摘要
针对污染型景观水体的水质特点,开展强化混凝技术研究,将无机高分子混凝剂聚合氯化铝(PAC)和有机高分子混凝剂阳离子聚丙烯酰胺(CPAM)混凝剂进行复配使用,通过单因素试验,探究适合污染型景观水水质的混凝剂类型、复配混凝剂最优配合比、投加方式、混凝剂投加量和浓度、搅拌速度、沉降时间、适宜pH值范围等,及对絮凝效果的影响。研究复配混凝剂对水中污染物,如浊度、有机物的吸光度(UV254)、化学需氧量(COD)、总磷量(TP)、氨氮、藻类的去除效果,并通过傅里叶红外光谱进一步分析复配混凝形成絮体的结构。
In this paper,based on the characteristics of water quality of polluted landscape water,the research on intensified coagulation technology is carried out. By using the mixture of the inorganic polymer coagulant polymerize aluminum chloride( PAC) and organic polymer flocculant cationic polyacrylamide( CPAM),the coagulant type,the optimal ratio of the coagulant,the dosage method,the dosage and the concentration of coagulant,the stirring speed,the settling time and the suitable pH range to the effect of flocculation are explored, through single factor experiment. The removal effect of coagulant on pollutants in water,such as turbidity,UV254,COD,TP,ammonia nitrogen and algae,are researched,the structure of flocs formed by compound coagulant is further analyzed by FTIR.
作者
吕汶汛
马竞
乔稳超
王洪林
Lü Wenxun;MA Jing;QIAO Wenchao;WANG Honglin(China Construction Second Engineering Bureau Co.,Ltd.,Beijing 101101,China;North China Municipal Engineering Design&Research Institute Co.,Ltd.,Tianjin 300202,China)
出处
《施工技术》
CAS
2020年第18期93-98,共6页
Construction Technology
基金
中建二局科技研发课题:水环境综合治理技术研究与应用(180001)。
关键词
景观水
混凝
污染
水处理
去除率
landscape water
coagulation
pollution
water treatment
removal rate
