应用响应面法优化普通小球藻的絮凝工艺

Optimization of Chlorella vulgaris Flocculation Using Response Surface Methodology

摘要: 以聚合氯化铝（Poly aluminium chloride，PAC）为絮凝剂，利用响应面法对普通小球藻Chlorella vulgaris的絮凝工艺进行优化。研究结果表明：影响C.vulgaris絮凝效率的主次因素顺序为絮凝时间>C.vulgaris初始OD值>PAC浓度；C.vulgaris的最佳絮凝工艺为：PAC浓度为57 mg·L^-1，C.vulgaris初始OD值为2.06，絮凝时间为18 min。在此絮凝条件下，C.vulgaris的絮凝效率为95.82%。研究结果将为进一步研究C.vulgaris的絮凝采收工艺提供数据参考和技术支持。

Abstract: Flocculation of Chlorella vulgaris using Poly aluminum chloride (PAC) was optimized by theresponse surface methodology. The factors that affected the flocculation efficiency were in the order flocculation duration>initial OD value of C.vulgaris>PAC concentration. The optimized flocculation conditions included a PAC concentration of 57 mg·L^-1, an initial OD value of C.vulgaris of 2.06, and flocculation for 18 min to achieve a maximized efficiency of 95.82%.