alkali dosage was 0.12 g NaOH/g TS. Therefore, the highest cytolytic decrease efficiency of bacterial residue was achieved when the alkali dosage was 0.12 g NaOH/g TS. But the change trend of oxytetracycline reduction efficiency was reversed, as the excessive alkali dosage was not conducive to the removal of oxytetracycline, and the reduction quantities of oxytetracycline reached the peak with an average value of 99.99% when the alkali dosage was 0.08 g NaOH/g TS. The pH value decreased significantly after the reaction, and its extent was positively related to the reduction rates of TS and SS.
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出版历程
  • 收稿日期:  2020-02-11
  • 网络出版日期:  2021-04-23
  • 刊出日期:  2021-04-23

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