Removal of Zn (II) and Cu (II) Ions from Industrial Wastewaters Using Magnetic Biochar Derived from Water Hyacinth
This study evaluates the effectiveness of magnetic biochar (Fe2O3-EC) derived from water hyacinth in the removal of Cu+2 and Zn+2 from aqueous solution. Fe2O3-EC was prepared by chemical coprecipitation of a mixture of FeCl2 and FeCl3 on water hyacinth biomass followed by pyrolysis. The adsorbent wa...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2019-01-01
|
| Series: | Journal of Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/5656983 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832551267847634944 |
|---|---|
| author | Benias C. Nyamunda Terrence Chivhanga Upenyu Guyo Fidelis Chigondo |
| author_facet | Benias C. Nyamunda Terrence Chivhanga Upenyu Guyo Fidelis Chigondo |
| author_sort | Benias C. Nyamunda |
| collection | DOAJ |
| description | This study evaluates the effectiveness of magnetic biochar (Fe2O3-EC) derived from water hyacinth in the removal of Cu+2 and Zn+2 from aqueous solution. Fe2O3-EC was prepared by chemical coprecipitation of a mixture of FeCl2 and FeCl3 on water hyacinth biomass followed by pyrolysis. The adsorbent was characterized by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) coupled with energy dispersive spectroscopy (EDX). Batch adsorption studies on the effects of temperature, biosorbent dosage, contact time, and initial metal ion concentration were carried out. Fe2O3-EC exhibited optimum contact time, biosorbent dosage, and pH values of 65 min, 1.2 g, and 6, respectively. Fe2O3-EC exhibited strong magnetic separation ability and high sorption capability. Metal ion adsorption onto the biochar conformed to the Langmuir isotherm. Kinetic studies revealed that the adsorption process followed pseudo-second-order model. The calculated thermodynamic parameters showed that the adsorption process was feasible and exothermic in nature. These results have demonstrated that the use of Fe2O3-EC in metal ion removal could provide an alternative way to manage and utilize this highly problematic invasive species. |
| format | Article |
| id | doaj-art-a26fc04680ab49f5aed841d8f6366e8b |
| institution | Kabale University |
| issn | 2314-4904 2314-4912 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Engineering |
| spelling | doaj-art-a26fc04680ab49f5aed841d8f6366e8b2025-02-03T06:01:53ZengWileyJournal of Engineering2314-49042314-49122019-01-01201910.1155/2019/56569835656983Removal of Zn (II) and Cu (II) Ions from Industrial Wastewaters Using Magnetic Biochar Derived from Water HyacinthBenias C. Nyamunda0Terrence Chivhanga1Upenyu Guyo2Fidelis Chigondo3Manicaland State University of Applied Sciences, P. Bag 7001 Mutare, ZimbabweManicaland State University of Applied Sciences, P. Bag 7001 Mutare, ZimbabweMidlands State University, P. Bag 9055 Gweru, ZimbabweMidlands State University, P. Bag 9055 Gweru, ZimbabweThis study evaluates the effectiveness of magnetic biochar (Fe2O3-EC) derived from water hyacinth in the removal of Cu+2 and Zn+2 from aqueous solution. Fe2O3-EC was prepared by chemical coprecipitation of a mixture of FeCl2 and FeCl3 on water hyacinth biomass followed by pyrolysis. The adsorbent was characterized by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) coupled with energy dispersive spectroscopy (EDX). Batch adsorption studies on the effects of temperature, biosorbent dosage, contact time, and initial metal ion concentration were carried out. Fe2O3-EC exhibited optimum contact time, biosorbent dosage, and pH values of 65 min, 1.2 g, and 6, respectively. Fe2O3-EC exhibited strong magnetic separation ability and high sorption capability. Metal ion adsorption onto the biochar conformed to the Langmuir isotherm. Kinetic studies revealed that the adsorption process followed pseudo-second-order model. The calculated thermodynamic parameters showed that the adsorption process was feasible and exothermic in nature. These results have demonstrated that the use of Fe2O3-EC in metal ion removal could provide an alternative way to manage and utilize this highly problematic invasive species.http://dx.doi.org/10.1155/2019/5656983 |
| spellingShingle | Benias C. Nyamunda Terrence Chivhanga Upenyu Guyo Fidelis Chigondo Removal of Zn (II) and Cu (II) Ions from Industrial Wastewaters Using Magnetic Biochar Derived from Water Hyacinth Journal of Engineering |
| title | Removal of Zn (II) and Cu (II) Ions from Industrial Wastewaters Using Magnetic Biochar Derived from Water Hyacinth |
| title_full | Removal of Zn (II) and Cu (II) Ions from Industrial Wastewaters Using Magnetic Biochar Derived from Water Hyacinth |
| title_fullStr | Removal of Zn (II) and Cu (II) Ions from Industrial Wastewaters Using Magnetic Biochar Derived from Water Hyacinth |
| title_full_unstemmed | Removal of Zn (II) and Cu (II) Ions from Industrial Wastewaters Using Magnetic Biochar Derived from Water Hyacinth |
| title_short | Removal of Zn (II) and Cu (II) Ions from Industrial Wastewaters Using Magnetic Biochar Derived from Water Hyacinth |
| title_sort | removal of zn ii and cu ii ions from industrial wastewaters using magnetic biochar derived from water hyacinth |
| url | http://dx.doi.org/10.1155/2019/5656983 |
| work_keys_str_mv | AT beniascnyamunda removalofzniiandcuiiionsfromindustrialwastewatersusingmagneticbiocharderivedfromwaterhyacinth AT terrencechivhanga removalofzniiandcuiiionsfromindustrialwastewatersusingmagneticbiocharderivedfromwaterhyacinth AT upenyuguyo removalofzniiandcuiiionsfromindustrialwastewatersusingmagneticbiocharderivedfromwaterhyacinth AT fidelischigondo removalofzniiandcuiiionsfromindustrialwastewatersusingmagneticbiocharderivedfromwaterhyacinth |