| 冷冻固定化优势菌群处理含甲醛苯酚废水 |
| 摘要点击 724 全文点击 1671 投稿时间：1997-06-14 |
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| 中文关键词 固定化 废水处理 甲醛 苯酚 |
| 英文关键词 immobilization wastewater treatment formaldehyde phenol |
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| 中文摘要 |
| 以甲醛苯酚废水为对象,采用PVA1799冷冻改良法固定化优势菌群,对最佳包埋条件、固化菌体活性恢复特性、甲醛和苯酚的降解特性和pH波动的抵抗特性等进行了研究。结果表明：以10%-17%PVA1799、25%菌泥混合,-4～-10℃冷冻解融4次为最佳包埋工况；固定化菌群最佳的活性恢复时间为3-5d,对浓度为475mg/L的甲醛有95%的去除率,对浓度为565mg/L的苯酚有94%以上的去除率,平均污染物去除率均比游离优势菌群高10%-50%,固定化菌体具有优良的pH环境适应性。 |
| 英文摘要 |
| In this paper,formaldehyde & phenol wastewater treatment was investigated by using improved frozen PVA1799 immobilization of good strains.The optimal entrapped condition and the characteristics such as activity of immobilized gel,resistibility of high formaldehyde & phenol,flexibility of pH variation were studied.The feasible immobilized process is mixed 10%-17% PVA with 25% strains and -4℃～-10℃ freezing and room temperature thawing for four times.3-5 days is required for the PVA gel to recover activity,and 95% eliminate efficiency for 475mg/L formaldehyde and 94% eliminate efficiency for 565mg/L phenol is obtained,and the average removal of the pollutants is higher 10%-50% than that of ordinary activated sludge. |
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