中文摘要：

采用透射电镜法及光子相关光谱法对自制的氧化性聚硅酸铁（PSF）与聚合硫酸铁（PFS）进行微观表征，同时以254nm的吸光度A（UV254）、溶解性有机碳质量浓度c（DOC）、色度及比紫外吸光值A（SUV254）作为溶解性有机物（DOM）的检测指标，对PSF降低以上各指标与浊度去除效果及相关性进行研究。结果表明：PSF由很短的链节样物种及枝状结构组成，形态尺寸及分维数较大，并且较稳定；PSF具有良好的混凝效果，对浊度及色度的去除率超过95％，对A（UV254），A（SUV254），c（DOC）的去除率分别达到85％，80％，60％；用于评价PSF去除DOM性能的各指标间及其与余浊之间均具有良好的相关性。

英文摘要：

The characteristics of self-prepared oxidization poly-silicon-ferric sulfate （PSF） and poly-ferric sulfate（PFS） were explored with transmission electron microscope（TEM） and photon correlation spectra （PCS）. Taking the absorbance at 254 nm（ A （ UV2s4 ） ） , mass concentration of dissolved organic carbon （ c （ DOC ） ） , color, A （ SUV254 ） as testing indexes of dissolved organic matters（DOM） , the correlation between removal effect of PSF and turbidity was studied. The results indicate that PSF contains much short chains-like matters and multi-branched structures with larger size, bigger fractal dimension andstable morphology. PSF has better coagulation performance, more than 95% and 60% removal efficiency for turbidity and color, and 85%, 80% and 60% removal for A（ UV254 ）, A（ SUV254 ） and c（ DOC）, respectively. The good correlation between the evaluation indexes of removal DOM by PSF and turbidity can be obtained.