泥沙研究2023，Vol.48Issue(6)：1-8,8.DOI:10.16239/j.cnki.0468-155x.2023.06.001
泥沙级配与成分对磷吸附作用影响试验研究
Experimental study on the effect of sediment gradation and component on phosphorus adsorption
摘要
Abstract
Sediment is an important carrier of phosphorus(P)in waters.It is of great importance to investigate the effects of sediment characteristics on P adsorption as it will help understanding the transport process of P in waters.A series of constant temperature oscillation experiments were conducted based on on-site sediment collected from Jiangsu coastal shoals,the equilibrium P adsorption capacities of sediment with different median particle sizes and clay contents,and the solid concentration effects of coarse and fine sediment were studied.The results show that clay content is the key factor on the P adsorption capacity of sediment.Under the same median particle size,sediment with higher clay content has stronger P adsorbability.Therefore,it is more accurate to establish the equation of P adsorption using clay content as the variable instead of the median particle sizes.The solid concentration effect will lead to the decrease of P adsorption capacity with per unit mass of either coarse or fine sediment,although there is a difference in the response trend between the two different sediment particles when the sediment concentration ranges from 0.5 to 2.5 g/L.关键词
泥沙级配/黏土含量/磷/吸附Key words
sediment grading/clay content/phosphorus/adsorption分类
建筑与水利引用本文复制引用
尧印鹏,许春阳,陈永平,储鏖..泥沙级配与成分对磷吸附作用影响试验研究[J].泥沙研究,2023,48(6):1-8,8.基金项目
国家自然科学基金项目(51709084,51979076) （51709084,51979076）
港口航道泥沙工程交通行业重点实验室开放基金项目(YK222001-6) （YK222001-6）
