Study of heavy metals biosorption on native and alkali-treated apricot shells and its application in wastewater treatment
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2018
Authors
Sostaric, Tatjana D.Petrovic, Marija S.
Pastor, Ferenc T.

Lončarević, Davor

Petrovic, Jelena T.
Milojkovic, V Jelena
Stojanovic, Mirjana D.
Article (Published version)

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Locally available apricot (Prunus armeniaca L.) shells classified as a waste product from fruit processing, were alkali activated in order to develop an efficient heavy metal ions sorbent for water purification. To examine the changes occurred after alkali treatment, raw (SH) and modified apricot shells (SHM) were thoroughly characterized in terms of their chemical composition and surface properties. Chemical analysis revealed that alkaline treatment causes the disintegration of hemicellulose (its content decreased from 19.2 to 3.5%), which was in accordance with FTIR results. SEM micrographs and the mercury intrusion porosimetry revealed a larger surface area and porosity of SHM. Bohem's acid-base titration method indicated that the most of the SHM surface carboxylic groups were in sodium salt form and together with the pH of points of zero charge showed increase of surface alkalinity after modification. Treatment with NaOH enhanced the adsorption capacity by 154, 61 and 90% for Cu2+,... Zn2+ and Pb2+, respectively. The amount of cations released from SHM was almost equal to the amount of adsorbed metal ions, suggesting ion exchange mechanism. The pseudo-second order kinetic indicated that the heavy metals cations were bound predominantly by complexation. In order to establish the effectiveness of the biosorbent in real wastewater sample, SHM was employed for cleaning-up of drain water emanating from atomic adsorption spectrophotometer. The SHM showed high removal efficiency towards multiple metal ions. The amounts of Fe, Pb, Cu and Cr ions were reduced by 97, 87, 81 and 80%, respectively, while Ni and Zn amounts were reduced for 33 and 14%. Used biosorbent SHM can be successfully regenerated with HCl (desorption > 95%) and after regeneration biosorbent can be reused or it can be safely disposed.
Keywords:
Apricot shells / Waste minimization / Characterization / Heavy metals removal / Wastewater treatmentSource:
Journal of Molecular Liquids, 2018, 259, 340-349Publisher:
- Elsevier
Funding / projects:
- Development of technologies and products based on mineral raw materials and waste biomass for protection of natural resources for safe food production (RS-31003)
- Modulation of antioxidative metabolism in plants for improvement of plant abiotic stress tolerance and identification of new biomarkers for application in remediation and monitoring of degraded biotopes (RS-43010)
Note:
- The peer-reviewed version: http://cer.ihtm.bg.ac.rs/handle/123456789/3338
DOI: 10.1016/j.molliq.2018.03.055
ISSN: 0167-7322
WoS: 000434004000036
Scopus: 2-s2.0-85044146237
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IHTMTY - JOUR AU - Sostaric, Tatjana D. AU - Petrovic, Marija S. AU - Pastor, Ferenc T. AU - Lončarević, Davor AU - Petrovic, Jelena T. AU - Milojkovic, V Jelena AU - Stojanovic, Mirjana D. PY - 2018 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/2295 AB - Locally available apricot (Prunus armeniaca L.) shells classified as a waste product from fruit processing, were alkali activated in order to develop an efficient heavy metal ions sorbent for water purification. To examine the changes occurred after alkali treatment, raw (SH) and modified apricot shells (SHM) were thoroughly characterized in terms of their chemical composition and surface properties. Chemical analysis revealed that alkaline treatment causes the disintegration of hemicellulose (its content decreased from 19.2 to 3.5%), which was in accordance with FTIR results. SEM micrographs and the mercury intrusion porosimetry revealed a larger surface area and porosity of SHM. Bohem's acid-base titration method indicated that the most of the SHM surface carboxylic groups were in sodium salt form and together with the pH of points of zero charge showed increase of surface alkalinity after modification. Treatment with NaOH enhanced the adsorption capacity by 154, 61 and 90% for Cu2+, Zn2+ and Pb2+, respectively. The amount of cations released from SHM was almost equal to the amount of adsorbed metal ions, suggesting ion exchange mechanism. The pseudo-second order kinetic indicated that the heavy metals cations were bound predominantly by complexation. In order to establish the effectiveness of the biosorbent in real wastewater sample, SHM was employed for cleaning-up of drain water emanating from atomic adsorption spectrophotometer. The SHM showed high removal efficiency towards multiple metal ions. The amounts of Fe, Pb, Cu and Cr ions were reduced by 97, 87, 81 and 80%, respectively, while Ni and Zn amounts were reduced for 33 and 14%. Used biosorbent SHM can be successfully regenerated with HCl (desorption > 95%) and after regeneration biosorbent can be reused or it can be safely disposed. PB - Elsevier T2 - Journal of Molecular Liquids T1 - Study of heavy metals biosorption on native and alkali-treated apricot shells and its application in wastewater treatment VL - 259 SP - 340 EP - 349 DO - 10.1016/j.molliq.2018.03.055 ER -
@article{ author = "Sostaric, Tatjana D. and Petrovic, Marija S. and Pastor, Ferenc T. and Lončarević, Davor and Petrovic, Jelena T. and Milojkovic, V Jelena and Stojanovic, Mirjana D.", year = "2018", abstract = "Locally available apricot (Prunus armeniaca L.) shells classified as a waste product from fruit processing, were alkali activated in order to develop an efficient heavy metal ions sorbent for water purification. To examine the changes occurred after alkali treatment, raw (SH) and modified apricot shells (SHM) were thoroughly characterized in terms of their chemical composition and surface properties. Chemical analysis revealed that alkaline treatment causes the disintegration of hemicellulose (its content decreased from 19.2 to 3.5%), which was in accordance with FTIR results. SEM micrographs and the mercury intrusion porosimetry revealed a larger surface area and porosity of SHM. Bohem's acid-base titration method indicated that the most of the SHM surface carboxylic groups were in sodium salt form and together with the pH of points of zero charge showed increase of surface alkalinity after modification. Treatment with NaOH enhanced the adsorption capacity by 154, 61 and 90% for Cu2+, Zn2+ and Pb2+, respectively. The amount of cations released from SHM was almost equal to the amount of adsorbed metal ions, suggesting ion exchange mechanism. The pseudo-second order kinetic indicated that the heavy metals cations were bound predominantly by complexation. In order to establish the effectiveness of the biosorbent in real wastewater sample, SHM was employed for cleaning-up of drain water emanating from atomic adsorption spectrophotometer. The SHM showed high removal efficiency towards multiple metal ions. The amounts of Fe, Pb, Cu and Cr ions were reduced by 97, 87, 81 and 80%, respectively, while Ni and Zn amounts were reduced for 33 and 14%. Used biosorbent SHM can be successfully regenerated with HCl (desorption > 95%) and after regeneration biosorbent can be reused or it can be safely disposed.", publisher = "Elsevier", journal = "Journal of Molecular Liquids", title = "Study of heavy metals biosorption on native and alkali-treated apricot shells and its application in wastewater treatment", volume = "259", pages = "340-349", doi = "10.1016/j.molliq.2018.03.055" }
Sostaric, T. D., Petrovic, M. S., Pastor, F. T., Lončarević, D., Petrovic, J. T., Milojkovic, V. J.,& Stojanovic, M. D.. (2018). Study of heavy metals biosorption on native and alkali-treated apricot shells and its application in wastewater treatment. in Journal of Molecular Liquids Elsevier., 259, 340-349. https://doi.org/10.1016/j.molliq.2018.03.055
Sostaric TD, Petrovic MS, Pastor FT, Lončarević D, Petrovic JT, Milojkovic VJ, Stojanovic MD. Study of heavy metals biosorption on native and alkali-treated apricot shells and its application in wastewater treatment. in Journal of Molecular Liquids. 2018;259:340-349. doi:10.1016/j.molliq.2018.03.055 .
Sostaric, Tatjana D., Petrovic, Marija S., Pastor, Ferenc T., Lončarević, Davor, Petrovic, Jelena T., Milojkovic, V Jelena, Stojanovic, Mirjana D., "Study of heavy metals biosorption on native and alkali-treated apricot shells and its application in wastewater treatment" in Journal of Molecular Liquids, 259 (2018):340-349, https://doi.org/10.1016/j.molliq.2018.03.055 . .