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将水中的有机组分划分为悬浮性有机物（ＳＯＣ）、溶解性可吸附有机物（ＥＯＣ）及溶解性不可吸附有机物（ＮＥＯＣ）三类。分别用Ｇ３ 型耐酸过滤漏斗及ＧＤＸ－５０２ 树脂分离并富集炼油厂生化处理进水及出水中的ＳＯＣ及ＥＯＣ。漏斗滤出的和ＧＤＸ－５０２树脂富集的有机物分别用二氯甲烷洗脱和Ｓｏｘｈｌｅｔ提取。提取物经干燥、浓缩后，用ＧＣ／ＭＳ进行分析。结果表明：此方法对炼油厂生化处理废水中有机组分的富集效率为５３．６％ ～７８％ （以ＴＯＣ 计）或４７．７％ ～６９．３％ （以ＣＯＤ计）；生化处理Ａ 段进水及出水中鉴定出的有机组分基本相同，ＳＯＣ主要是Ｃ９ ～Ｃ２９ 正构烷烃，ＥＯＣ主要是苯酚类化合物；Ｏ 段及生物碳段出水中ＳＯＣ及ＥＯＣ组成相似，其中邻苯二甲酸二正丁酯相对含量较高；废水经生化处理后，鉴定出的有机组分由进水的１２０ 种减至出水的２２ 种，进水中相对含量较高的苯酚类化合物基本被去除，其它类型的有机物也被去除绝大部分，外排水中的ＣＯＤ 满足排放标准。
The organic components in water are divided into three categories: suspended organic matter (SOC), dissolved organic matter (EOC) and dissolved non-adsorbable organic matter (NEOC). Separating and enriching the SOC and EOC in influent and effluent of biological treatment of refinery with G3 acid-proof filter funnel and GDX-502 resin respectively. The funnel-filtered and GDX-502 resin-enriched organics were eluted with dichloromethane and Soxhlet respectively. Extracts were dried, concentrated and analyzed by GC / MS. The results showed that the enrichment efficiency of this method was 53.6% ~ 78% (as TOC) or 47.7% ~ 69.3% (as COD) for biochemical treatment of wastewater in refinery. The biochemical treatment The organic components identified in the influent and effluent of section A were basically the same, the SOC mainly consisted of C9 -C29 n-alkanes, and the EOC mainly consisted of phenols. The SOC and EOC in the effluent of section O and biochar were similar, of which phthalic acid The relative content of di-n-butyl is higher. After the biochemical treatment of wastewater, the identified organic components decreased from 120 kinds of influent water to 22 kinds of effluent water, and the phenol compounds with relatively high influent water were basically removed. The type of organic matter is also removed most of the COD in the effluent to meet emission standards.