底泥氮磷释放的影响因素及控制方法  

Influencing Factors and Controlling Methods of Nitrogen and Phosphorus Release from Sediments

作　　者：夏勇锋[1] 何少华[1] 凌静[1] 林振波[1] 皮艾南[1] 

机构地区：[1]南华大学城市建设学院,湖南衡阳421001

出　　处：《水科学与工程技术》2012年第6期46-48,共3页Water Sciences and Engineering Technology

摘　　要：归纳了溶解氧、pH、温度和水体扰动等因素对底泥氮磷释放速率、释放量等方面的影响,分析各因素的影响机理。介绍了控制底泥氮磷释放的原位修复法和异位修复法,分析了各自的优缺点,原位修复法中的覆盖法及其控制效果,从实验可以看出天然或改性的沸石、方解石和凹凸棒石等物质均能在一定程度上控制底泥氮磷的释放。Dissolved Oxygen,pH,temperature and water disturbance that influence the release speed and quantity of nitro- gen and phosphorus from sediments were summarized, the influence mechanism of every factor was analyzed. The in situ repair method and ectopic repair method to control release of nitrogen and phosphorus from sediments were briefly intro- duced, and advantages and disadvantages were analyzed in this paper. Cover method of in situ repair method and its con- trol effect were detailed introduced. We can draw the conclusion from the experiment that natural or modified zeolite,calcite and attapulgite could control the release of nitrogen and phosphorus from sediments.

关 键 词：底泥 氮磷 释放 

分 类 号：X703[环境科学与工程—环境工程]