The Study On The Effects Of Micropollutants Removal By 2 Stage PAC-AGS Process
| Autor: | W. J. Mo, K. S. Choi, H. N. Choi |
|---|---|
| Jazyk: | English<br />Korean |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | 대한환경공학회지, Vol 45, Iss 12, Pp 594-602 (2023) |
| Druh dokumentu: | article |
| ISSN: | 1225-5025 2383-7810 |
| DOI: | 10.4491/KSEE.2023.45.12.594 |
| Popis: | In this study, a lab-scale sequencing batch reactor of effective volume 3.5 L was used to evalute the performance of mircopollutants removal by 2 Stage PAC-AGS process. It consisted of raw water tank, 1st AGS reactor, 2nd PAC-AGS reactor, reservoir, effluent tank. AGS has superior precipitation of SVI30 58 mL/g and high EPS concentration. For combination AGS with PAC, PAC was evenly distributed by attaching to AGS surface. The result of operating, BOD, TOC, SS, T-N, T-P of 2nd PAC-AGS effluent was 1.2 mg/L, 6.0 mg/L, 1.9 mg/L, 15.5 mg/L, 0.13 mg/L. SUVA of influent, 1st AGS effluent, 2nd PAC-AGS effluent was 0.97 L/mg/m-1, 1.30 L/mg/m-1, 2.03 L/mg/m-1 respectively. It means that hydrophilic and small-molecule compounds was mainly removed of DOC. The 14 species of micropollutants was detected in influent from A STP. Micopollutants concentration of influent, effluent of bioreactor from A STP was 68,016.3 ng/L, 710.4 ng/L respectively and the micopollutants concentration of effluent from 2 Stage PAC-AGS process was 18.1 ng/L. It shows that 2 Stage PAC-AGS process has superior performance for micropollutants removal than bioreactor from A STP in operation. Specially, Diclofenac acid, Carbamazepine were known for high RQ(Risk Quotient) was not detected in effluent from 2 Stage PAC-AGS process. |
| Databáze: | Directory of Open Access Journals |
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