Remediation of Pb (II), Cd (II), and Zn (II) from aqueous solutions using porous (styrene–divinylbenzene)/Cu–Ni bimetallic nanocomposite microspheres: continuous fixed-bed column study
Bimetallic nanoparticles (BNPs) have been used as a new line of defence against heavy metal contamination among several types of nanoparticles (NPs) due to their enhanced, synergistic activity. In this study, we investigated the adsorption behaviour of porous (styrene–divinylbenzene)/CuNi bimetallic...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IWA Publishing
2023-05-01
|
| Series: | Water Science and Technology |
| Subjects: | |
| Online Access: | http://wst.iwaponline.com/content/87/9/2277 |
| _version_ | 1827931049658679296 |
|---|---|
| author | Hridya Thrikkykkal Rosmin Antu Harikumar P. S. |
| author_facet | Hridya Thrikkykkal Rosmin Antu Harikumar P. S. |
| author_sort | Hridya Thrikkykkal |
| collection | DOAJ |
| description | Bimetallic nanoparticles (BNPs) have been used as a new line of defence against heavy metal contamination among several types of nanoparticles (NPs) due to their enhanced, synergistic activity. In this study, we investigated the adsorption behaviour of porous (styrene–divinylbenzene)/CuNi bimetallic nanocomposite (P(St-DVB)/CuNi BNC) in a continuous flow fixed-bed column and its ability to remove Pb (II), Cd (II), and Zn (II) ions from aqueous solutions. We examined how the initial metal concentration, flow rate, and bed height affected the adsorption characteristics. Experimental results confirmed that the adsorption capacity increased with increase in influent metal concentration and bed height and decreased with increase in flow rate. The breakthrough and the column kinetic parameters were successfully predicted with three mathematical models: Thomas, Yoon–Nelson, and Adams–Bohart models. Both Thomas and Yoon–Nelson models showed good agreement with the experimental results for all the operating conditions. Successful desorption of heavy metals from the P(St-DVB)/CuNi BNC was performed using 0.5 M NaOH solution, and it showed good reusability of the adsorbent during four adsorption–desorption cycles. The results show that P(St-DVB)/CuNi BNC are effective and low-cost adsorbents, and they can be used in real-time large-scale industrial water treatment processes for the removal of heavy metals.
HIGHLIGHTS
Fixed-bed column was used for the removal of Pb (II), Cd (II), and Zn (II) using poly(styrene–divinylbenzene)/CuNi nanocomposite (P(St-DVB)/CuNi BNC) microspheres, which was found to be efficient and low-cost adsorbent.;
87, 85, and 92% removal efficiencies were achieved for lead, cadmium, and zinc, respectively.;
Conducted successful desorption of heavy metals from the P(St-DVB)/CuNi BNC.; |
| first_indexed | 2024-03-13T06:46:01Z |
| format | Article |
| id | doaj.art-1c5b1831a1c94117921ffebbad1346b9 |
| institution | Directory Open Access Journal |
| issn | 0273-1223 1996-9732 |
| language | English |
| last_indexed | 2024-03-13T06:46:01Z |
| publishDate | 2023-05-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Water Science and Technology |
| spelling | doaj.art-1c5b1831a1c94117921ffebbad1346b92023-06-08T05:53:48ZengIWA PublishingWater Science and Technology0273-12231996-97322023-05-018792277229110.2166/wst.2023.101101Remediation of Pb (II), Cd (II), and Zn (II) from aqueous solutions using porous (styrene–divinylbenzene)/Cu–Ni bimetallic nanocomposite microspheres: continuous fixed-bed column studyHridya Thrikkykkal0Rosmin Antu1Harikumar P. S.2 Ecology and Environment Research Group, Centre for Water Resources Development and Management, Kunnamangalam, Kozhikode, Kerala 673 571, India Ecology and Environment Research Group, Centre for Water Resources Development and Management, Kunnamangalam, Kozhikode, Kerala 673 571, India Ecology and Environment Research Group, Centre for Water Resources Development and Management, Kunnamangalam, Kozhikode, Kerala 673 571, India Bimetallic nanoparticles (BNPs) have been used as a new line of defence against heavy metal contamination among several types of nanoparticles (NPs) due to their enhanced, synergistic activity. In this study, we investigated the adsorption behaviour of porous (styrene–divinylbenzene)/CuNi bimetallic nanocomposite (P(St-DVB)/CuNi BNC) in a continuous flow fixed-bed column and its ability to remove Pb (II), Cd (II), and Zn (II) ions from aqueous solutions. We examined how the initial metal concentration, flow rate, and bed height affected the adsorption characteristics. Experimental results confirmed that the adsorption capacity increased with increase in influent metal concentration and bed height and decreased with increase in flow rate. The breakthrough and the column kinetic parameters were successfully predicted with three mathematical models: Thomas, Yoon–Nelson, and Adams–Bohart models. Both Thomas and Yoon–Nelson models showed good agreement with the experimental results for all the operating conditions. Successful desorption of heavy metals from the P(St-DVB)/CuNi BNC was performed using 0.5 M NaOH solution, and it showed good reusability of the adsorbent during four adsorption–desorption cycles. The results show that P(St-DVB)/CuNi BNC are effective and low-cost adsorbents, and they can be used in real-time large-scale industrial water treatment processes for the removal of heavy metals. HIGHLIGHTS Fixed-bed column was used for the removal of Pb (II), Cd (II), and Zn (II) using poly(styrene–divinylbenzene)/CuNi nanocomposite (P(St-DVB)/CuNi BNC) microspheres, which was found to be efficient and low-cost adsorbent.; 87, 85, and 92% removal efficiencies were achieved for lead, cadmium, and zinc, respectively.; Conducted successful desorption of heavy metals from the P(St-DVB)/CuNi BNC.;http://wst.iwaponline.com/content/87/9/2277adsorptionbimetallic nanoparticlebreakthrough curvefixed-bed columnheavy metal removalstyrene–divinylbenzene nanocomposite |
| spellingShingle | Hridya Thrikkykkal Rosmin Antu Harikumar P. S. Remediation of Pb (II), Cd (II), and Zn (II) from aqueous solutions using porous (styrene–divinylbenzene)/Cu–Ni bimetallic nanocomposite microspheres: continuous fixed-bed column study Water Science and Technology adsorption bimetallic nanoparticle breakthrough curve fixed-bed column heavy metal removal styrene–divinylbenzene nanocomposite |
| title | Remediation of Pb (II), Cd (II), and Zn (II) from aqueous solutions using porous (styrene–divinylbenzene)/Cu–Ni bimetallic nanocomposite microspheres: continuous fixed-bed column study |
| title_full | Remediation of Pb (II), Cd (II), and Zn (II) from aqueous solutions using porous (styrene–divinylbenzene)/Cu–Ni bimetallic nanocomposite microspheres: continuous fixed-bed column study |
| title_fullStr | Remediation of Pb (II), Cd (II), and Zn (II) from aqueous solutions using porous (styrene–divinylbenzene)/Cu–Ni bimetallic nanocomposite microspheres: continuous fixed-bed column study |
| title_full_unstemmed | Remediation of Pb (II), Cd (II), and Zn (II) from aqueous solutions using porous (styrene–divinylbenzene)/Cu–Ni bimetallic nanocomposite microspheres: continuous fixed-bed column study |
| title_short | Remediation of Pb (II), Cd (II), and Zn (II) from aqueous solutions using porous (styrene–divinylbenzene)/Cu–Ni bimetallic nanocomposite microspheres: continuous fixed-bed column study |
| title_sort | remediation of pb ii cd ii and zn ii from aqueous solutions using porous styrene divinylbenzene cu ni bimetallic nanocomposite microspheres continuous fixed bed column study |
| topic | adsorption bimetallic nanoparticle breakthrough curve fixed-bed column heavy metal removal styrene–divinylbenzene nanocomposite |
| url | http://wst.iwaponline.com/content/87/9/2277 |
| work_keys_str_mv | AT hridyathrikkykkal remediationofpbiicdiiandzniifromaqueoussolutionsusingporousstyrenedivinylbenzenecunibimetallicnanocompositemicrospherescontinuousfixedbedcolumnstudy AT rosminantu remediationofpbiicdiiandzniifromaqueoussolutionsusingporousstyrenedivinylbenzenecunibimetallicnanocompositemicrospherescontinuousfixedbedcolumnstudy AT harikumarps remediationofpbiicdiiandzniifromaqueoussolutionsusingporousstyrenedivinylbenzenecunibimetallicnanocompositemicrospherescontinuousfixedbedcolumnstudy |