scholarly journals ADSORPTION OF NON-STEROIDAL ANTI-INFLAMMATORY PHARMACEUTICAL RESIDUES USING ACTIVATED CARBON FROM WASTEWATER

2021 ◽  
Author(s):  
Florinela Pirvu ◽  
◽  
Cristina Ileana Covaliu ◽  
Iuliana Paun ◽  
Vasile Iancu ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Pharmaceutical Residues ◽  
Anti Inflammatory

Sorption of paracetamol onto biomaterials

2016 ◽  
Vol 74 (1) ◽  
pp. 287-294
Author(s):  
Maroua Ferchichi ◽  
Hatem Dhaouadi
Keyword(s):  
Public Health ◽  
Activated Carbon ◽  
Posidonia Oceanica ◽  
The Other ◽  
Infrared Analysis ◽  
High Adsorption ◽  
Solid Supports ◽  
Pharmaceutical Residues ◽  
Before And After ◽  
High Adsorption Capacity

Pharmaceutical residues released into the environment are posing more and more public health problems. It is worthwhile to study the retention of pharmaceuticals residues by adsorption on solid supports. Batch sorption experiments are intended to identify the adsorption isotherms of the pharmaceutically active ingredient on the biomaterials. The results obtained in this study have shown that the retention possibilities of these compounds by bio-adsorbents (clay and sand) are not significant. The negligible sorption for these media is explained by the low hydrophobicity of paracetamol (Log Kow = 0.46). The retention of paracetamol on the dehydrated sewage sludge and on Posidonia oceanica showed a relatively significant adsorption with a maximal quantity of 0.956 mg g−1 and 1.638 mg g−1 for the dehydrate sludge and P. oceanica, respectively. On the other hand, the study of paracetamol retention on the powdered activated carbon showed a high adsorption capacity of about 515.27 mg g−1. Isotherm data show a good fit with Langmuir's model. An infrared analysis is carried out. It shows identical bands before and after adsorption, with some modifications.

Activated carbon for the removal of pharmaceutical residues from treated wastewater

2014 ◽  
Vol 69 (11) ◽  
pp. 2372-2380 ◽  
Author(s):  
Mats Ek ◽  
Christian Baresel ◽  
Jörgen Magnér ◽  
Rune Bergström ◽  
Mila Harding
Keyword(s):  
Activated Carbon ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Treated Wastewater ◽  
Resource Utilisation ◽  
Aquatic Life ◽  
Efficient System ◽  
Chemical Structures ◽  
Pharmaceutical Residues

Pharmaceutical residues, which pass naturally through the human body into sewage, are in many cases virtually unaffected by conventional wastewater treatment. Accumulated in the environment, however, they can significantly impact aquatic life. The present study indicates that many pharmaceutical residues found in wastewater can be removed with activated carbon in a cost-efficient system that delivers higher resource utilisation and security than other carbon systems. The experiment revealed a substantial separation of the analysed compounds, notwithstanding their relatively high solubility in water and dissimilar chemical structures. This implies that beds of activated carbon may be a competitive alternative to treatment with ozone. The effluent water used for the tests, performed over 20 months, originated from Stockholm's largest sewage treatment plant. Passing through a number of different filters with activated carbon removed 90–98% of the pharmaceutical residues from the water. This paper describes pilot-scale tests performed by IVL and the implications for an actual treatment plant that has to treat up to several thousand litres of wastewater per second. In addition, the advantages, disadvantages and costs of the method are discussed. This includes, for example, the clogging of carbon filters and the associated hydraulic capacity limits of the activated carbon.

The role of activated carbon and disinfection on the removal of endocrine disrupting chemicals and non-steroidal anti-inflammatory drugs from wastewater

2013 ◽  
Vol 35 (6) ◽  
pp. 698-708 ◽  
Author(s):  
Constantinos Noutsopoulos ◽  
Daniel Mamais ◽  
Thanasis Mpouras ◽  
Despina Kokkinidou ◽  
Vasilios Samaras ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Endocrine Disrupting Chemicals ◽  
Endocrine Disrupting ◽  
Inflammatory Drugs ◽  
Anti Inflammatory

scholarly journals Ordered Mesoporous Carbons for Adsorption of Paracetamol and Non-Steroidal Anti-Inflammatory Drugs: Ibuprofen and Naproxen from Aqueous Solutions

Water ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 1099 ◽  
Author(s):  
Katarzyna Jedynak ◽  
Beata Szczepanik ◽  
Nina Rędzia ◽  
Piotr Słomkiewicz ◽  
Anna Kolbus ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Contact Time ◽  
Theoretical Calculations ◽  
Isotherm Models ◽  
Mesoporous Carbons ◽  
Ordered Mesoporous Carbons ◽  
Chemical Structures ◽  
Ordered Mesoporous ◽  
Inflammatory Drugs ◽  
Anti Inflammatory

The adsorption of paracetamol and non-steroidal anti-inflammatory drugs (ibuprofen and naproxen) on ordered mesoporous carbons (OMC) and, for comparison, on commercial activated carbon, were investigated in this work. OMC adsorbents were obtained by the soft-templating method and were characterized by low-temperature nitrogen adsorption and scanning electron microscopy (SEM). The effects of contact time and initial concentration of organic adsorbates on the adsorption were studied. The contact time to reach equilibrium for maximum adsorption was 360 min for all the studied adsorbates. The adsorption mechanism was found to fit pseudo-second-order and intra particle-diffusion models. Freundlich, Langmuir and Langmuir-Freundlich isotherm models were used to analyze equilibrium adsorption data. Based on the obtained experimental data, the adsorption isotherm in the applied concentration range for all the studied adsorbates was well represented by the Freundlich-Langmuir model. The adsorption ability of ordered mesoporous carbon materials was much higher for paracetamol and naproxen in comparison to commercial activated carbon. The removal efficiency for ibuprofen was significantly lower than for other studied pharmaceuticals and comparable for all adsorbents. Theoretical calculations made it possible to obtain optimized chemical structures of (S)-naproxen, ibuprofen, and paracetamol molecules. Knowledge of charge distributions of these adsorbate molecules can be helpful to explain why paracetamol and naproxen can react more strongly with the surface of adsorbents with a large numbers of acidic groups compared to ibuprofen facilitating more efficient adsorption of these pharmaceuticals on ordered mesoporous carbons.

scholarly journals High-performance Removal of Anti-inflammatory Using Activated Carbon from Water Treatment Plant Sludge: Fixed-bed and Batch Studies

2021 ◽  
Author(s):  
Alaor Valério Filho ◽  
Luana Vaz Tholozan ◽  
Aline Lemos Arim ◽  
André Ricardo Felkl de Almeida ◽  
GABRIELA SILVEIRA DA ROSA
Keyword(s):  
Activated Carbon ◽  
Water Treatment ◽  
Adsorption Capacity ◽  
High Performance ◽  
Fixed Bed ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Maximum Adsorption Capacity ◽  
Continuous Adsorption ◽  
Anti Inflammatory

Abstract Activated carbon from water treatment sludge (WASC) was employed as adsorbent material to remove the anti-inflammatory Nimesulide (NM) from aqueous solutions. NM adsorption was performed in batch and fixed-bed systems, evaluating pH, adsorbent dosage, adsorption kinetics, equilibrium isotherm, continuous adsorption, and simulated effluents. The kinetic data were best fitted to the Elovich model and Intraparticle diffusion reaching the equilibrium at 120 min. Langmuir model presented a better description of the equilibrium data with the maximum adsorption capacity (qmax) of 274.99 mg g− 1 from NM adsorption by WASC. The adsorbent was tested in two simulated hospital effluents and proved to be an excellent adsorbent for removing NM from an aqueous solution with the presence of salts, sugars, and other inorganics. Finally, WASC was applied in fixed-bed NM adsorption obtaining the adsorption capacity of 217.28 mg g− 1.

Electro-Fenton Regeneration of Activated Carbon Fibers for the Removal of Pharmaceutical Residues

2020 ◽  
Vol MA2020-01 (21) ◽  
pp. 1266-1266
Author(s):  
Clement Trellu ◽  
Nadia Gadi ◽  
Nihal Oturan ◽  
Chloe Fourdrin ◽  
Yoan Pechaud ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Carbon Fibers ◽  
Activated Carbon Fibers ◽  
Pharmaceutical Residues

scholarly journals Nonsteroidal Anti-Inflammatory Drug Solid-State Microencapsulation on Green Activated Carbon - Mass Transfer and Host-Guest Interactions

2019 ◽  
Vol 33 (2) ◽  
pp. 249-269 ◽  
Author(s):  
Zvezdelina Lyubenova Yaneva
Keyword(s):  
Mass Transfer ◽  
Activated Carbon ◽  
Solid Phase ◽  
Drug Carrier ◽  
In Vitro Release ◽  
Inflammatory Drug ◽  
Mass Transfer Mechanism ◽  
Carbon Mass ◽  
Anti Inflammatory

The present study investigated the drug-carrier capacity of green activated carbon derived from fruit stones by steam-gas activation (ACSTA) towards the nonsteroidal anti-inflammatory drug (NSAID) ibuprofen (IBU), and assessed the host-guest interactions and mass transfer mechanism/s of the drug microencapsulation and in vitro release processes. The mass transfer studies outlined that the process of IBU encapsulation on ACSTA microparticles was predominantly controlled by intraparticle solid phase diffusion.

scholarly journals Activated carbon embedded alginate beads for removing nonsteroidal anti-inflammatory drug naproxen from wastewater: equilibrium, kinetics, thermodynamics, desorption, and reusability

2020 ◽  
Vol 81 (7) ◽  
pp. 1432-1444 ◽  
Author(s):  
Nazli Ozcan ◽  
Didem Saloglu
Keyword(s):  
Activated Carbon ◽  
Alginate Beads ◽  
Isotherm Models ◽  
Inflammatory Drug ◽  
Bet Analysis ◽  
Initial Ph ◽  
Equilibrium Data ◽  
Pseudo Second Order ◽  
Ft Ir ◽  
Anti Inflammatory

Abstract In the present study, activated carbon/alginate (AC/ALG) beads were successfully synthesized with different AC:ALG ratios of 1.0–3.0 (w/v) and used for the adsorption of the nonsteroidal anti-inflammatory drug naproxen from wastewater. The beads were characterized by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and Brunauer-Emmett-Teller (BET) analysis, and adsorbent dosage, initial pH, initial naproxen concentration, and contact time in removal efficiency were investigated. Maximum naproxen removal percentage was achieved using 350 mg of AC/ALG beads with a ratio of 3.0% (w/v) within six hours and naproxen removal performance was determined to be 98.0%. Freundlich, Temkin, and Dubinin–Radushkevich (D-R) isotherm models were fitted to the equilibrium data better than the Langmuir model. According to kinetics results, the equilibrium time for the AC/ALG beads was reached in four hours and the kinetic model was determined by the pseudo-second-order equation. The thermodynamic parameters were calculated and enthalpy of naproxen adsorption was found to be positive for all AC/ALG beads. After the adsorption process the beads can easily be regenerated by ethanol and reused within seven cycles.

Adsorption of Diclofenac, Sulfamethoxazole and Levofloxacin with Powdered Activated Carbon

2017 ◽  
Author(s):  
Erki Lember ◽  
Karin Pachel ◽  
Enn Loigu
Keyword(s):  
Activated Carbon ◽  
Residence Time ◽  
Biological Treatment ◽  
Treatment Process ◽  
Wastewater Treatment Plants ◽  
Adsorption Property ◽  
Powdered Activated Carbon ◽  
Pharmaceutical Residues ◽  
Adsorption Processes ◽  
Global Concern

The presence of pharmaceutical residues in the receiving waterbodies of wastewater treatment plants (WWTP) and in the environment has become a global concern. We can now say for certain that, having metabolised in our bodies, partially modified or unmodified pharmaceuticals will reach WWTP. However, WWTP are not designed for the removal of such com-pounds. Only a small fraction of pharmaceuticals decompose during biological treatment or are adsorbed in sediment. There-fore, it is essential to find a treatment process that is capable of removing pharmaceutical residues. The aim of the present study was to research the removal of three pharmaceuticals found in the environment, namely diclofenac (DCF), sulfamethoxazole (SMX) and levofloxacin (LFX), through the use of powdered activated carbon (PAC). To this end, adsorption tests were con-ducted where the adsorption capacity was estimated according to the adsorbent dose and the residence time of the process. LFX had the highest adsorption rate: the removal effectiveness was 77% in a residence time of 5 minutes and in 60 minutes a stable indicator was achieved whereby 94% of LFX had become adsorbed. The worst adsorption property was observed for SMX, as 68% of SMX was adsorbed in a residence time of 60 minutes. According to the conducted tests, the Freundlich adsorption isotherms and constants characterising the adsorption were found where the DCF K was 23.8, the SMX K was 34.3 and the LFX K was 106.1. This test demonstrated that the pharmaceuticals selected for the experiment could easily be subjected to adsorption processes and could be removed by means of PAC.

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