NDLI: Removal of Pharmaceuticals and Endocrine Disruptor Compounds from Natural Waters by Clarification Associated with Powdered Activated Carbon

Content Provider	Springer Nature Link
Author	Lima, Diego R. S. Baêta, Bru E. L. Aqui, Sérgio F. Libânio, Marcelo Afonso, Robson J. C. F.
Copyright Year	2014
Abstract	This work has evaluated the efficiency of two coagulants, aluminum sulfate (AS) and polyaluminum chloride (PACl), combined with the adsorption process using powdered activated carbon (PAC) on the removal of diclofenac (DCF), sulfamethoxazole (SMX), ethinylestradiol (EE2), estradiol (E2), estrone (E1), estriol (E3), and bisphenol-A (BPA) from low- and high-turbidity waters. The results have shown that the concomitant application of PAC and either coagulant has worsened the removal efficiency for all pharmaceuticals and endocrine disruptors tested, which might have occurred due to the covering of adsorption sites by aluminum hydroxide particles. In this configuration (coagulation in the presence of PAC, 10 mg L$^{−1}$), the best removal efficiency (∼40 %) was obtained for E1 and EE2 when AS was used as coagulant in contact times that varied from 13.5 to 23.5 min. When the coagulant was the PACl, contact times were lower (8.5 to 13.5 min) and the highest removal efficiency was observed for EE2 (∼52 %). When PAC was added as a pre-treatment (before addition of coagulant), the removal efficiency was greatly increased for all microcontaminants and the application of 2.5 mg L$^{−1}$ of PAC with 120 min of contact led to removal efficiencies varying from 30 to 99.9 %.
Starting Page	1
Ending Page	12
Page Count	12
File Format	PDF
ISSN	00496979
Journal	Water, Air, and Soil Pollution
Volume Number	225
Issue Number	11
e-ISSN	15732932
Language	English
Publisher	Springer International Publishing
Publisher Date	2014-10-05
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Pharmaceuticals Endocrine disruptors Water treatment Adsorption Powdered activated carbon Environment Water Quality/Water Pollution Atmospheric Protection/Air Quality Control/Air Pollution Soil Science & Conservation Hydrogeology Climate Change/Climate Change Impacts
Content Type	Text
Resource Type	Article
Subject	Ecological Modeling Environmental Chemistry Pollution Environmental Engineering Water Science and Technology

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