Anionic competition on arsenate removal by modified granular ferric hydroxide adsorbent
The presence of inorganic forms of arsenic in water causing a serious threat to human health. Exposure of arsenic can cause serious diseases such as skin discoloration, cancer of skin, kidney and lung, blood vessel diseases, high blood pressure, and reproductive disorders. Removal of arsenic to pro...
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| Format: | Article |
| Language: | English |
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Vietnam Ministry of Science and Technology
2023-03-01
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| Series: | Vietnam Journal of Science, Technology and Engineering |
| Subjects: | |
| Online Access: | https://vietnamscience.vjst.vn/index.php/vjste/article/view/1109 |
| _version_ | 1797866213040193536 |
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| author | Hoang Giang Pham Tran Thanh Son Nguyen Thi Thuy Pham Manh Khai Nguyen Bart Vander Bruggen Thi Thanh Mai Nguyen |
| author_facet | Hoang Giang Pham Tran Thanh Son Nguyen Thi Thuy Pham Manh Khai Nguyen Bart Vander Bruggen Thi Thanh Mai Nguyen |
| author_sort | Hoang Giang Pham |
| collection | DOAJ |
| description |
The presence of inorganic forms of arsenic in water causing a serious threat to human health. Exposure of arsenic can cause serious diseases such as skin discoloration, cancer of skin, kidney and lung, blood vessel diseases, high blood pressure, and reproductive disorders. Removal of arsenic to provide safe drinking water was conducted to investigate the effects of individual and combined anions (sulphate, nitrate, phosphate, and chloride ions) on the arsenate adsorption capacity of modified granular ferric hydroxide adsorbent in batch experiments. The observed adsorption data fit the Langmuir model well. The presence of sulphate (400 mg/l), nitrate (15 mg/l), and chloride (250 mg/l) ions did not significantly affect the arsenate adsorption and the maximum adsorption capacity of arsenic was reduced by less than 5%. In contrary, phosphate ions showed strong competition for the adsorption process as the maximum adsorption capacity of the material was reduced by 59.8 and 73% at concentrations of 0.2 and 0.5 mg/l, respectively. The results also showed that phosphate anions were slightly preferable than arsenate in their competitive adsorption by the adsorbent.
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| first_indexed | 2024-04-09T23:20:23Z |
| format | Article |
| id | doaj.art-1ef692599890466f9b64f33633d9b771 |
| institution | Directory Open Access Journal |
| issn | 2525-2461 2615-9937 |
| language | English |
| last_indexed | 2024-04-09T23:20:23Z |
| publishDate | 2023-03-01 |
| publisher | Vietnam Ministry of Science and Technology |
| record_format | Article |
| series | Vietnam Journal of Science, Technology and Engineering |
| spelling | doaj.art-1ef692599890466f9b64f33633d9b7712023-03-21T19:36:47ZengVietnam Ministry of Science and TechnologyVietnam Journal of Science, Technology and Engineering2525-24612615-99372023-03-0165110.31276/VJSTE.65(1).38-42Anionic competition on arsenate removal by modified granular ferric hydroxide adsorbentHoang Giang PhamTran Thanh Son NguyenThi Thuy PhamManh Khai NguyenBart Vander BruggenThi Thanh Mai Nguyen The presence of inorganic forms of arsenic in water causing a serious threat to human health. Exposure of arsenic can cause serious diseases such as skin discoloration, cancer of skin, kidney and lung, blood vessel diseases, high blood pressure, and reproductive disorders. Removal of arsenic to provide safe drinking water was conducted to investigate the effects of individual and combined anions (sulphate, nitrate, phosphate, and chloride ions) on the arsenate adsorption capacity of modified granular ferric hydroxide adsorbent in batch experiments. The observed adsorption data fit the Langmuir model well. The presence of sulphate (400 mg/l), nitrate (15 mg/l), and chloride (250 mg/l) ions did not significantly affect the arsenate adsorption and the maximum adsorption capacity of arsenic was reduced by less than 5%. In contrary, phosphate ions showed strong competition for the adsorption process as the maximum adsorption capacity of the material was reduced by 59.8 and 73% at concentrations of 0.2 and 0.5 mg/l, respectively. The results also showed that phosphate anions were slightly preferable than arsenate in their competitive adsorption by the adsorbent. https://vietnamscience.vjst.vn/index.php/vjste/article/view/1109arsenatecompeting anionsiron hydroxide-based adsorbent |
| spellingShingle | Hoang Giang Pham Tran Thanh Son Nguyen Thi Thuy Pham Manh Khai Nguyen Bart Vander Bruggen Thi Thanh Mai Nguyen Anionic competition on arsenate removal by modified granular ferric hydroxide adsorbent Vietnam Journal of Science, Technology and Engineering arsenate competing anions iron hydroxide-based adsorbent |
| title | Anionic competition on arsenate removal by modified granular ferric hydroxide adsorbent |
| title_full | Anionic competition on arsenate removal by modified granular ferric hydroxide adsorbent |
| title_fullStr | Anionic competition on arsenate removal by modified granular ferric hydroxide adsorbent |
| title_full_unstemmed | Anionic competition on arsenate removal by modified granular ferric hydroxide adsorbent |
| title_short | Anionic competition on arsenate removal by modified granular ferric hydroxide adsorbent |
| title_sort | anionic competition on arsenate removal by modified granular ferric hydroxide adsorbent |
| topic | arsenate competing anions iron hydroxide-based adsorbent |
| url | https://vietnamscience.vjst.vn/index.php/vjste/article/view/1109 |
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