Atomic Absorption Determination of the Levels of Cr and Pb In Batu Tannery Waste Water and Sebeta River
| dc.contributor.advisor | Tessema, Merid (PhD) | |
| dc.contributor.author | Ahmed, Endris | |
| dc.date.accessioned | 2019-04-01T11:28:47Z | |
| dc.date.accessioned | 2023-11-09T16:18:28Z | |
| dc.date.available | 2019-04-01T11:28:47Z | |
| dc.date.available | 2023-11-09T16:18:28Z | |
| dc.date.issued | 2018-02-02 | |
| dc.description.abstract | Tannery effluents consist of large amounts of heavy metals that are toxic to our health. Release of untreated tannery effluents to the water bodies have a negative impact on water quality directly and human health indirectly. This study was performed to determine the levels of heavy metals (Cr and Pb) in Batu tannery which is located in Kality near little Akaki River to which its effluents enter. Samples of tannery waste water and Sebeta river water were digested using acid digestion method in 69.5-72% conc. HNO3 for two hours at 240 ℃. The levels of Cr found in Batu tannery effluent after AAS determination was 13.5 ± 0.0703 mg/L. Similarly Pb was below detection limit in Batu tannery also. However, both metals were below detection limit in Sebeta River. The obtained result indicated that the concentration of Cr in Batu tannery was above the permitted value of FEPA and WHO. The % R result (99.1 ± 5.33) shows that the digestion procedure was acceptable. | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/17358 | |
| dc.language.iso | en | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | Tannery Effluents | en_US |
| dc.subject | Toxic | en_US |
| dc.subject | Batu Tannery | en_US |
| dc.subject | AAS | en_US |
| dc.subject | Digestion Procedure | en_US |
| dc.title | Atomic Absorption Determination of the Levels of Cr and Pb In Batu Tannery Waste Water and Sebeta River | en_US |
| dc.type | Thesis | en_US |