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| Removal of Bromate Using Nanoscale Zero-valent Iron Supported on Spherical Lignin |
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| DOI：10.11981/j.issn.1000-6842.2018.01.7 |
| Key Words:spherical lignin; bromate; nanoscale zero-valent iron; adsorption; removal |
| Fund Project:国家自然科学基金面上基金资助项目（No.21577018）。 |
| Author Name | Affiliation | | 刘 畅 | 福州大学环境与资源学院，福建福州，350116 | | 刘明华* | 福州大学环境与资源学院，福建福州，350116 | | 刘以凡 | 福州大学环境与资源学院，福建福州，350116 |
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| Abstract: |
| In order to remove the tracebromate in drinking water， nanoscale zero-valent iron supported on spherical lignin （LSAC-Fe） was synthesized through liquid-phase reduction method using spherical cyanoethyl lignin as raw material.The LSAC-Fe was characterized by field emission scanning electron microscopy （FESEM）， X-ray diffractometer （XRD）， X-ray photoelectron spectroscopy （XPS） and nitrogen adsorption （BET）. The adsorption effect of LSAC-Fe on BrO-3 under different conditions was investigated， and the thermodynamic adsorption and removal mechanism were studied. The results showed that the nanoscale zero-valent iron was distributed homogeneously on the spherical lignin， and LSAC-Fe had a high surface activity. The removal percentage of BrO-3 decreased with the increase of the initial pH of the solution of and the initial concentration of BrO-3. The BrO-3adsorption process of LSAC-Fe was the endothermic process， and the temperature rise was beneficial to the adsorption of BrO-3 on LSAC-Fe． |
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