YuHai Sun, ZhanGuo Lu, Yang Huang, ZiKe Qiu, HanTing Huang, ChangMing Du
{"title":"利用排放自由基处理燃煤烟气喷淋废水的研究","authors":"YuHai Sun, ZhanGuo Lu, Yang Huang, ZiKe Qiu, HanTing Huang, ChangMing Du","doi":"10.1007/s42768-022-00104-4","DOIUrl":null,"url":null,"abstract":"<div><p>The coal-fired flue gas spraying wastewater is a kind of refractory mixed wastewater with poor biodegradability. In this study, the degradation of model coal-fired flue gas spraying wastewater was studied by using discharge free radicals produced by double-dielectric barrier discharge. The degradation rate of pollutants, chemical oxygen demand removal rate and other indicators were detected, and the influence of different conditions on the degradation effect was analyzed. The optimal parameters are as follows: residence time 120 min, input power 170.0 W, initial pH value 3.79, and aeration rate 1.8 mL/min. The initial concentrations of acetone, formaldehyde, chloroform, benzene and toluene were 100, 100, 100, and 100 mg/L, respectively. Furthermore, it is proved that the discharge area is independent of the degradation rate. Through the analysis of the mechanism, it is found that ·OH is an important factor affecting the degradation rate of pollutants in model coal-fired flue gas spraying wastewater.</p></div>","PeriodicalId":807,"journal":{"name":"Waste Disposal & Sustainable Energy","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2022-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42768-022-00104-4.pdf","citationCount":"2","resultStr":"{\"title\":\"Study on the treatment of spraying wastewater from coal-fired flue gas by using discharge free radicals\",\"authors\":\"YuHai Sun, ZhanGuo Lu, Yang Huang, ZiKe Qiu, HanTing Huang, ChangMing Du\",\"doi\":\"10.1007/s42768-022-00104-4\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The coal-fired flue gas spraying wastewater is a kind of refractory mixed wastewater with poor biodegradability. In this study, the degradation of model coal-fired flue gas spraying wastewater was studied by using discharge free radicals produced by double-dielectric barrier discharge. The degradation rate of pollutants, chemical oxygen demand removal rate and other indicators were detected, and the influence of different conditions on the degradation effect was analyzed. The optimal parameters are as follows: residence time 120 min, input power 170.0 W, initial pH value 3.79, and aeration rate 1.8 mL/min. The initial concentrations of acetone, formaldehyde, chloroform, benzene and toluene were 100, 100, 100, and 100 mg/L, respectively. Furthermore, it is proved that the discharge area is independent of the degradation rate. Through the analysis of the mechanism, it is found that ·OH is an important factor affecting the degradation rate of pollutants in model coal-fired flue gas spraying wastewater.</p></div>\",\"PeriodicalId\":807,\"journal\":{\"name\":\"Waste Disposal & Sustainable Energy\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-07-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://link.springer.com/content/pdf/10.1007/s42768-022-00104-4.pdf\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Waste Disposal & Sustainable Energy\",\"FirstCategoryId\":\"6\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s42768-022-00104-4\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Waste Disposal & Sustainable Energy","FirstCategoryId":"6","ListUrlMain":"https://link.springer.com/article/10.1007/s42768-022-00104-4","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Study on the treatment of spraying wastewater from coal-fired flue gas by using discharge free radicals
The coal-fired flue gas spraying wastewater is a kind of refractory mixed wastewater with poor biodegradability. In this study, the degradation of model coal-fired flue gas spraying wastewater was studied by using discharge free radicals produced by double-dielectric barrier discharge. The degradation rate of pollutants, chemical oxygen demand removal rate and other indicators were detected, and the influence of different conditions on the degradation effect was analyzed. The optimal parameters are as follows: residence time 120 min, input power 170.0 W, initial pH value 3.79, and aeration rate 1.8 mL/min. The initial concentrations of acetone, formaldehyde, chloroform, benzene and toluene were 100, 100, 100, and 100 mg/L, respectively. Furthermore, it is proved that the discharge area is independent of the degradation rate. Through the analysis of the mechanism, it is found that ·OH is an important factor affecting the degradation rate of pollutants in model coal-fired flue gas spraying wastewater.