摘要
研究磷的各级形态及其迁移规律对保障污水处理达标具有重要的意义。本文对以接触氧化法-生物滤池为主要处理工艺的武汉市某污水处理厂5个阶段的水样中的磷形态进行试验研究。试验按照国标方法进行分类,将磷分为总磷(TP),溶解性总磷(DTP)、溶解性正磷酸盐(PO4^3--P)、颗粒态磷(PP)和溶解性有机磷(DOP)。结果表明,该污水处理厂的磷主要存在形式为溶解性总磷,而溶解性正磷酸盐则为溶解性总磷的主要成分;溶解性正磷酸盐占总磷的百分比在接触氧化池出水处达到最大,因此斜管沉淀池处为最佳投药点;溶解性有机磷为次要成分,其迁移变化无明显规律。
Studying the morphology of all levels of phosphorus and its migration law is of great significance to ensure the compliance of wastewater treatment.In this paper,the phosphorus morphology in 5 stages of water samples from a wastewater treatment plant in Wuhan,with contact oxidation-biological filter as the main treatment process,was studied experimentally.This test classifies phosphorus into total phosphorus(TP),dissolved total phosphorus(DTP),and soluble ortho-phosphate(PO4^3--P),granular phosphorus(PP)and dissolved organic phosphorus(DOP)according to the national standard method.The result shows that the main form of phosphorus in the sewage treatment plant is dissolved total phosphorus,the soluble ortho-phosphate is the main component of dissolved total phosphorus;the proportion of dissolved orthophosphate to total phosphorus is the largest at the outlet of the contact oxidation tank,thus the optimal dosing point will be at the inclined tube sedimentation tank;dissolved organic phosphorus is a minor component,and its migration changes have no obvious rules.
作者
黄纤
胡细全
杨蓉
陈美杉
刘刚
Huang Xian;Hu Xiquan;Yang Rong;Chen Meishan;Liu Gang(Resources and Environment College of Hubei University;Wuhan STDM Environment Technology Co.,Ltd.,Wuhan 430062,China)
出处
《中国资源综合利用》
2020年第4期178-184,共7页
China Resources Comprehensive Utilization
基金
教育部产学合作协同育人项目(项目编号:201801314004)的阶段性研究成果之一。
关键词
生物膜
污水处理厂
磷形态
溶解性正磷酸盐
最佳投药点
biofilm
sewage treatment plant
phosphorus form
soluble orthophosphate
optimal dosing point
