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采用新型生物炭与海藻酸钠联合固定化技术对麦草畏降解菌XD-3进行固定化,结果表明海藻酸钠-生物炭联合固定化的小球机械强度、传质性能明显高于海藻酸钠固定化小球;电镜扫描图谱结果发现海藻酸钠-生物碳联合固定化小球更适合麦草畏降解菌的生长和定殖;不同的温度、p H值、Na Cl浓度和重金属离子浓度对固定化菌与游离菌降解效果影响研究表明,生物碳与海藻酸钠联合固定化细菌适应范围广,抗冲击能力更强。在实验室规模的流化床生物反应器(FBBR)中,联合固定化菌可以持续高效降解模拟麦草畏废水,为麦草畏固定化菌的工程化应用奠定了基础。
Biochar immobilized with sodium alginate was used to immobilize dicamba-degrading bacteria XD-3. The results showed that the mechanical strength and mass transfer properties of sodium alginate-biochar co-immobilized pellets were significantly higher than those of sodium alginate Immobilized pellets. The results of scanning electron microscopy showed that sodium alginate-biochar combined immobilized pellets were more suitable for the growth and colonization of dicamba-degrading bacteria. Different temperature, p H value, Na Cl concentration and heavy metal ion concentration Bacteria and free bacteria degradation effect studies have shown that biological carbon and sodium alginate immobilized bacteria adapt to a wide range of impact resistance stronger. In a laboratory-scale FBBR, the combination of immobilized bacteria sustained and efficient degradation of simulated dicamba wastewater laid the foundation for the engineering application of dicamba-immobilized bacteria.