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| Study on Physicochemical Characteristics of Micro-aerobic Magnetic Activated Sludge for PCP Degradation |
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| DOI：10.11981/j.issn.1000-6842.2017.03.32 |
| Key Words:PCP; micro-aerobic; activated sludge; magnetic particle; physicochemical characteristics |
| Fund Project: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）；青岛科技大学校级大学生创新训练计划项目（201509006）。 |
| Author Name | Affiliation | | 张 浩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 | | 孙延霜1 | 1.青岛科技大学环境与安全工程学院，山东青岛,266042 | | 兰善红3 | 3.东莞理工学院生态环境与建筑工程学院，广东东莞，523808 | | 马 平4 | 4.山东中烟工业有限责任公司滕州卷烟厂，山东滕州，277599 |
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| Abstract: |
| Using anaerobic sludge as seed sludge, the MLSS, SVI and flocculation performance of the micro-aerobic magnetic activated sludge were studied during domestication process. The activated sludge was cultured by adding PCP gradiently under the condition of magnetic field and less dissolved oxygen. It was found that micro-aerobic activated sludge was in a tight state with larger flocculation and MLSS was higher than the reactor without magnetic particle. Besides, the sludge had better settling performance with the SVI value remaining in the 45～55 mL/g when PCP concentration was lower than 20 mg/L. On the contrary, the sludge was loose and SVI value was high in the reactor without magnetic particle. The measurement results of total amount of extracellular polymeric substances (ECPs) and PN/PS, indicated that the addition of magnetic powder greatly improved the flocculation performance of the sludge. |
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