| 生物活性炭(PACT)对印染废水A2/O工艺强化运行效果的表征 |
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| 引用本文： | 张龙,涂勇,吴伟,刘伟京.生物活性炭(PACT)对印染废水A2/O工艺强化运行效果的表征[J].环境科学学报,2014,34(3):664-670. |
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| 作者姓名： | 张龙 涂勇 吴伟 刘伟京 |
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| 作者单位： | 1. 江苏省环境科学研究院, 南京 210036;2. 江苏省环境工程重点实验室, 南京 210036;1. 江苏省环境科学研究院, 南京 210036;2. 江苏省环境工程重点实验室, 南京 210036;1. 江苏省环境科学研究院, 南京 210036;2. 江苏省环境工程重点实验室, 南京 210036;1. 江苏省环境科学研究院, 南京 210036;2. 江苏省环境工程重点实验室, 南京 210036 |
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| 基金项目： | 国家水体污染控制与治理科技重大专项（No.2012ZX07101-003，2012ZX07301-005） |
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| 摘 要： | 采用A2/O(PACT)工艺处理水解酸化后的印染废水,对其生物强化效果进行了表征.结果表明:在粉末活性炭投加量为100 mg·L-1的条件下,对比A2/O工艺,A2/O(PACT)对COD的去除率提升超过10%,其处理能力可以达到0.6~1.0 kg·kg-1活性炭,有效提升了系统的冬季运行效果.GC-MS、毒性表征结果表明,A2/O(PACT)针对苯环类、稠环类、杂环类等特征有机污染物具有更好的处理效果.紫外-可见光光谱以及分子量分布检测结果表明:A2/O(PACT)对大分子物质(染料类、腐殖类显色物质等,800~1000 Da)的去除有较为明显的促进效果.此外,针对污泥的镜检发现,A2/O(PACT)活性污泥中具备更加完整的生物相,SEM检测结果也表明,PACT系统中粉末活性炭的生物载体作用明显.
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| 关 键 词： | PACT工艺 A/O工艺 生物强化 生物载体 |
| 收稿时间： | 7/1/2013 12:00:00 AM |
| 修稿时间： | 2013/9/16 0:00:00 |
Characterization of improved performance by powdered active carbon treatment (PACT) for dyeing wastewater treatment using A2/O process |
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| ZHANG Long,TU Yong,WU Wei and LIU Weijing.Characterization of improved performance by powdered active carbon treatment (PACT) for dyeing wastewater treatment using A2/O process[J].Acta Scientiae Circumstantiae,2014,34(3):664-670. |
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| Authors: | ZHANG Long TU Yong WU Wei and LIU Weijing |
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| Institution: | 1. Jiangsu Provincial Academy of Environmental Science, Nanjing 210036;2. Jiangsu Provincial Key Laboratory of Environmental Engineering, Nanjing 210036;1. Jiangsu Provincial Academy of Environmental Science, Nanjing 210036;2. Jiangsu Provincial Key Laboratory of Environmental Engineering, Nanjing 210036;1. Jiangsu Provincial Academy of Environmental Science, Nanjing 210036;2. Jiangsu Provincial Key Laboratory of Environmental Engineering, Nanjing 210036;1. Jiangsu Provincial Academy of Environmental Science, Nanjing 210036;2. Jiangsu Provincial Key Laboratory of Environmental Engineering, Nanjing 210036 |
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| Abstract: | The improved performance of A2/O(PACT) technology is characterized in comparison with conventional A2/O process in treatment of dyeing wastewater after hydrolysis acidification. The result shows that COD removal increased over 10% in A2/O(PACT) under a certain dosing quantity (100 mg · L-1) of powdered active carbon (PAC), while the experimental result demonstrates that treatment capacity of A2/O(PACT) could reach 0.6~1.0 kg · kg-1 PAC, and its operating efficiency and stability is greatly improved in winter. In addition, A2/O(PACT) process exhibits a higher removal efficiency in aromatic-, polycyclic-and heterocyclic-compounds characterized by GC-MS. The treatment performance for macro-molecular substance (e.g. dyestuff and humus with molecular weight of 800~1000 Da) is also improved by A2/O(PACT) detected by UV-VIS spectrometer and Gel permeation chromatography. Meanwhile, microscopic examination and electronic microscope photograph analysis show that A2/O(PACT) has a more complete biological biofacies, and the enhancement of PACT process could be attributed to the biological carrier role of the PAC. |
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| Keywords: | PACT process A2/O process bioaugmentation biological carrier |
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