微生物絮凝剂XM09活性成分分析及应用

从活性污泥中筛选出一株絮凝剂高产菌酱油曲霉M09,研究其所产絮凝剂的性质及处理实际废水的效果.结果发现,该絮凝剂XM09是M09分泌至细胞外的代谢产物,是富含羟基和羧基官能团的多糖类物质.以淀粉废水作为测试废水,采用SAS软件进行影响絮凝活性因素的响应面分析,获得了模拟程度较好的回归模型,进而得到最优的絮凝条件方案:M...

Application and analysis of active ingredient of microbial flocculant XM09

Aspergillus sojae M09 as high-yield strain was isolated from activated sludge. Study of the flocculating characteristics and effect of treating the actual wastewater of the bioflocculant produced by strain M09 was carried out. Results showed that the flocculant XM09 was a metabolite secreted in the extracellular by strain M09, and it was a polysaccharide rich in hydroxyl and carboxyl functional groups. Taking starch wastewater as a testing wastewater, SAS software was employed to do response surface analysis of factors influencing flocculating activity, and to acquire a regression model with good simulation. Then, the optimal scheme of flocculating condition obtained by SAS software were MBF dosage of 1.65 mL, pH 6, and the top speed of stirring of 325 r/min. And the flocculating rate was 89.57% under this condition. The paper indicated that the bioflocculant has a good flocculating performance in treating starch wastewater, and a huge potential for application of actual wastewater treatment.