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中文摘要：
采用批量平衡实验，研究了九龙江口红树林沉积物对典型多环芳烃（PAHs）萘（Nap）、蒽（Ant）和苯并[a]芘（BaP）的吸附特性，以及温度、盐度及沉积物不同尺寸团聚体对吸附的影响．结果表明，3种PAHs在沉积物上的吸附分为快速吸附和慢速吸附两个阶段；Freundlich模型能较好地描述其吸附行为，吸附呈非线性；沉积物吸附3种PAHs的强弱顺序为：BaP〉Ant〉Nap，其吸附容量随温度升高而减小，随盐度增加而增加；不同尺寸团聚体对PAHs的吸附容量顺序为0．063—0.25〉（〈0．063）〉0．25一1．0〉（〉1．0）mm，并与其碳黑含量相关。
英文摘要：
Batch isotherm experiments were performed to study the sorption characteristics of typical polycyclic aromatic hydrocarbons （PAHs）, naphthalene, anthracene and benzo [ a ] pyrene on mangrove sediment from Jiulong River estuary. The effects of water temperature, salinity and sediment aggregates with different sizes on the sorption of the three PAHs were investigated. The results demonstrated that the sorption of the three PAHs in the mangrove sediment was a two-step process, including a rapid sorption process and then a slow sorption process. The sorption process can be well described by Freundlich model, and the sorption of the three PAHs on sediment was nonlinear. The sorption capacities of the PAHs on the sediment were in the order of benzo[ a ] pyrene 〉 anthracene 〉 naphthalene. The sorption capacities of the three PAHs on sediment decreased with increasing temperature, but increased with salinity. The sorption capacities of PAHs on sediment aggregates with different sizes were in the order of 0. 063---0. 25 〉 （ 〈 0.063） 〉 0.25--1.0 〉 （ 〉 1.0） mm, and it was due to the difference of black carbon content in sediment aggregates.
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