文献类型：期刊文献

中文题名：河道沉积物中磷的分布、吸附及释放规律研究

英文题名：Distribution,adsorption and releasing law of phosphate in channel sediments

作者：张卫[1,2];林匡飞[1,2];张巍[2];李辉[2];崔心红[3];王学东[4];郭美锦[5]

机构：[1]上海市功能性材料化学重点实验室,上海200237;[2]华东理工大学资源与环境工程学院,国家环境保护化工过程环境风险评价与控制重点实验室,上海200237;[3]上海市园林科学研究所,上海200232;[4]温州医学院环境与公共卫生学院,浙江温州325035;[5]华东理工大学生物工程学院,上海200237

年份：2011

卷号：33

期号：10

起止页码：1

中文期刊名：环境污染与防治

外文期刊名：Environmental Pollution & Control

收录：CSTPCD;;北大核心:【北大核心2008】；CSCD:【CSCD_E2011_2012】；

基金：国家自然科学基金资助项目(No.40901148、No.41003031);国家水体污染控制与治理科技重大专项(No.2012ZX07115);国家“973计划”项目(No.2011CB200904);国家林业公益性行业科研专项(No.201104088);中央高校基本科研业务费专项(No.WB0911011);温州市重大科技专项(No.Z090921421)

语种：中文

中文关键词：河道沉积物;磷;分布;吸附;释放

外文关键词：channel sediment; phosphate; distribution; adsorption; release

摘要：为科学评价磷在河道沉积物中的环境行为,在模拟条件下研究了上海市进木港和苏州河沉积物中磷的分布形态、吸附特征及释放规律。结果表明:(1)2种沉积物中碎屑钙磷(De-P)浓度最高,闭蓄态磷(Oc-P)次之,其他形态磷浓度相对较低,而活性磷中以铁磷(Fe-P)为主;(2)2种沉积物对磷的吸附均符合线性方程,在4.0h时基本达到平衡;(3)沉积物中磷释放量主要来自于第1次提取;(4)温度升高促进了2种沉积物中磷的释放;(5)不同pH条件下最大磷释放量顺序为酸性>碱性>中性。
In order to scientifically evaluate the environmental behavior of phosphate in urban channel sediments,the distribution,adsorption and releasing law of phosphate in Jinmu Harbor sediment and Suzhou River sediments of Shanghai were studied.The conclusions were as follows：（1） The content of De-P and Oc-P were highest in two sediments,other species were less,and the Fe-P had most content among labile phosphate;（2） The adsorption isotherms of phosphate all accorded with linear equation in two sediments and achieved to the equilibrium after 4.0 h;（3） The total release amount of phosphate was distributed to the first extraction;（4） With the increase of temperature,total phosphate release were forwarded;（5） Acidic environment was more favorable for total phosphate release than alkaline environment,and neutral condition was least.