稳定塘对制浆废水中羟基芳族化合物去除的试验研究

研究稳定塘对造纸制浆废水中羟基芳族化合物的去除效果,以及氮、磷和填料三因素对厌氧塘去除效果的影响。试验采用三因素二次饱和设计,找出处理效果最佳的氮、磷及填料水平的组合与出水经基芳族化合物的关系。分别建立了厌氧塘出水中羟基芳族化合物,厌氧塘一级反应速率常数K(以羟基芳族化合物为底物)与氮、磷、填料的回归方程,并找出了最优处理效果的氮水平和磷水平。结果显示在平衡阶段,出水羟基芳族化合物与氮正相关,与磷二次项正相关,与磷一次项负相关。

Study on removal of hydroxy aromatics from pulp wastewater by stabilization pond

This study deals with the removal effect of hydroxy aromatics (HA) from pulp wastewater by stabilization pond and the influencing factors such as N, P content and package media on the performance of anaerobic pond (AP) . The experiment was designed as a tri-factor quadratic saturated model to find out the relationships of residual HA in effluent to proper combination of N, P and package media. Two regression equations are formulated, one to express the relationship between the HA in effluent of AP and influencing factors N, P and media, and else the relationship between the substrate removal rate constant K of the first order reaction and the influencing factors in the anaerobic pond. From those equations the optimized N and P level have been found. At balance phase the effluent HA is positive correlated to N and square P and negative correlated to first P.