|
二维码（扫一下试试看！） |
| Effect of DO Concentration on Treatment of PCP by Magnetic Activated Sludge |
| |
| DOI：10.11981/j.issn.1000-6842.2017.04.37 |
| Key Words:micro magnetic field； activated sludge； DO concentration； PCP |
| 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 | | 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 | | 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 | | 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 | | 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 |
|
| Hits: 3379 |
| Download times: 1083 |
| Abstract: |
| The effect of DO concentration on treatment of PCP by magnetic activated sludge in a suitable pH (pH value of 7) condition was studied, with activated sludge without magnetic as blank control. The effect of DO concentration on the removal rate of PCP and CODCr, the microbial activity and flocculation performance of the activated sludge system was studied. The experimental results showed that the treatment effect of magnetic activated sludge on PCP and CODCr was better than that of activated sludge without magnetic, especially when DO concentration was 0.2~3.0 mg/L. When DO concentration was 0.6 mg/L, the removal rate of PCP and CODCr reached maximum of 82% and 63% respectively, and with the increase of DO concentration, the removal rates decreased gradually. Due to the effect of DO concentration on the proportion and activity of aerobic microorganisms and anaerobic microorganisms in activated sludge system, the concentration of dehydrogenase and extracellular polymeric substance（PN/PS）reached the highest value at the value of DO concentration of 0.6 mg/L. The concentrations of dehydrogenase in the magnetic activated sludge system and non magnetic activated sludge were 227 mg TF/(L·h) and 165 mg TF/(L·h) and the values of extracellular polymeric substance were 1.58 and 1.02 respectively. |
| View Full Text View/Add Comment Download reader HTML |
