{"title":"关于全面改进A²/O工艺脱氮、脱磷效果评价的通知","authors":"Yang Zhiquan, Zhou Shao-qi","doi":"10.1109/ICBBE.2011.5781077","DOIUrl":null,"url":null,"abstract":"A modified A2/O biological system is applied for the sewage treatment in a full-scale WWTP. Compared with conventional A2/O process, this modified A2/O process adds a pre anaerobic stage, and introduces inflow into pre-anaerobic, anaerobic and anoxic tank simultaneously. These measures bring about a further improvement of nitrogen and phosphorus in urban wastewater. The monitoring results for one year show that the influent concentrations of BOD, NH4-N, TN, TP are 21.9-263.0, 16.3-30.8, 9.7-668 and 1.0-11.3 mg L-l, respectively. After the treatment of modified A2/O process, the average effluent concentrations of BOD, NH4-N, TN, TP are 6.5, 0.6, 10.4, 0.6 mg L-l, and the average removal rates are 93.5%, 96.9%, 61.5% and 78.9%, respectively. The effluent quality meets the 1 B level discharging criteria in China. The operation results show that the modified A2/O process can achieve a high reduction of nitrogen and phosphorus in spite of the fluctuation of influent, and can be widely used in municipal wastewater treatment plants.","PeriodicalId":6438,"journal":{"name":"2011 5th International Conference on Bioinformatics and Biomedical Engineering","volume":"46 1","pages":"1-4"},"PeriodicalIF":0.0000,"publicationDate":"2011-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Notice of RetractionEvaluation of Nitrogen and Phosphate Removal in Full-Scale Modified A²/O Process\",\"authors\":\"Yang Zhiquan, Zhou Shao-qi\",\"doi\":\"10.1109/ICBBE.2011.5781077\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A modified A2/O biological system is applied for the sewage treatment in a full-scale WWTP. Compared with conventional A2/O process, this modified A2/O process adds a pre anaerobic stage, and introduces inflow into pre-anaerobic, anaerobic and anoxic tank simultaneously. These measures bring about a further improvement of nitrogen and phosphorus in urban wastewater. The monitoring results for one year show that the influent concentrations of BOD, NH4-N, TN, TP are 21.9-263.0, 16.3-30.8, 9.7-668 and 1.0-11.3 mg L-l, respectively. After the treatment of modified A2/O process, the average effluent concentrations of BOD, NH4-N, TN, TP are 6.5, 0.6, 10.4, 0.6 mg L-l, and the average removal rates are 93.5%, 96.9%, 61.5% and 78.9%, respectively. The effluent quality meets the 1 B level discharging criteria in China. The operation results show that the modified A2/O process can achieve a high reduction of nitrogen and phosphorus in spite of the fluctuation of influent, and can be widely used in municipal wastewater treatment plants.\",\"PeriodicalId\":6438,\"journal\":{\"name\":\"2011 5th International Conference on Bioinformatics and Biomedical Engineering\",\"volume\":\"46 1\",\"pages\":\"1-4\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2011-05-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2011 5th International Conference on Bioinformatics and Biomedical Engineering\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICBBE.2011.5781077\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2011 5th International Conference on Bioinformatics and Biomedical Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICBBE.2011.5781077","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Notice of RetractionEvaluation of Nitrogen and Phosphate Removal in Full-Scale Modified A²/O Process
A modified A2/O biological system is applied for the sewage treatment in a full-scale WWTP. Compared with conventional A2/O process, this modified A2/O process adds a pre anaerobic stage, and introduces inflow into pre-anaerobic, anaerobic and anoxic tank simultaneously. These measures bring about a further improvement of nitrogen and phosphorus in urban wastewater. The monitoring results for one year show that the influent concentrations of BOD, NH4-N, TN, TP are 21.9-263.0, 16.3-30.8, 9.7-668 and 1.0-11.3 mg L-l, respectively. After the treatment of modified A2/O process, the average effluent concentrations of BOD, NH4-N, TN, TP are 6.5, 0.6, 10.4, 0.6 mg L-l, and the average removal rates are 93.5%, 96.9%, 61.5% and 78.9%, respectively. The effluent quality meets the 1 B level discharging criteria in China. The operation results show that the modified A2/O process can achieve a high reduction of nitrogen and phosphorus in spite of the fluctuation of influent, and can be widely used in municipal wastewater treatment plants.
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