关于活化硅藻精土强化处理生活污水的实验研究

Experimental Study on Enhanced Treatment of Domestic Sewage with Activated Diatomite

环境污染的问题日益突出,国家现有的技术经济水平相对落后,无法大规模运用高新技术处理城市污水,这就决定了很长一段时间内一级处理出水是我们国家中小城市处理水的重要方式。这次研究以硅藻精土用量,活化时间,硫酸的浓度以及用量为参数对活化硅藻精土对生活污水的作用机理及吸附效果进行实验,通过对浊度去除百分比和CODcr去除百分比的监测,得到所用硅藻精土对城市污水最佳的吸附参数。根据改性后硅藻精土对污水中污染物的吸附作用,认为可以用在城市污水的预处理中有效的祛除水中悬浮物质,为后续处理减少负荷。

the aggravation of environmental pollution and the current level of technology and economy determine that the primary treatment of effluent is an important way of water treatment in small and medium-sized cities of our country for a long time.In this study,the amount of diatomite,activation time,concentration of sulfuric acid and the amount of diatomite were used as parameters to test the mechanism and adsorption effect of activated diatomite on domestic sewage.Through the monitoring of turbidity removal rate and COD removal rate,the best adsorption parameters of diatomite on urban sewage were obtained.According to the adsorption effect of Modified Diatomite on pollutants in sewage,it is considered that the modified diatomite can be used in the pretreatment of urban sewage to effectively remove suspended substances in water and reduce the load for subsequent treatment.