TY  - JOUR
AU  - Turk Sekulić, Maja
AU  - Pap, Sabolc
AU  - Stojanovic, Zoran
AU  - Boskovic, Nikola
AU  - Radonic, Jelena
AU  - Šolević Knudsen, Tatjana
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2463
AB  - This paper investigates the ability of the phosphoric acid functionalized Prunus armeniaca stones biochar (AsPhA) prepared by thermochemical activation to remove lead (Pb2+), cadmium (Cd2+), nickel (Ni2+), naproxen and chlorophenols from aqueous wastes. The engineered biochar was characterized using the Scanning Electron Microscopy, Energy-dispersive X-ray Spectroscopy, Fourier Transform Infrared Spectroscopy and Brunauer, Emmett and Teller technique. The batch studies were performed by varying the initial pH of the solution (2-9), adsorbent dosage (0.2-10 g L-1), contact time (5-60 min), temperature (22, 32 and 42 degrees C) and initial adsorbate concentration (5-500mg L-1). With the optimal process conditions, the adsorption efficiency was over 95% (100 mg L-1). The results were fitted with three kinetic and three equilibrium theoretical adsorption models. The adsorption process has good correlation with pseudo-second-order reaction kinetics. Adsorption mechanism was found to be controlled by pore, film and particle diffusion, throughout the entire adsorption period. The monolayer adsorption capacities were found to be 179.476, 105.844 and 78.798mg g(-1) for Pb2+, Cd2+ and Ni2+, respectively. Thermodynamic parameters such as Gibbs energy, enthalpy and entropy were also calculated. Additionally, preliminary results indicated a strong affinity of the biochar for selected organic micropollutants: naproxen and chlorophenols. Based on desorption study results, biochar was successfully regenerated in 3 cycles with diluted phosphoric acid produced as a waste stream during washing of the biochar after thermochemical activation. The experimental results were applied in a two-stage completely stirred tank reactor design. Cost estimation of AsPhA production substantiated its cost effectiveness and adsorption costs of selected pollutants were 5 times lower than with the commercial activated carbons. Based on the low-cost and high capacity, engineered biochar can be used as a highly efficient eco-friendly adsorbent for removal of heavy metal and organic micropollutants from wastewaters systems.
PB  - Elsevier
T2  - Science of the Total Environment
T1  - Efficient removal of priority, hazardous priority and emerging pollutants with Prunus armeniaca functionalized biochar from aqueous wastes: Experimental optimization and modeling
VL  - 613
SP  - 736
EP  - 750
DO  - 10.1016/j.scitotenv.2017.09.082
ER  - 

@article{
author = "Turk Sekulić, Maja and Pap, Sabolc and Stojanovic, Zoran and Boskovic, Nikola and Radonic, Jelena and Šolević Knudsen, Tatjana",
year = "2018",
abstract = "This paper investigates the ability of the phosphoric acid functionalized Prunus armeniaca stones biochar (AsPhA) prepared by thermochemical activation to remove lead (Pb2+), cadmium (Cd2+), nickel (Ni2+), naproxen and chlorophenols from aqueous wastes. The engineered biochar was characterized using the Scanning Electron Microscopy, Energy-dispersive X-ray Spectroscopy, Fourier Transform Infrared Spectroscopy and Brunauer, Emmett and Teller technique. The batch studies were performed by varying the initial pH of the solution (2-9), adsorbent dosage (0.2-10 g L-1), contact time (5-60 min), temperature (22, 32 and 42 degrees C) and initial adsorbate concentration (5-500mg L-1). With the optimal process conditions, the adsorption efficiency was over 95% (100 mg L-1). The results were fitted with three kinetic and three equilibrium theoretical adsorption models. The adsorption process has good correlation with pseudo-second-order reaction kinetics. Adsorption mechanism was found to be controlled by pore, film and particle diffusion, throughout the entire adsorption period. The monolayer adsorption capacities were found to be 179.476, 105.844 and 78.798mg g(-1) for Pb2+, Cd2+ and Ni2+, respectively. Thermodynamic parameters such as Gibbs energy, enthalpy and entropy were also calculated. Additionally, preliminary results indicated a strong affinity of the biochar for selected organic micropollutants: naproxen and chlorophenols. Based on desorption study results, biochar was successfully regenerated in 3 cycles with diluted phosphoric acid produced as a waste stream during washing of the biochar after thermochemical activation. The experimental results were applied in a two-stage completely stirred tank reactor design. Cost estimation of AsPhA production substantiated its cost effectiveness and adsorption costs of selected pollutants were 5 times lower than with the commercial activated carbons. Based on the low-cost and high capacity, engineered biochar can be used as a highly efficient eco-friendly adsorbent for removal of heavy metal and organic micropollutants from wastewaters systems.",
publisher = "Elsevier",
journal = "Science of the Total Environment",
title = "Efficient removal of priority, hazardous priority and emerging pollutants with Prunus armeniaca functionalized biochar from aqueous wastes: Experimental optimization and modeling",
volume = "613",
pages = "736-750",
doi = "10.1016/j.scitotenv.2017.09.082"
}

Turk Sekulić, M., Pap, S., Stojanovic, Z., Boskovic, N., Radonic, J.,& Šolević Knudsen, T.. (2018). Efficient removal of priority, hazardous priority and emerging pollutants with Prunus armeniaca functionalized biochar from aqueous wastes: Experimental optimization and modeling. in Science of the Total Environment
Elsevier., 613, 736-750.
https://doi.org/10.1016/j.scitotenv.2017.09.082

Turk Sekulić M, Pap S, Stojanovic Z, Boskovic N, Radonic J, Šolević Knudsen T. Efficient removal of priority, hazardous priority and emerging pollutants with Prunus armeniaca functionalized biochar from aqueous wastes: Experimental optimization and modeling. in Science of the Total Environment. 2018;613:736-750.
doi:10.1016/j.scitotenv.2017.09.082 .

Turk Sekulić, Maja, Pap, Sabolc, Stojanovic, Zoran, Boskovic, Nikola, Radonic, Jelena, Šolević Knudsen, Tatjana, "Efficient removal of priority, hazardous priority and emerging pollutants with Prunus armeniaca functionalized biochar from aqueous wastes: Experimental optimization and modeling" in Science of the Total Environment, 613 (2018):736-750,
https://doi.org/10.1016/j.scitotenv.2017.09.082 . .

TY  - JOUR
AU  - Pap, Sabolc
AU  - Šolević Knudsen, Tatjana
AU  - Radonic, Jelena
AU  - Maletić, Snežana
AU  - Igic, Sasa M.
AU  - Turk Sekulić, Maja
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2133
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2942
AB  - Plum stones, as a part of industrial and municipal organic waste, were used as a precursor for preparation of a low-cost activated carbon. Engineered, thermochemically-modified adsorbent was used to remove lead (Pb2+), cadmium (Cd2+), nickel (Ni2+) and chlorophenols from an aqueous solution. The characterization of the medium was performed using standard instrumental analysis. Additionally, the assessment included the influence of pH, adsorbent dosage, temperature, contact time and initial metal concentration on the separation efficiency in the batch-operational mode. With optimal working conditions, the process efficiency of over 95% was accomplished. The equilibrium and kinetic studies of adsorption were done. The pseudo-second order model described the adsorption kinetics best. The maximum adsorption capacity of the engineered adsorbent for Pb2+, Cd2+ and Ni2+ ions was calculated from the Langmuir isotherms and found to be 172.43 mg g(-1), 112.74 mg g(-1) and 63.74 mg g(-1), respectively. Preliminary results indicate a strong affinity of the separation medium for chlorophenols. Thermodynamic parameters such as Gibbs energy, enthalpy and entropy were calculated. Regeneration of the saturated adsorbent was conducted, with diluted phosphoric acid produced as a waste stream, during the washing of the adsorbent after activation. Based on the desorption study results, the activated carbon was successfully regenerated in 3 cycles. Mutual influence of ions was analyzed in multicomponent systems. The real system production and operational costs analysis confirmed a possibility for a successful implementation of the highly efficient, eco-friendly engineered adsorbent in the field of cost-effective wastewater treatment.
PB  - Elsevier Sci Ltd, Oxford
T2  - Journal of Cleaner Production
T1  - Utilization of fruit processing industry waste as green activated carbon for the treatment of heavy metals and chlorophenols contaminated water
VL  - 162
SP  - 958
EP  - 972
DO  - 10.1016/j.jclepro.2017.06.083
ER  - 

@article{
author = "Pap, Sabolc and Šolević Knudsen, Tatjana and Radonic, Jelena and Maletić, Snežana and Igic, Sasa M. and Turk Sekulić, Maja",
year = "2017",
abstract = "Plum stones, as a part of industrial and municipal organic waste, were used as a precursor for preparation of a low-cost activated carbon. Engineered, thermochemically-modified adsorbent was used to remove lead (Pb2+), cadmium (Cd2+), nickel (Ni2+) and chlorophenols from an aqueous solution. The characterization of the medium was performed using standard instrumental analysis. Additionally, the assessment included the influence of pH, adsorbent dosage, temperature, contact time and initial metal concentration on the separation efficiency in the batch-operational mode. With optimal working conditions, the process efficiency of over 95% was accomplished. The equilibrium and kinetic studies of adsorption were done. The pseudo-second order model described the adsorption kinetics best. The maximum adsorption capacity of the engineered adsorbent for Pb2+, Cd2+ and Ni2+ ions was calculated from the Langmuir isotherms and found to be 172.43 mg g(-1), 112.74 mg g(-1) and 63.74 mg g(-1), respectively. Preliminary results indicate a strong affinity of the separation medium for chlorophenols. Thermodynamic parameters such as Gibbs energy, enthalpy and entropy were calculated. Regeneration of the saturated adsorbent was conducted, with diluted phosphoric acid produced as a waste stream, during the washing of the adsorbent after activation. Based on the desorption study results, the activated carbon was successfully regenerated in 3 cycles. Mutual influence of ions was analyzed in multicomponent systems. The real system production and operational costs analysis confirmed a possibility for a successful implementation of the highly efficient, eco-friendly engineered adsorbent in the field of cost-effective wastewater treatment.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Journal of Cleaner Production",
title = "Utilization of fruit processing industry waste as green activated carbon for the treatment of heavy metals and chlorophenols contaminated water",
volume = "162",
pages = "958-972",
doi = "10.1016/j.jclepro.2017.06.083"
}

Pap, S., Šolević Knudsen, T., Radonic, J., Maletić, S., Igic, S. M.,& Turk Sekulić, M.. (2017). Utilization of fruit processing industry waste as green activated carbon for the treatment of heavy metals and chlorophenols contaminated water. in Journal of Cleaner Production
Elsevier Sci Ltd, Oxford., 162, 958-972.
https://doi.org/10.1016/j.jclepro.2017.06.083

Pap S, Šolević Knudsen T, Radonic J, Maletić S, Igic SM, Turk Sekulić M. Utilization of fruit processing industry waste as green activated carbon for the treatment of heavy metals and chlorophenols contaminated water. in Journal of Cleaner Production. 2017;162:958-972.
doi:10.1016/j.jclepro.2017.06.083 .

Pap, Sabolc, Šolević Knudsen, Tatjana, Radonic, Jelena, Maletić, Snežana, Igic, Sasa M., Turk Sekulić, Maja, "Utilization of fruit processing industry waste as green activated carbon for the treatment of heavy metals and chlorophenols contaminated water" in Journal of Cleaner Production, 162 (2017):958-972,
https://doi.org/10.1016/j.jclepro.2017.06.083 . .

TY  - JOUR
AU  - Pap, Sabolc
AU  - Šolević Knudsen, Tatjana
AU  - Radonic, Jelena
AU  - Maletić, Snežana
AU  - Igic, Sasa M.
AU  - Turk Sekulić, Maja
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2133
AB  - Plum stones, as a part of industrial and municipal organic waste, were used as a precursor for preparation of a low-cost activated carbon. Engineered, thermochemically-modified adsorbent was used to remove lead (Pb2+), cadmium (Cd2+), nickel (Ni2+) and chlorophenols from an aqueous solution. The characterization of the medium was performed using standard instrumental analysis. Additionally, the assessment included the influence of pH, adsorbent dosage, temperature, contact time and initial metal concentration on the separation efficiency in the batch-operational mode. With optimal working conditions, the process efficiency of over 95% was accomplished. The equilibrium and kinetic studies of adsorption were done. The pseudo-second order model described the adsorption kinetics best. The maximum adsorption capacity of the engineered adsorbent for Pb2+, Cd2+ and Ni2+ ions was calculated from the Langmuir isotherms and found to be 172.43 mg g(-1), 112.74 mg g(-1) and 63.74 mg g(-1), respectively. Preliminary results indicate a strong affinity of the separation medium for chlorophenols. Thermodynamic parameters such as Gibbs energy, enthalpy and entropy were calculated. Regeneration of the saturated adsorbent was conducted, with diluted phosphoric acid produced as a waste stream, during the washing of the adsorbent after activation. Based on the desorption study results, the activated carbon was successfully regenerated in 3 cycles. Mutual influence of ions was analyzed in multicomponent systems. The real system production and operational costs analysis confirmed a possibility for a successful implementation of the highly efficient, eco-friendly engineered adsorbent in the field of cost-effective wastewater treatment.
PB  - Elsevier Sci Ltd, Oxford
T2  - Journal of Cleaner Production
T1  - Utilization of fruit processing industry waste as green activated carbon for the treatment of heavy metals and chlorophenols contaminated water
VL  - 162
SP  - 958
EP  - 972
DO  - 10.1016/j.jclepro.2017.06.083
ER  - 

@article{
author = "Pap, Sabolc and Šolević Knudsen, Tatjana and Radonic, Jelena and Maletić, Snežana and Igic, Sasa M. and Turk Sekulić, Maja",
year = "2017",
abstract = "Plum stones, as a part of industrial and municipal organic waste, were used as a precursor for preparation of a low-cost activated carbon. Engineered, thermochemically-modified adsorbent was used to remove lead (Pb2+), cadmium (Cd2+), nickel (Ni2+) and chlorophenols from an aqueous solution. The characterization of the medium was performed using standard instrumental analysis. Additionally, the assessment included the influence of pH, adsorbent dosage, temperature, contact time and initial metal concentration on the separation efficiency in the batch-operational mode. With optimal working conditions, the process efficiency of over 95% was accomplished. The equilibrium and kinetic studies of adsorption were done. The pseudo-second order model described the adsorption kinetics best. The maximum adsorption capacity of the engineered adsorbent for Pb2+, Cd2+ and Ni2+ ions was calculated from the Langmuir isotherms and found to be 172.43 mg g(-1), 112.74 mg g(-1) and 63.74 mg g(-1), respectively. Preliminary results indicate a strong affinity of the separation medium for chlorophenols. Thermodynamic parameters such as Gibbs energy, enthalpy and entropy were calculated. Regeneration of the saturated adsorbent was conducted, with diluted phosphoric acid produced as a waste stream, during the washing of the adsorbent after activation. Based on the desorption study results, the activated carbon was successfully regenerated in 3 cycles. Mutual influence of ions was analyzed in multicomponent systems. The real system production and operational costs analysis confirmed a possibility for a successful implementation of the highly efficient, eco-friendly engineered adsorbent in the field of cost-effective wastewater treatment.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Journal of Cleaner Production",
title = "Utilization of fruit processing industry waste as green activated carbon for the treatment of heavy metals and chlorophenols contaminated water",
volume = "162",
pages = "958-972",
doi = "10.1016/j.jclepro.2017.06.083"
}

Pap, S., Šolević Knudsen, T., Radonic, J., Maletić, S., Igic, S. M.,& Turk Sekulić, M.. (2017). Utilization of fruit processing industry waste as green activated carbon for the treatment of heavy metals and chlorophenols contaminated water. in Journal of Cleaner Production
Elsevier Sci Ltd, Oxford., 162, 958-972.
https://doi.org/10.1016/j.jclepro.2017.06.083

Pap S, Šolević Knudsen T, Radonic J, Maletić S, Igic SM, Turk Sekulić M. Utilization of fruit processing industry waste as green activated carbon for the treatment of heavy metals and chlorophenols contaminated water. in Journal of Cleaner Production. 2017;162:958-972.
doi:10.1016/j.jclepro.2017.06.083 .

Pap, Sabolc, Šolević Knudsen, Tatjana, Radonic, Jelena, Maletić, Snežana, Igic, Sasa M., Turk Sekulić, Maja, "Utilization of fruit processing industry waste as green activated carbon for the treatment of heavy metals and chlorophenols contaminated water" in Journal of Cleaner Production, 162 (2017):958-972,
https://doi.org/10.1016/j.jclepro.2017.06.083 . .