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中文摘要：
对加入FeCl3的底泥在扰动条件下对外源磷的吸收效果进行研究,并通过内源磷数量分布分析了固定效果.磷吸附等温线结果表明,对FeCl3质量百分比占2%的底泥而言,磷吸附最大值、磷平衡浓度、磷饱和度分别为未加入FeCl3的原底泥的273%、85.7%、60.7%.磷吸附实验结果表明,加入FeCl3的底泥对上覆水中磷的吸收能力增加.FeCl3质量百分比占1%和2%的底泥对外源磷的吸收量分别为未加入FeCl3的原底泥的150%和210%,而达到饱和时间也分别从17 d延长至26 d和35 d.内源磷的主要分布为Fe/Al-P（57.1%—63.4%）、HCl-P（19.9%—28.4%）、NH4Cl-P（12.9%—15.2%）.由于FeCl3的加入抑制了Fe/Al-P向HCl-P的转化,加入的外源磷主要形成了藻类可利用磷（AAP）.
英文摘要：
Phosphorus adsorption was investigated by sediments with ferric chloride addition under sediment disturbance conditions and phosphorus immobility was analyzed by the distribution of sedimentary phosphorus forms. Phosphorus adsorption isotherm results show that phosphorus adsorption maximum, equilibrium solution phosphorus concentration and phosphorus saturation in the sediments with 2% ferric chloride addition were 273%, 85.7% and 60. 6% of that in the sediments without ferric chloride addition. The increase of phosphorus adsorption by sediments with ferric chloride addition was observed in the experiments. The accumulative adsorption of external phosphorus by the sediments with 1% and 2% ferric chloride addition was 150% and 210% of that in the sediments without ferric chloride addition. In addition, the time of phosphorus saturation extended from 17 d （without ferric chloride addition） to 26 d （1% ferric chloride addition） and 35 d （2% ferric chloride addition ）, respectively. The rank order of sedimentary phosphorus forms was Fe/A1-P （ 57. 1%---63.4%） , HC1-P （19.9%--28.4%） and NH4C1-P （ 12. 9%--15.2%）. The incorporated phosphorus into sediments accorded mainly algae available phosphorus. The main reason is that the transformation from Fe/A1-P to HC1-P might be inhibited due to ferric chloride addition.
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