静态条件下 HP(MA-VAc-MMA)多孔载体固定化微生物的研究

本文研究了ＨＰ（ＭＡ－ＶＡｃ－ＭＭＡ）多孔载体静态状况下固定化厌氧微生物的影响因素。结果表明，多孔高分子载体固定化微生物效果优于活性炭、活性污泥，固定化效果受单体组成、致孔剂、交联剂等的影响显著。当ＭＡ／ＶＡＣ／ＭＭＡ为４／５／１，用ＤＶＢ与ＥＧＤＡ混合物为交联剂，ＰＶＡＣ与ＢＡＣ混合物为致孔剂，用量分别为１０％，２０％，水解度大于３０％，粒径４０－６０目的多孔共聚物栽体，固定化厌氧微生物效果优良。

The Effect of Porous Carrier of HP(MA-VAc-MMA) on Microorganism Immobilization under Static Condition

HP(MA-VAc-MMA), a porour copolymer carrier for microorganism immobilization, has been prepared. The influences of copolymer composition, amounts of crosslinking and porosity agents and the degree of hydrolysis and particle size of HP(MA-VAc-MMA) on the microorganism immobilization have been studied under static condition. The results show that the HP(MA-VAc-MMA) has a high capacity for microorganism immobilization. It can results in a higher methane production than that produced when taking active carbon or sludge as carriers. The study also finds that the microorganism are mainly immobilized on the outer surface and inside wall of porosity of HP(MA-VAc-MMA). The effectiency of immobilization microorganism on the waster water treatment strongly depends on the structure of copolymer and the porous structure of HP(MA-VAc-MMA), which are related to the composition, the used crosslinking and porous agents and their amounts, the degree of hydrolysis and particle size. The HP(MA-VAc-MMA) can be prepared with ratios of (4/5/1) for MA/VAc/MMA, amount of mixed crosslinking agent and porisity agent is 10% and 20%, respectively, the degree of hydrolysis is 30% and the particle size is 40-60 mesh.