泥沙研究Issue(6)：64-68,5.
泥沙表面特性及其对磷吸附的影响
Surface properties of sediments and its effect on phosphorus adsorption
摘要
Abstract
Sediments, taken from the Nantong reach of the Yangtze River, were divided into four parts ,namely Dl < 0.03mm, 0.03 ≤ D2 < 0.06mm, 0.06 ≤ D3 < 0.09mm, and 0. 09 ≤ D4 < 0. 12mm,respectively. The oxide and organic matters were removed from the sediments via chemical extraction techniques. The surface properties of sediments with different diameters were measured, including gradation curve, specific surface, aperture volume, etc. , and the phosphorus equilibrium adsorption to these sediments were investigated. The results show that there exists an exponential relationship between the median diameter D50 and the specific surface Sg of sediment. The increase rate of the specific surface is slower from D4 to D2 and becomes quicker from D2 to Dl. The phosphorus equilibrium adsorption decreases along with the increase of the median diameter D50 o关键词
泥沙颗粒/比表面积/磷/吸附Key words
sediment/ specific surface/ phosphorus/ adsorption分类
建筑与水利引用本文复制引用
肖洋,陆奇,成浩科,朱小连,唐洪武..泥沙表面特性及其对磷吸附的影响[J].泥沙研究,2011,(6):64-68,5.基金项目
国家科技支撑计划课题九(2008BAB29B09) （2008BAB29B09）
教育部博士点新教师基金(200802941027) （200802941027）
国家自然科学基金资助项目(51179055、50879020) （51179055、50879020）
中央高校基本科研业务费专项资金资助(2009B07614) （2009B07614）
国家重点实验室专项经费资助项目(2010585512) （2010585512）
