好氧及厌氧固定化微生物处理能力的比较研究  

Comparative Study on the Capacities of Aerobic and Anaerobic Immobilized Microbes to Treat Organics

作　　者：吴晓磊[1] 俞毓馨[1] 钱易[1] 

机构地区：[1]清华大学环境工程系

出　　处：《环境科学》1994年第4期50-52,共3页Environmental Science

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。Activated and anaerobic sludges were respectivelyimmobilized with polyvinyl alcohol(PVA)used asan entrapping agent, and then the immobilizedsludges were separately used to degrade the organicsin wastewater under the aerobic and anaerobicconditions, respectively.Comparisons in the capacityof treating organics were also made between theimmobilized and free sludges and between theimmobilized activated sludge and the immobilizedanaerobic sludge. The results show that thevolumetric loading was 1.3 to 2.1 times that of freesludge,meant by that the immobilized sludges had ahigher capacity of treating organics than a freesludge. Under the conditions studied, the volumetricloading ratio of the immobilized anaerobic sludge tothe free anaerobic sludge (2.13) was much higherthan that of the immobilized activated sludge to thefree activated sludge (1.30-1.54).Consideringthe sludge loading and gas yield per unit of sludge byweight,it was concluded that the capacity of microbetreating organics could be fullier developed in theimmobilized anaerobic sludge so that the immobilizedmicrobes entrapped in a gel would be more suitablefor the anaerobic treatment of a high strengthorganic wastewater.

关 键 词：固定化 微生物 活性污泥 厌氧污泥 废水处理 

分 类 号：X703[环境科学与工程—环境工程]