Study the Effect of Reeds Tissues on the Adsorption of Heavy Metals and Bacteria from Sewage Water
| dc.contributor.author | Salman, Munjeda Tahseen | |
| dc.date.accessioned | 2022-09-25T07:26:51Z | |
| dc.date.available | 2022-09-25T07:26:51Z | |
| dc.date.issued | 2017-03-28 | |
| dc.description.abstract | The main problem here is to study the potential of Phragmites australis and Phragmites used in the purification plant in Sarra village (leaves, stems and roots) to absorb a specific heavy metal ions (Fe3 +, Cd2 + , Cu2 +, Ni2 + and Pb2 +) and their ability to stop bacterial activity in sewage water. Several experiments were conducted under different conditions and variables such as temperature, pH, concentration of metal ions, plant biomass and contact time to determine the optimal conditions for the best adsorption of the metal ions specified in the research. It was observed that the removal of these ions from the aqueous solutions was at a concentration of 20mg / L and a temperature of 25oC and acidity around pH = 7 and within 15-30 minutes. The highest uptake rates under the optimum conditions for metal ions were obtained using the biomass of both plants as follows: Iron 77% absorbed by roots, Cadmium 72% absorbed Phragmites australis leaves, 88% copper absorbed by phragmites australis leaves and stalks, 93% nickel absorbed by phragmites australis and lead absorbed with the highest percentage which was 97% by the stalks of Phragmites australis, XIV so the absorption of lead element was studied under the influence of different conditions of temperature, pH and contact time. Experiments were done to examine the behavior of absorption under competitive conditions in the presence of ions together in water. The results showed that the order of percentages for the removal of metal ions was as follows: Pb + 2> Cu + 2> Fe + 3> Ni + 2> Cd + 2 . The results and analysis showed that the adsorption process can be described according to the Langmuir model, indicating that the adsorption process is monolayer. The negative ΔG values indicate that the adsorption process is appropriate and spontaneous at the specified temperatures. The negative value of ΔH° indicates that the adsorption process is exothermic and is favored at low temperatures not more above room temperature, and the value of ΔH° is much lower of those associated with chemical adsorption, confirming the physical nature of the adsorption process. The small positive value of ΔS° indicates structural changes on the biomass surface, and that the disorder has increased near the adsorption surface during the adsorption process. The results confirm that the biomass of the plant is effective, suitable and safe in removing heavy metal ions from sewage water. Phragmites from Sarra (leaves, shoots and roots) had been tested for their antibacterial activity and the result was negative. | en_US |
| dc.identifier.uri | https://hdl.handle.net/20.500.11888/17576 | |
| dc.language.iso | other | en_US |
| dc.publisher | جامعة النجاح الوطنية | en_US |
| dc.supervisor | Ahmad Abu-Obiad , Raed Alkowni | en_US |
| dc.title | Study the Effect of Reeds Tissues on the Adsorption of Heavy Metals and Bacteria from Sewage Water | en_US |
| dc.title.alternative | دراسة تأثير نبات البوص على أمتصاص المعادن السامه ونشاط البكنيريا الموجوده في المياه الملوثة | en_US |
| dc.type | Thesis | en_US |