| 好氧及厌氧固定化微生物处理能力的比较研究 |
| 摘要点击 865 全文点击 1359 修订日期：1993-06-30 |
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| 中文关键词 固定化微生物 固定化活性污泥 固定化厌氧污泥 |
| 英文关键词 immobilized microbes immobilized activated sludge immobilized anaerobic sludge treating capacity |
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| 中文摘要 |
| 以聚乙烯酸(PVA)为包埋剂,分别包埋固定活性污泥及厌氧污泥进行了对废水中有机物的好氧及厌氧降解试验,比较了固定化及未固定的污泥、固定化活性及厌氧污泥对废水的处理能力。结果表明,固定化污泥的容积负荷是未固定污泥的1.3-2.1倍,在试验条件下,固定化厌氧污泥与自由厌氧污泥的容积负荷之比(2.13)明显高于固定化活性污泥与自由活性污泥的比值(1.30-1.54).综合污泥负荷及单位污泥产气量,说明固定化厌氧污泥比固定化活性污泥更能发挥微生物的处理能力。 |
| 英文摘要 |
| Activated and anaerobic sludges were respectively immobilized with polyvinyl alcohol (PVA) used as an entrapping agent, and then the immobilized sludges were separately used to degrade the organics in wastewater under the aerobic and anaerobic conditions, respectively.Comparisons in the capacity of treating organics were also made between the immobilized and free sludges and between the immobilized activated sludge and the immobilized anaerobic sludge. The results show that the volumetric loading was 1.3 to 2.1 times that of free sludge,meant by that the immobilized sludges had a higher capacity of treating organics than a free sludge. Under the conditions studied, the volumetric loading ratio of the immobilized anaerobic sludge to the free anaerobic sludge (2.13) was much higher than that of the immobilized activated sludge to the free activated sludge (1.30-1.54).Considering the sludge loading and gas yield per unit of sludge by weight,it was concluded that the capacity of microbe treating organics could be fullier developed in the immobilized anaerobic sludge so that the immobilized microbes entrapped in a gel would be more suitable for the anaerobic treatment of a high strength organic wastewater. |
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