石化污水厂除磷技术研究

Study on phosphorus removal technology for petrochemical wastewater treatment plant

作者介绍了磷污染的危害及除磷技术现状,针对某污水处理厂的废水ρ(总磷)(TP)情况,在现有生物除磷工艺的基础上,开展了化学除磷研究,确定了最佳除磷药剂、最佳搅拌时间、最佳沉淀时间和确保TP达标的药剂投加量。通过化学除磷技术的研究应用可确保生化除磷效果不稳定的情况下污水厂出水TP的稳定达标。

This study described phosphorus pollution hazards and phosphorus removal technology sta- tus. Chemical phosphorus removal test was carried out on the basis of existing biological phosphorus removal process for a sewage treatment plant effluent TP（total phosphorus） case. By studying,we de- termined the optimal phosphorusagents,the optimum mixing time, the best settling time and the best pharmaceutical dosage,reached the TP discharge standards. When effects of biochemical phosphorus is unstable,the application of chemical phosphorus removal technology ensures that wastewater treat- ment plant TP can meet the discharge standards.