文档介绍：Optimized Biodegradation of Pulping Effluent by Microbial
Combination with Statistical Experimental Design
Honglei Chen, Yuancai Chen*, Huaiyu Technology, Guangzhou, 510640, Guangdong,
Zhan, Shiyu Fu China. (E-mail: shaming007@;
******@scut.; ******@scut.;
State Key Laboratory of Pulp and Paper ******@scut.)
Engineering, South China University of
Abstract—Statistics based experimental designs methodology (RSM) were employed to build
were used to construct a mixed-munity models to investigate the interplays of tested
for maximal chemical oxygen demand (COD) variables for enhancing pulp effluent treatment.
degradation of pulping effluents. By applying a
fractional factorial design (FFD) of experiments, 2. MATERIALS AND METHODS
the significant effect of each strain on COD
degradation was first quantified. Then steepest Effluent source
ascent method was employed to approach the Black liquor and bleach effluent from
experimental design space, followed by an processing stage with chlorine dioxide were
application of response surface methodology (RSM) obtained in the laboratory utilizing E. globules
for further optimization. A quadratic model was as raw material and sulfate pulping processing.
found to be fit COD removal efficiency. Response
surface analysis revealed that the optimum levels anisms
of the tested variables for