A型沸石对含磷废水深度处理的研究

摘要

This paper is focused on the adsorption of phosphorus from wastewater by A-zeolite. It is found that the main factors affecting the phosphorus removal efficiency by A-zeolite are adsorption temperature, A-zeolite addition dosage, pH and the adsorption time. High removal efficiency can be obtained with the conditions by single element and orthogonal experiment, sewage volume 30mL, A-zeolite addition dosage 3g, adsorption time 40-50min, adsorption temperature 25 ℃, pH 4-6 and the initial phosphorus content of less than 20mg/L. The removal efficiency of phosphorus is more than 98% and the adsorption capacity of A-zeolite is 0.44mg/g. It is applicable to the advance treatment of phosphorus in industrial wastewater and domestic sewage.%论文探讨A型沸石对废水中磷的吸附性能，影响A型沸石对磷吸附的主要因素有吸附温度、灰水比、吸附时间和pH值。通过单因素和正交试验确定在水样体积30mL，A型沸石投加量3g，吸附时间为40-50min，吸附温度25℃，pH值扣5范围内，初始磷浓度小于20mg／L，A型沸石对磷都有很好的吸附效果。TP去除率达99％以上，对磷的吸附容量约为0．44mg／g，适用于工业废水处理和生活污水的深度除磷。