CAJ | 학술논문

为了研究天津市中心城区污水泵站恶臭排放特征,分别在夏、秋、冬3季对4座泵站的进水格栅和出水口进行采样,采用3点比较式臭袋法分析臭气浓度,采用冷阱富集-GC/MS技术分析恶臭物质组成和含量。结果表明,污水泵站6个点位共检出包括烷烃、烯烃、芳香烃、卤代烃、含氧烃、有机硫以及无机气体在内的7类50多种物质,其中无机气体和含氧烃是主要成分。污水泵站广泛存在的污染物质共8种：苯、甲苯、乙苯、甲醛、乙醛、甲硫醇、氨和硫化氢,其中硫化氢、甲硫醇和甲醛的浓度较高。污水泵站各季节的恶臭污染都较严重,实测臭气浓度基本上都超过2000,H2S、甲硫醇和乙醛对恶臭污染贡献比较大,其中H 2S是最主要的致臭物质。
위료연구천진시중심성구오수빙참악취배방특정,분별재하、추、동3계대4좌빙참적진수격책화출수구진행채양,채용3점비교식취대법분석취기농도,채용랭정부집-GC/MS기술분석악취물질조성화함량。결과표명,오수빙참6개점위공검출포괄완경、희경、방향경、서대경、함양경、유궤류이급무궤기체재내적7류50다충물질,기중무궤기체화함양경시주요성분。오수빙참엄범존재적오염물질공8충：분、갑분、을분、갑철、을철、갑류순、안화류화경,기중류화경、갑류순화갑철적농도교고。오수빙참각계절적악취오염도교엄중,실측취기농도기본상도초과2000,H2S、갑류순화을철대악취오염공헌비교대,기중H 2S시최주요적치취물질。
In order to study odor emission characteris tics of sewage pumping stations in central district of Tianjin, odor from inlet and outlet grid of four pumping stations were collected in summer,autumn and winter,respectively.Odor concentration was analyzed by triangle odor bags method. Cold trap enrichment-GC/MS was used to determine the composition and content of malodorous substances. The results showed that more than 50 kinds of chemicals were detected in 6 sampling points, including alkanes, alkenes, aromatic hydrocarbons, halogenated hydrocarbons, oxygenated hydrocarbons, organic sulfur and inorganic gases. Inorganic gases and oxygenated hydrocarbons were the main components. 8 kinds of substances were identified as widespread, which are benzene, toluene, ethyl benzene, formaldehyde, acetaldehyde, methyl mercaptan, ammonia and hydrogen sulfide. And the concentration of hydrogen sulfide, methyl mercaptan and formaldehyde was much higher. Odor pollution was serious in each season of these four sewage pumping stations, because odor concentrations of all samples were almost above 2000. The main odorants are hydrogen sulfide, methyl mercaptan and acetaldehyde, where hydrogen sulfide has made the greatest contribution.