天然有机物（NOM）组分；胶体、疏水性（HPO）、透明性（TPI）， 以及作为外来来源从天然地表水中分离出来的亲水性（HPI）组分， 以藻类有机物（AOM）的形式从蓝藻中提取，作为 研究了低压膜过滤中的自生源。最 有机胶体导致了显著的通量下降，而中间通量下降则是由有机胶体引起的 通过AOM从地面和超声波处理的蓝藻中提取（分离）。三维EEM分析 FTIR分析表明，胶体和AOM含有蛋白质样物质 重叠峰与蛋白质中的肽键和多糖中的醇有关。 HP-SEC的研究结果也支持了高含量的表面大分子化合物 胶体部分。假设二价阳离子（Ca²⁺）的存在通过 NOM和酸通过减少分子电荷，几乎没有显示出效果。形态分析 表明被污染的超滤膜的表面形貌升高，这可能是由于 NOM在膜表面的沉积。微滤（MF）膜的孔隙减少， 表明NOM骨料堵塞了孔隙。 包括18个参考文献、表格、图表。

Natural organic matter (NOM) fractions; colloids, and hydrophobic (HPO), transphilic (TPI), and hydrophilic (HPI) fractions, isolated from a natural surface water as an allochthonous source, and in the form of algal organic matter (AOM) derived from blue green algae as an autochthonous source, were investigated in low pressure membrane filtration. The most significant flux decline was caused by organic colloids, with an intermediate flux decline caused by AOM derived (isolated) from ground and sonicated blue green algae. 3-D EEM analyses indicated that colloids and AOM contain protein-like substances, and FTIR analyses showed overlapping peaks associated with the peptide bonds in proteins and alcohols in polysaccharides. HP-SEC results also support a high content of apparently macromolecular compounds in the colloid fraction. The presence of a divalent cation (Ca²⁺), hypothesized to enhance fouling by NOM and acids by a reduction in molecular charge, showed little effect. Morphological analyses indicated that the surface topography of fouled ultrafiltration (UF) membranes was elevated, presumably due to deposition of NOM on the membrane surface. The pores of microfiltration (MF) membranes were reduced, suggesting pore blockage by NOM aggregates. Includes 18 references, tables, figures.