Academic Journal
Simultaneous control of algal micropollutants based on ball-milled powdered activated carbon in combination with permanganate oxidation and coagulation
| العنوان: | Simultaneous control of algal micropollutants based on ball-milled powdered activated carbon in combination with permanganate oxidation and coagulation |
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| المؤلفون: | CHO, KANGWOO, Ahn, Byung Min, So, Soohyun, Chae, Ana, Song, Kyung Guen |
| المساهمون: | CHO, KANGWOO |
| بيانات النشر: | PERGAMON-ELSEVIER SCIENCE LTD |
| سنة النشر: | 2020 |
| المجموعة: | Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS) |
| مصطلحات موضوعية: | NATURAL ORGANIC-MATTER, KINETIC-MODEL ANALYSIS, MICROCYSTIN-LR, ADSORPTION, 2-METHYLISOBORNEOL, REMOVAL, GEOSMIN, SUPERFINE, WATER, ELIMINATION, Powdered activated carbon, Ball milling, Algal micropollutants, Permanganate, Coagulation |
| الوصف: | This study reports application of KMnO4 pre-oxidation and engineered powdered activated carbon (PAC) adsorption to simultaneously control geosmin, 2-methylisoborneol (2-MIB), and microcystin-LR (MC-LR) in conventional drinking water treatment plants (DWTPs). Pulverization of commercial wood-based PAC (1 mm ZrO2 ball, 12 h) reduced the median size to similar to 6 mu m and resulted in overall enhanced kinetics for adsorption of the algal micropollutants. A series of parametric experiments were performed to estimate minimal contact for KMnO4 (1 mg L-1, 10 minutes) and PAC (20 mg L-1, 40 minutes) prior to coagulation, with the aim to meet guidelines (0.02, 0.02, and 1 mu g L-1 for geosmin, 2-MIB, and MC-LR, respectively) at specific influent concentrations (0.1, 0.1, and 100 mu g L-1) in surface water matrix. Ball-milling of parent PAC with a low oxygen content (similar to 2.5 w/w%) could avoid interferences from/to the KMnO4 pre-oxidation and subsequent coagulation. Pilot-scale experiments confirmed the compatibility of the combined KMnO4 and PAC at existing DWTPs. (C) 2020 Elsevier Ltd. All rights reserved. ; 1 ; 1 ; N ; scie ; scopus |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 0043-1354 |
| Relation: | WATER RESEARCH; Engineering, Environmental; Environmental Sciences; Water Resources; Engineering; Environmental Sciences & Ecology; https://oasis.postech.ac.kr/handle/2014.oak/104129; 42661; WATER RESEARCH, v.185; 000580639800075; 2-s2.0-85089275986 |
| DOI: | 10.1016/j.watres.2020.116263 |
| الاتاحة: | https://oasis.postech.ac.kr/handle/2014.oak/104129 https://doi.org/10.1016/j.watres.2020.116263 |
| رقم الانضمام: | edsbas.EEC5094D |
| قاعدة البيانات: | BASE |
| تدمد: | 00431354 |
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| DOI: | 10.1016/j.watres.2020.116263 |