Hydroxyapatite for removal of heavy metals from wastewater
HAP powder of a low crystallinity and rather large specific surface area was synthesized by an environmentally friendly, cost effective precipitation method, and characterized by XRD, FTIR, and BET isotherms. TEM and AFM are used to envisage the surface of HAP nano particles, showing a high porosity...
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| Veröffentlicht in: | Studia Universitatis Babeș-Bolyai. Chemia 2017-01, Vol.62 (4), p.93-104 |
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| container_title | Studia Universitatis Babeș-Bolyai. Chemia |
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| creator | Avram, Alexandra Frentiu, Tiberiu Horovitz, Ossi Mocanu, Aurora Goga, Firuta Tomoaia-Cotişel, Maria |
| description | HAP powder of a low crystallinity and rather large specific surface area was synthesized by an environmentally friendly, cost effective precipitation method, and characterized by XRD, FTIR, and BET isotherms. TEM and AFM are used to envisage the surface of HAP nano particles, showing a high porosity of this ceramic powder. It was used for the removal of metals (Al, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, and Zn) from mine wastewater. Metal contents in the initial and treated samples were quantified by inductively coupled plasma atomic emission spectrometry and high-resolution continuum source atomic absorption spectrometry. By the use of HAP, an efficient removal of all metals was ensured. The increase of [Ca.sup.2+] ions content in the treated water suggests an ion exchange mechanism. Keywords: hydroxyapatite, heavy metal removal, mine wastewater, sorption kinetics |
| doi_str_mv | 10.24193/subbchem.2017.4.08 |
| format | Article |
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Keywords: hydroxyapatite, heavy metal removal, mine wastewater, sorption kinetics</abstract><pub>Universitatea Babes-Bolyai. Chemia</pub><doi>10.24193/subbchem.2017.4.08</doi><tpages>12</tpages><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 1224-7154 |
| ispartof | Studia Universitatis Babeș-Bolyai. Chemia, 2017-01, Vol.62 (4), p.93-104 |
| issn | 1224-7154 2065-9520 |
| language | eng |
| recordid | cdi_gale_infotracacademiconefile_A526440871 |
| source | EZB-FREE-00999 freely available EZB journals |
| subjects | Heavy metals Hydroxyapatites Precipitation (Meteorology) Wastewater |
| title | Hydroxyapatite for removal of heavy metals from wastewater |
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