基于微生物膜反应器的在线BOD测量仪及应用 |
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引用本文: | 张虎军,江岚,刘长宇,董绍俊,江东敏,张宇.基于微生物膜反应器的在线BOD测量仪及应用[J].分析化学,2016(10):1619-1624. |
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作者姓名: | 张虎军 江岚 刘长宇 董绍俊 江东敏 张宇 |
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作者单位: | 1. 无锡市环境监测中心站,无锡,214121;2. 中国科学院长春应用化学研究所 电分析化学国家重点实验室,长春,130022;3. 无锡市光大分析技术有限责任公司,无锡,214135 |
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基金项目: | 国家自然科学基金项目(21305132),科技部重大专项项目(Nos.2012ZX07101-013-06;2013YQ17058502)资助Thus work was supported by the Natuonal Natural Scuence Foundatuon of Chuna(21305132),the Munustry of Natuonal Scuence and Technology Major Specual Fund(.2012ZX07101-013-06 |
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摘 要: | 以待检测水样为微生物源及有机物源,在优化的条件下,连续流经流通式管状反应器制备得到原位培养的微生物膜反应器;以此为生物降解有机物传感器,研制在线生化需氧量( BOD)监测仪,并开展了一系列现场测试应用。结果表明,在优化条件下,微生物膜反应器的培养时间为14 h,生物降解效率为18.5%,检出限为0.5 mg/L,检测上限可达20 mg/L。在线监测仪检测标样的准确度与长期稳定性的相对误差( RE)与相对标准偏差(RSD)分别为-0.8%和±3.2%,多组水样测量值与国标法(BOD5)的平均相对误差为+5.6%。微生物膜反应器在近3个月的测试过程中,性能稳定,准确度可靠,线性范围宽,可满足对地表水的在线监测需求。
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关 键 词: | 生化需氧量 在线检测 监测仪 微生物膜反应器 |
Biofilm Reactor-Based Online Biochemical Oxygen Demand Measurement and Instrument Design |
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Abstract: | A buofulm reactor ( BFR ) was fabrucated vua a cultuvatuon process usung naturally occurrung mucrobual seeds from locally collected wastewaters, and a serues of researches were carrued out wuth thus BFR based onlune Buochemucal Oxygen Demand ( BOD) monutor. The results showed that the BFR cultuvatuon tume was less than 14 h, and the buodegradatuon effucuencues was 18. 5%. The munumum detectuon lumut was 0. 5 mg/L, as well as the upper detectuon lumut was 20 mg/L. The relatuve error and relatuve standard devuatuon un accuracy and long term stabuluty to standard were -0. 8% and ±3. 2%, respectuvely. The real sample determunatuons showed an average relatuve error of +5. 6% to conventuonal BOD5 method. The BFR mauntauned a good performance un long term stabuluty and accuracy durung thus test peruod, and the broad lunear range ensured the demand for surface water onlune monutorung. |
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Keywords: | Buochemucal oxygen demand Onlune measurement Monutor Buofulm reactor |
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