UASB和EGSB反应器中厌氧颗粒污泥生物学特性的比较

测定了实验室规模的２Ｌ ＥＧＳＢ和ＵＡＳＢ反应器中培养的厌氧颗粒污泥在不同基质中的比产甲烷活性、辅酶Ｆ４２０含量和胞外多聚酶物含量，结果表明，ＥＧＳＢ反应器颗粒污泥在葡萄糖上的比产甲烷活性、利用乙酸的甲烷菌和产氢产乙酸菌的活怀和胞外多聚物／含量高于ＵＡＳＢ反应器颗粒污泥，而ＵＡＳＢ反应器颗粒污泥中利用甲酸和氢的甲烷菌的活性以及辅酶Ｆ４２０的含量较ＥＧＳＢ反应器颗粒污泥更高，辅酶Ｆ４２０可以指示同种

COMPARATIVE STUDY ON THE BIOLOGICAL CHARACTERISTICS OF ANAEROBIC GRANU LAR SLUDGES FROM UASB AND EGSB REACTORS

The specific methane production activities, contents of coenzyme F 420 and extracelluar polymers were determined in anaerobic granular sludges cultured in 2 L bench scale EGSB and UASB reactors. Results showed that in sludge from EGSB reactor, the specific methane production activity in glucose, the activities of acetate utilizing methanogens and hydrogen producing acetogens and content of extracellular polymers were apparently higher than those in sludge from UASB reactor. However, the activities of formate utilizing and hydrogen utilizing methanogens, and content of coenzyme F 420 in sludge from UASB reactor were higher than those in sludge from EGSB reactor. The content of coenzyme F 420 could indicate the activity of methanogens in the same kind of sludge. In sludges deposited for 3 months, little activity of hydrogen producing acetogens was determined, whereas the activities of formate utilizing and hydrogen utilizing methanogens were less affected by storage. Fig 2, Tab 2, Ref 13