环境保护科学2024，Vol.50Issue(1)：96-103,8.DOI:10.16803/j.cnki.issn.1004-6216.202301011
扩散控制条件下铝基混凝剂除低浓度磷的效果研究
Removal effect of low concentration phosphorus with Al-based coagulant under diffusion control
摘要
Abstract
The study compared the removal characteristics of different phosphorus forms at different depths with different concentrations of AlCl3 and Al13 aluminium-based coagulants.AlCl3 showed excellent phosphorus control,with AlCl3 reducing total phosphorus(TP)to 9 μg/L after 2 h of sedimentation and reducing dissolved phosphorus in a shorter period of time.Both AlCl3 and Al13 contributed to the removal of particulate phosphorus from the surface water.At pH=7.5,phosphorus was removed in the form of Al-P precipitation.AlCl3 had a better ability to remove organic matter and was able to reduce the DOC concentration rapidly at 0.5 h.The results of the study can provide a reference for the selection of suitable phosphorus control agents and dosage,and help to develop in-situ phosphorus pollution control strategies and maintain ecological health.关键词
扩散控制/铝基混凝剂/磷形态/混凝/除磷Key words
diffusion/aluminum-based coagulants/phosphorus morphology/coagulation/phosphorus removal分类
资源环境引用本文复制引用
李能能,吴福雨,张龙,樊小东,马彪,高磊,徐慧,黄晨慧,王希..扩散控制条件下铝基混凝剂除低浓度磷的效果研究[J].环境保护科学,2024,50(1):96-103,8.基金项目
国家自然科学基金委员会重点项目(52030003) （52030003）
