造纸废水在人工湿地生态处理的构建及其降解动力学探索

The construction of artificial wetland for ecological treatment of papermaking waste water and its exploration on degradation dynamics

国际上通常把森林、海洋和湿地并称为全球三大生态系统。构建大规模的由人工建造和控制运行的人工(仿自然)类似的沼泽综合人工湿地生态系统,借助人工湿地生态系统微生物菌类及湿地植物,对造纸废水中有机污染物(尤其是难降解的木质素)等进行降解,实现造纸废水净化,是目前造纸废水深度处理的一种经济技术可行的工艺。本文通过对造纸废水经人工湿地系统处理的水质参数进行测定分析及湿地植物在造纸废水作用下的生长情况进行实验,以COD为参数指标,对其降解动力学进行探讨。

The international community generally regards forests, oceans and wetlands as the three global ecosystems. It is an economic and technically feasibletreating process for papermaking wastewater to build large-scale artiifcial （imitation natural） similar swamp comprehensive wetland ecosystems, artificially built and controlled by operator, in which organic pollutants （particularly recalcitrant lignin） in papermaking waste water are degraded with the help of microbial classes and wetland plants in artificial wetland ecosystem to achieve papermaking waste water purification. In this paper, the quality parameters of waste water treated by artificial wetland were measured and analyzed, through growth experiments in wetland plants with pulp and paper eflfuent treatment, its degradation kinetics was explored taken COD as parameter index.