TY - JOUR
T1 - Removal of amoxicillin and cefuroxime axetil by advanced membranes technology, activated carbon and micelle-clay complex
AU - Awwad, Mohammad
AU - Al-Rimawi, Fuad
AU - Dajani, Khuloud Jamal Khayyat
AU - Khamis, Mustafa
AU - Nir, Shlomo
AU - Karaman, Rafik
N1 - Publisher Copyright:
© 2015 Taylor & Francis.
PY - 2015/8/18
Y1 - 2015/8/18
N2 - Two antibacterials, amoxicillin trihydrate and cefuroxime axetil spiked into wastewater were completely removed by sequential wastewater treatment plant's membranes, which included activated sludge, ultrafiltration (hollow fibre and spiral wound membranes with 100 and 20 kDa cut-offs), activated carbon column and reverse osmosis. Adsorption isotherms in synthetic water which employed activated carbon and micelle-clay complex (octadecyltrimethylammonium-montmorillonite) as adsorbents fitted the Langmuir equation. Qmax of 100 and 90.9 mg g-1, and K values of 0.158 and 0.229 L mg-1 were obtained for amoxicillin trihydrate using activated carbon and micelle-clay complex, respectively. Filtration of antibacterials in the ppm range, which yielded variable degrees of removal depending on the volumes passed and flow rates, was simulated and capacities for the ppb range were estimated. Stability study in pure water and wastewater revealed that amoxicillin was totally stable for one month when kept at 37°C, whereas cefuroxime axetil underwent slow hydrolysis to cefuroxime.
AB - Two antibacterials, amoxicillin trihydrate and cefuroxime axetil spiked into wastewater were completely removed by sequential wastewater treatment plant's membranes, which included activated sludge, ultrafiltration (hollow fibre and spiral wound membranes with 100 and 20 kDa cut-offs), activated carbon column and reverse osmosis. Adsorption isotherms in synthetic water which employed activated carbon and micelle-clay complex (octadecyltrimethylammonium-montmorillonite) as adsorbents fitted the Langmuir equation. Qmax of 100 and 90.9 mg g-1, and K values of 0.158 and 0.229 L mg-1 were obtained for amoxicillin trihydrate using activated carbon and micelle-clay complex, respectively. Filtration of antibacterials in the ppm range, which yielded variable degrees of removal depending on the volumes passed and flow rates, was simulated and capacities for the ppb range were estimated. Stability study in pure water and wastewater revealed that amoxicillin was totally stable for one month when kept at 37°C, whereas cefuroxime axetil underwent slow hydrolysis to cefuroxime.
KW - activated carbon
KW - adsorption
KW - amoxicillin
KW - antibacterials
KW - cefuroxime axetil
KW - clay
KW - clay-micelle complex
KW - reverse osmosis
KW - ultrafiltration
KW - wastewater treatment
UR - http://www.scopus.com/inward/record.url?scp=84929835175&partnerID=8YFLogxK
U2 - 10.1080/09593330.2015.1019935
DO - 10.1080/09593330.2015.1019935
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C2 - 25686519
AN - SCOPUS:84929835175
SN - 0959-3330
VL - 36
SP - 2069
EP - 2078
JO - Environmental Technology (United Kingdom)
JF - Environmental Technology (United Kingdom)
IS - 16
ER -