Preparation of basic yttrium carbonate for phosphate removal
Removal of phosphate ions from aqueous solutions has been studied with basic yttrium carbonate (BYC) of different compositions prepared by homogeneous precipitation with yttrium chloride and urea. Higher carbonate content was obtained with higher concentration of urea. Removal of phosphate was signi...
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| Format: | Article |
| Language: | English |
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Water Environment Federation
1997
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| Online Access: | http://psasir.upm.edu.my/id/eprint/51101/ http://psasir.upm.edu.my/id/eprint/51101/1/51101.pdf |
| _version_ | 1848851741635772416 |
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| author | Haron, Md. Jelas Wasay, Syed Abdul Tokunaga, Shuzo |
| author_facet | Haron, Md. Jelas Wasay, Syed Abdul Tokunaga, Shuzo |
| author_sort | Haron, Md. Jelas |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Removal of phosphate ions from aqueous solutions has been studied with basic yttrium carbonate (BYC) of different compositions prepared by homogeneous precipitation with yttrium chloride and urea. Higher carbonate content was obtained with higher concentration of urea. Removal of phosphate was significant at pH less than 12 and dependent on the composition of BYC. The possible mechanism for removal is ion exchange with carbonate or hydroxide groups between pH 7 and 12 and through complex formation of phosphate with yttrium ions and ion exchange between pH 2 and 6. The phosphate adsorption capacity of BYC prepared with a higher concentration of urea was higher than that of BYC prepared with a lower urea concentration. The removal of phosphate followed a Langmuir model. The BYC of higher carbonate content gave higher percentage removal in the pH range of 6 to 11. The high phosphate adsorption capacity of the compound can be attributed to its carbonate group content and surface area. The phosphate adsorption was not affected by F−, SO4 2−, NO3 −, Br−, and I− in the basic pH range. |
| first_indexed | 2025-11-15T10:27:00Z |
| format | Article |
| id | upm-51101 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:27:00Z |
| publishDate | 1997 |
| publisher | Water Environment Federation |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-511012017-04-27T09:52:06Z http://psasir.upm.edu.my/id/eprint/51101/ Preparation of basic yttrium carbonate for phosphate removal Haron, Md. Jelas Wasay, Syed Abdul Tokunaga, Shuzo Removal of phosphate ions from aqueous solutions has been studied with basic yttrium carbonate (BYC) of different compositions prepared by homogeneous precipitation with yttrium chloride and urea. Higher carbonate content was obtained with higher concentration of urea. Removal of phosphate was significant at pH less than 12 and dependent on the composition of BYC. The possible mechanism for removal is ion exchange with carbonate or hydroxide groups between pH 7 and 12 and through complex formation of phosphate with yttrium ions and ion exchange between pH 2 and 6. The phosphate adsorption capacity of BYC prepared with a higher concentration of urea was higher than that of BYC prepared with a lower urea concentration. The removal of phosphate followed a Langmuir model. The BYC of higher carbonate content gave higher percentage removal in the pH range of 6 to 11. The high phosphate adsorption capacity of the compound can be attributed to its carbonate group content and surface area. The phosphate adsorption was not affected by F−, SO4 2−, NO3 −, Br−, and I− in the basic pH range. Water Environment Federation 1997 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/51101/1/51101.pdf Haron, Md. Jelas and Wasay, Syed Abdul and Tokunaga, Shuzo (1997) Preparation of basic yttrium carbonate for phosphate removal. Water Environment Research, 69 (5). pp. 1047-1051. ISSN 1061-4303; ESSN: 1554-7531 http://www.ingentaconnect.com/content/wef/wer/1997/00000069/00000005/art00015 10.2175/106143097X125759 |
| spellingShingle | Haron, Md. Jelas Wasay, Syed Abdul Tokunaga, Shuzo Preparation of basic yttrium carbonate for phosphate removal |
| title | Preparation of basic yttrium carbonate for phosphate removal |
| title_full | Preparation of basic yttrium carbonate for phosphate removal |
| title_fullStr | Preparation of basic yttrium carbonate for phosphate removal |
| title_full_unstemmed | Preparation of basic yttrium carbonate for phosphate removal |
| title_short | Preparation of basic yttrium carbonate for phosphate removal |
| title_sort | preparation of basic yttrium carbonate for phosphate removal |
| url | http://psasir.upm.edu.my/id/eprint/51101/ http://psasir.upm.edu.my/id/eprint/51101/ http://psasir.upm.edu.my/id/eprint/51101/ http://psasir.upm.edu.my/id/eprint/51101/1/51101.pdf |