| |
 |
UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-23 17:38 |
 |
|
|
|
Conference: Bucharest University Faculty of Physics 2023 Meeting
Section: Physics and Technology of Renewable and Alternative Energy Sources
Title:
Ecological technologies for the removal of pharmaceutical pollutants from contaminated water
Authors:
Cristina RADUCANU(1), Bogdan Ciprian MITREA(2), Tom Matei IACOB(2), Cornelia NICHITA(2,3)
*
Affiliation:
1)University of Bucharest, Faculty of Physics, MG-38, 405 Atomistilor Street, 077125, Magurele, Romania
2) University of Bucharest, Faculty of Physics, CTT 3Nano-SAE Research Center, MG-38, 405 Atomistilor Street, 077125, Magurele, Romania
3) National Institute for Chemical – Pharmaceutical Research and Development, 112 Vitan Avenue, 031299, Bucharest, Romania
E-mail
cornelia.nichita@unibuc.ro
Keywords:
ecological technologies, pharmaceutical pollutants, water decontamination
Abstract:
Pharmaceutical pollutants represent a class of emergent contaminants that require the implementation of ecological decontamination technologies to ensure the treatment of wastewater and the elimination of pharmaceuticals before the discharge of water into the environment. Considering the high demand of the market in the field of medicines and implicitly their increasing production, pharmaceutical pollution has become a global and worldwide problem. The conventional removal of pharmaceutical pollutants methods has many limitations with low efficiency, a fact that led to the development of new ecological systems. In this sense, the present work aims to implement ecological technologies for water decontamination, based on natural filteters such as montmorillonite clay, micronized activated zeolite, activated carbon and combinations thereof. The removal effect from water of of the pharmaceutical compound N-acetylcysteine (NAC) and the absorption capacity (CA%) of filter materials was evaluated by UV-VIS spectroscopy (Jasco, Japan, V-570 spectrophotometer). Spectra of the samples before and after filtering, were acquired in the range of 200-800 nm and their monitoring highlighted the decreasing of the absorbance value at the wavelengths corresponding to the pharmaceutical compound N- acetylcysteine (NAC). By employing eco-technologies based on natural filter materials, it was found that activated carbon is the most effective filter material (CA = 40.86%), followed by montmorillonite clay (CA = 36.90%) and micronized activated zeolite (25.04%). In addition, the morphological characteristics of the filter materials were investigated with a Digital Mobile Microscope (1X-544X, TC-006, Digital Mobile Microscope, China) and highlighted their specific micro structures.
Acknowledgement:
The support from the CTT 3 Nano-SAE Research Centre and the support from the Materials and Devices are thankfully acknowledged.
|
|
|
|