{"title":"稻秆燃烧过程中水分含量对多环芳烃排放的影响","authors":"Takashi Korenaga , Xiaoxing Liu , Zuyun Huang","doi":"10.1016/S1465-9972(00)00045-3","DOIUrl":null,"url":null,"abstract":"<div><p>Open burning was carried out for rice straw samples with moisture contents of 0%, 5%, 10%, 15%, 20%, 25%, and 30%, respectively. The 10 EPA priority polycyclic aromatic hydrocarbons (PAHs) compounds plus naphthacene and perylene were analyzed by means of GC/MS. Total particulate PAHs emission varied between 1 and 38 mg/kg for12 species-specific PAHs. Experimental results showed that water has a depression effect on PAHs emission during rice straw burning. The lowest emission of total particulate PAHs was obtained when rice straw with 15% moisture content was burned. 11 species-specific PAHs showed the lowest emissions within 10–20% moisture content exclusive of naphthacene. In addition, higher emission was observed for intermediate molecular weight compounds such as fluoranthene, pyrene, benz[a]anthracene and chrysene, and relatively lower emission for heavier molecular weight compounds such as perylene, benzo[a]pyrene and dibenz[ah]anthracene.</p></div>","PeriodicalId":100235,"journal":{"name":"Chemosphere - Global Change Science","volume":"3 1","pages":"Pages 117-122"},"PeriodicalIF":0.0000,"publicationDate":"2001-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1465-9972(00)00045-3","citationCount":"73","resultStr":"{\"title\":\"The influence of moisture content on polycyclic aromatic hydrocarbons emission during rice straw burning\",\"authors\":\"Takashi Korenaga , Xiaoxing Liu , Zuyun Huang\",\"doi\":\"10.1016/S1465-9972(00)00045-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Open burning was carried out for rice straw samples with moisture contents of 0%, 5%, 10%, 15%, 20%, 25%, and 30%, respectively. The 10 EPA priority polycyclic aromatic hydrocarbons (PAHs) compounds plus naphthacene and perylene were analyzed by means of GC/MS. Total particulate PAHs emission varied between 1 and 38 mg/kg for12 species-specific PAHs. Experimental results showed that water has a depression effect on PAHs emission during rice straw burning. The lowest emission of total particulate PAHs was obtained when rice straw with 15% moisture content was burned. 11 species-specific PAHs showed the lowest emissions within 10–20% moisture content exclusive of naphthacene. In addition, higher emission was observed for intermediate molecular weight compounds such as fluoranthene, pyrene, benz[a]anthracene and chrysene, and relatively lower emission for heavier molecular weight compounds such as perylene, benzo[a]pyrene and dibenz[ah]anthracene.</p></div>\",\"PeriodicalId\":100235,\"journal\":{\"name\":\"Chemosphere - Global Change Science\",\"volume\":\"3 1\",\"pages\":\"Pages 117-122\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2001-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/S1465-9972(00)00045-3\",\"citationCount\":\"73\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Chemosphere - Global Change Science\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1465997200000453\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemosphere - Global Change Science","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1465997200000453","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The influence of moisture content on polycyclic aromatic hydrocarbons emission during rice straw burning
Open burning was carried out for rice straw samples with moisture contents of 0%, 5%, 10%, 15%, 20%, 25%, and 30%, respectively. The 10 EPA priority polycyclic aromatic hydrocarbons (PAHs) compounds plus naphthacene and perylene were analyzed by means of GC/MS. Total particulate PAHs emission varied between 1 and 38 mg/kg for12 species-specific PAHs. Experimental results showed that water has a depression effect on PAHs emission during rice straw burning. The lowest emission of total particulate PAHs was obtained when rice straw with 15% moisture content was burned. 11 species-specific PAHs showed the lowest emissions within 10–20% moisture content exclusive of naphthacene. In addition, higher emission was observed for intermediate molecular weight compounds such as fluoranthene, pyrene, benz[a]anthracene and chrysene, and relatively lower emission for heavier molecular weight compounds such as perylene, benzo[a]pyrene and dibenz[ah]anthracene.
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