{"title":"处理高浓度含氮废水的短程硝化-反硝化空间组合技术：pH 值和碳源的影响","authors":"Shuhe Chen, Yiman Gao, Cheng Wang, Xuemin Ma, Beidou Xi, Wenbing Tan","doi":"10.1002/clen.202300439","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>Short-cut nitrification (SCN) and denitrification (DN) technology is an efficient method for treating high-concentration nitrogen-containing wastewater. However, controlling the reaction conditions in single-reactor systems is difficult. In this study, SCN and DN were performed in separate reactors to investigate the influence of pH on SCN and the effect of carbon sources on DN. The results revealed that a combination of SCN and DN achieved a total nitrogen removal efficiency of 84%. Within a specific pH range (6.5–9.0), the accumulation of nitrite during SCN exhibited an initial increase, followed by a decrease, reaching a maximum at pH 8.5. In addition, this study established two experimental groups to investigate the effect of carbon sources on DN. The blank group (without the addition of a carbon source) exhibited a chemical oxygen demand (COD) concentration of 5.1 mg/L, whereas the control group (sodium acetate used as the carbon source) exhibited a COD concentration of 118.6 mg/L. These results indicate a substantial improvement in DN efficiency with the addition of a carbon source.</p>\n </div>","PeriodicalId":10306,"journal":{"name":"Clean-soil Air Water","volume":"52 11","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Short-Cut Nitrification–Denitrification Spatial Combination Technology for Treating High-Concentration Nitrogen-Containing Wastewater: Influence of pH and Carbon Source\",\"authors\":\"Shuhe Chen, Yiman Gao, Cheng Wang, Xuemin Ma, Beidou Xi, Wenbing Tan\",\"doi\":\"10.1002/clen.202300439\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n <p>Short-cut nitrification (SCN) and denitrification (DN) technology is an efficient method for treating high-concentration nitrogen-containing wastewater. However, controlling the reaction conditions in single-reactor systems is difficult. In this study, SCN and DN were performed in separate reactors to investigate the influence of pH on SCN and the effect of carbon sources on DN. The results revealed that a combination of SCN and DN achieved a total nitrogen removal efficiency of 84%. Within a specific pH range (6.5–9.0), the accumulation of nitrite during SCN exhibited an initial increase, followed by a decrease, reaching a maximum at pH 8.5. In addition, this study established two experimental groups to investigate the effect of carbon sources on DN. The blank group (without the addition of a carbon source) exhibited a chemical oxygen demand (COD) concentration of 5.1 mg/L, whereas the control group (sodium acetate used as the carbon source) exhibited a COD concentration of 118.6 mg/L. These results indicate a substantial improvement in DN efficiency with the addition of a carbon source.</p>\\n </div>\",\"PeriodicalId\":10306,\"journal\":{\"name\":\"Clean-soil Air Water\",\"volume\":\"52 11\",\"pages\":\"\"},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2024-09-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Clean-soil Air Water\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/clen.202300439\",\"RegionNum\":4,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Clean-soil Air Water","FirstCategoryId":"93","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/clen.202300439","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
Short-Cut Nitrification–Denitrification Spatial Combination Technology for Treating High-Concentration Nitrogen-Containing Wastewater: Influence of pH and Carbon Source
Short-cut nitrification (SCN) and denitrification (DN) technology is an efficient method for treating high-concentration nitrogen-containing wastewater. However, controlling the reaction conditions in single-reactor systems is difficult. In this study, SCN and DN were performed in separate reactors to investigate the influence of pH on SCN and the effect of carbon sources on DN. The results revealed that a combination of SCN and DN achieved a total nitrogen removal efficiency of 84%. Within a specific pH range (6.5–9.0), the accumulation of nitrite during SCN exhibited an initial increase, followed by a decrease, reaching a maximum at pH 8.5. In addition, this study established two experimental groups to investigate the effect of carbon sources on DN. The blank group (without the addition of a carbon source) exhibited a chemical oxygen demand (COD) concentration of 5.1 mg/L, whereas the control group (sodium acetate used as the carbon source) exhibited a COD concentration of 118.6 mg/L. These results indicate a substantial improvement in DN efficiency with the addition of a carbon source.
期刊介绍：
CLEAN covers all aspects of Sustainability and Environmental Safety. The journal focuses on organ/human--environment interactions giving interdisciplinary insights on a broad range of topics including air pollution, waste management, the water cycle, and environmental conservation. With a 2019 Journal Impact Factor of 1.603 (Journal Citation Reports (Clarivate Analytics, 2020), the journal publishes an attractive mixture of peer-reviewed scientific reviews, research papers, and short communications.
Papers dealing with environmental sustainability issues from such fields as agriculture, biological sciences, energy, food sciences, geography, geology, meteorology, nutrition, soil and water sciences, etc., are welcome.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
