Study on Advanced Treatment of Pulping and Papermaking Process Effluent by Immobilized Laccase
The lacasse was immobilized by sodium alginate for papermaking wastewater treatment. The influence of the important factors on the treatment effect was studied by single factor test; and the optimized condition of immobilized lacasse treating papermaking wastewater was investigated by orthogonal test. The result shows that the optimum conditions are pH4, reaction time is 24h, shaker rotation speed is 160r/min, and reaction temperature is 40°C. The decoloring rate reach 73.3%, the COD removing rate is more than67.2%, the average CODCr and chroma of the treated water respectively are 98.3mg/L and 45.4times, The quality of the final water not only can completely satisfies the new discharge standard, but also the recycle requirements.
Zhong Cao, Lixian Sun, Xueqiang Cao, Yinghe He
S. Wang et al., "Study on Advanced Treatment of Pulping and Papermaking Process Effluent by Immobilized Laccase", Advanced Materials Research, Vols. 233-235, pp. 712-715, 2011