Defluoridation of Ground Waters Using Indigenous Clays
| dc.contributor.advisor | Chandravanshi, B.S. (PhD) | |
| dc.contributor.author | Hussien, Iffa | |
| dc.date.accessioned | 2022-01-25T13:09:38Z | |
| dc.date.accessioned | 2023-11-09T16:19:17Z | |
| dc.date.available | 2022-01-25T13:09:38Z | |
| dc.date.available | 2023-11-09T16:19:17Z | |
| dc.date.issued | 1999-08 | |
| dc.description.abstract | The properti es of fluorine, its occurrence in nature and its source of incidence in various media were presented. The fluoride metabolism, absorption, distribution, excretion and its effect on li ving organisms were briefly rev iewed. Several methods suggested from time to lime for a defluoridation purpose were clearly stated. The fluoride content of natural waters collected from different parts of Ethiopia were reported. A study on the defluoridation of water (art ifi cial and natural) by adsorptionlion·cxchange with clays, collected from diffcn:nl parts uf the: country was examined. The effects of several parameters such as Illass of adsorbent, canlact lime, volume of water, and pH of the solution on the fluoride removal effic iency of clays were studi ed. Among the adopted clays for deOuoridat ion study, fi red clay was found to be the least deOuoridating agent. The other raw clays manifcsted the promising results to use at commun ity and household levels with black and red clays being the best deOuorid at ing agent. A mechanism of deOuoridation by clays was verified experim entally. The regeneration capacity of the clays was tested using a regenerant I % (w/v) NaOI-! . | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/29674 | |
| dc.language.iso | en | en_US |
| dc.publisher | Addis Ababa,University | en_US |
| dc.subject | Defluorida Tion | en_US |
| dc.title | Defluoridation of Ground Waters Using Indigenous Clays | en_US |
| dc.type | Thesis | en_US |