Continuous Removal of Organic Micropollutants from Municipal Treated Effluents and Studying Kinetics of Removal of Methylene Blue as a Model Micropollutant Component in Batch and Continuous Flow Systems | ||
| Egyptian Journal of Chemistry | ||
| Volume 67, Issue 8, August 2024, Pages 331-350 PDF (1.63 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejchem.2024.256879.9012 | ||
| Authors | ||
| Ibrahim Abdelfattah* 1, 2; Peter Maurer2; G. Duelli2; Ashraf M. El-Shamy3 | ||
| 1Water Pollution Research Department, National Research Centre, El-Bohouth St. 33, Dokki, P.O. 12622, Giza, Egypt | ||
| 2Institute for Sanitary Engineering, Water Quality and Solid Waste Management (ISWA), Bandtäle 2, D - 70569 Stuttgart, Germany | ||
| 3Physical Chemistry Department, Electrochemistry and Corrosion Lab., National Research Centre, El-Bohouth St. 33, Dokki, P.O. 12622, Giza, Egypt Giza, Egypt | ||
| Abstract | ||
| This research investigates the effectiveness of granular activated carbon (GAC) in eradicating micropollutants (pharmaceuticals, dyes, pesticides….etc.) from treated effluents of municipal wastewater treatment plants. By using methylene blue as a model representative organic micropollutant, the study examines the mechanisms involved in its removal. Through batch experiments, the study demonstrates impressive removal efficiency; displaying an absorption capacity of 349.3 mg/g. Factors such as contact time, initial dye concentration and GAC particle size have an impact on the removal efficiency while pH levels (2-11) minimally affects the absorption process. The kinetics are analyzed utilizing Langmuir and Freundlich models. In continuous flow experiments, lab-scale GAC filters sustain remarkable removal efficiency for the target across various flow rates. The study also addresses scalability, revealing a reduction in removal percentages from 93.9% to 88.8% as flow rates increase from (1m3/h) to (5m3/h). These discoveries provide crucial insights into devising effective strategies to combat the potential dangers posed by micropollutants. | ||
| Keywords | ||
| Municipal effluents; Micropollutants; Continuous Removal; Granular Activated Carbon (GAC); Methylene Blue; Optimizations and Kinetics | ||
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