本研究的目的是研究水质参数和臭氧剂量对臭氧与天然有机物相互作用过程中甲醛生成的影响。选择腐殖酸和富里酸作为天然有机物模型，主要是因为它们是天然有机物的主要成分，可能是醛类前体物质的主要来源。在各种条件下，对天然腐殖酸和富里酸的合成溶液进行了臭氧氧化试验。 使用低总有机碳（TOC）水制备试验溶液，以达到背景中2-3 ug/L的甲醛浓度。MQ超低TOC系统将去离子水暴露在185和254 nm波长的紫外光下，从而氧化有机化合物并杀死细菌。纯化水随后通过一个超滤（UF）模块，该模块充当胶体、颗粒和分子量大于5000道尔顿的有机分子的屏障。 本研究试图提供有关工艺参数和水质特征对腐殖物质氧化和甲醛生成的影响的具体信息。

The objective of this study was to investigate the effect of water quality parameters and ozone dosage on formaldehyde formation during interaction of ozone with natural organic matter. Humic and fulvic acids are selected as natural organic matter models, mainly because they are the major constituents of natural organic matter, and they may be the primary sources of precursor material for aldehydes. Ozonation was tested on synthetic solutions of natural humic and fulvic acids under various conditions. MQ-Untra Low total organic carbon (TOC) water was used to prepare the test solutions in order to achieve a 2-3 ug/L formaldehyde concentration in the background. MQ-Ultra Low TOC system exposes the deionized water to UV light at both 185 and 254 nm wavelengths, thus oxidizing organic compounds and killing bacteria. Purified water then passes through an Ultrafiltration (UF) module, which acts as a barrier to colloids, particles and organic molecules with a molecular weight greater than 5000 Dalton. This research attempts to provide specific information on the effect of process parameters and water quality characteristics on oxidation of humic substances and generation of formaldehyde.