| 王 玮,耿士文,贾亚婷,蓝惠霞,兰善红,李军训.pH值对微氧磁性活性污泥系统处理含五氯酚废水的影响[J].中国造纸学报,2017,32(2):28-32 |
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| pH值对微氧磁性活性污泥系统处理含五氯酚废水的影响 |
| The Effect of pH Value on Treatment of PCP by Micro-aerobic Magnetic Activated Sludge |
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| DOI：10.11981/j.issn.1000-6842.2017.02.28 |
| 中文关键词: 微氧 磁性 活性污泥 pH值 五氯酚 |
| Key Words:micro-aerobic magnetic field activated sludge pH value pentachlorophenol |
| 基金项目:制浆造纸工程国家重点实验室开放基金(201522)；广东省教育厅自然科学项目(2015KTSCX140)；山东省科技重大专项(新兴产业)项目(2015ZDXX0403B03)。 |
| 作者 | 单位 | | 王 玮1 | 1.青岛科技大学环境与安全工程学院,山东青岛,266042 | | 耿士文1 | 1.青岛科技大学环境与安全工程学院,山东青岛,266042 | | 贾亚婷1 | 1.青岛科技大学环境与安全工程学院,山东青岛,266042 | | 蓝惠霞1,2,* | 1.青岛科技大学环境与安全工程学院,山东青岛,266042；2.华南理工大学制浆造纸工程国家重点实验室,广东广州,510640 | | 兰善红3 | 3.东莞理工学院化学与环境工程学院,广东东莞,523808 | | 李军训4 | 4.泰安生力源生物工程有限公司,山东泰安,271000 |
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| 中文摘要: |
| 研究了pH值对微氧磁性活性污泥系统处理五氯酚(PCP)废水的影响,并以微氧活性污泥系统作为对照,考察了不同pH值下PCP和CODCr去除率、微生物活性以及污泥理化特性的变化。结果表明,与微氧活性污泥系统相比,pH值在5.0～9.0范围内,微氧磁性活性污泥系统的PCP和CODCr去除率均较高,且微氧磁性活性污泥系统和微氧活性污泥系统均在pH值为7时PCP和CODCr的去除率达到最大,分别为87.5%和70.5%、77.0%和67.0%。由于磁粉的存在,微氧磁性活性污泥系统中微生物活性和絮凝性能均得到增强,当pH值为7时,微氧磁性活性污泥系统中脱氢酶浓度和胞外多聚物中蛋白质与多糖质量比(PN/PS)分别达到248.59 mg/g和1.3,而微氧活性污泥系统中这两个指标分别为173.18 mg/g和0.76。 |
| Abstract: |
| The effect of pH value on the treatment of pentachlorophenol (PCP) by magnetic activated sludge in the presence of low concentration of dissolved oxygen (DO, 0.6 mg/L) was studied,and the sludge without magnetic was as blank control. The effects of pH value on the removal rate of PCP and CODCr, the microbial activity and flocculation performance of the activated sludge system were studied. The experimental results showed that the treatment effect of micro-aerobic magnetic activated sludge on PCP and CODCr was higher than that of micro-aerobic activated sludge, especially when the pH value was 5.0～9.0. The removal rate of PCP and CODCr reached maximum when the pH value was 7.0. For micro-aerobic magnetic activated sludge and micro-aerobic activated sludge, the removal rates of PCP reached 87.5% and 70.5% and removal rates of CODCr reached 77.0% and 67.0%, respectively.Due to the presence of the micro-magnetic field, the microbial activity and flocculation performance of the activated sludge system were enhanced. When pH value was 7.0, the concentrations of dehydrogenase and extracellular polymeric substance （PN/PS）in the micro-aerobic magnetic activated sludge system were 248.59 mg/g sludge and 1.3, respectively and the values were 173.18 mg/g and 0.76 in the micro-aerobic activated sludge. |
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