Biosorption of iron and manganese from ground water by biomasses of Saccharomyces cerevisiae yeast
Marwy Abdelatti Ahmed;
Abstract
This work investigated the ability of some yeast species in removal of iron and manganese from ground water by biosorption mechanism.
Briefly, the results can be summarized in the following points:
1- Eleven S. cerevisiae yeast strains in alive and dead forms were screened for biosorption and bioaccumulation of iron ions from prepared aqueous solution.
2- S. cerevisiae F707 in alive form was found to be the highest for Fe+2 biosorption compared to other stains (21.9 mg Fe+2/gm yeast biomass).
3- All the tested S. cerevisiae strains in the dead form were less efficient for Fe+2 biosorbtion than alive form. The maximum Fe+2 biosorption efficiency (87.26%) was recorded by dead cells of S. cerevisiae F707. The minimum biosorption efficiency (13.98 %) was recorded by dead cells of S. cerevisiae FH820.
4- Screening of the selected Saccharomyces cerevisiae strains
for Fe+2 biosorption after 90 min revealed that five yeast strains in alive form were selected for Fe+2 biosorption study due to their high Fe+2 biosorption efficiency. S. cerevisiae F707 in the life form proved to be the most efficient for Fe+2 biosorption while the yeast strain FK907 gave the lowest Fe+2 biosorption value.
5- Study of the effect of different factors on Fe+2 biosorption and
residual gave the following results:
- Screening of F707 yeast strain for Fe+2 biosorption after different time intervals indicated that the highest removal efficiency for Fe+2 by yeast biomass was occurred after 20 min until 45 min.
- Results of the estimation of Fe+2 biosorption efficiency by F707 strain indicated that there was an increase in biosorption of Fe+2 with increasing the metal ions concentration in the culture filtrate of F707 strain. On contrary, biosiorption was decreased with increasing biomass concentration.
- Study of the effect of different pH values (4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5 and 9) on Fe+2 biosorption by F707 after 20 min indicated that the maximum Fe+2 biosorption by F707 was observed at pH 9 (5.37 mg/l) while the lowest Fe+2 biosorption value (4.80 mg/l) was
Briefly, the results can be summarized in the following points:
1- Eleven S. cerevisiae yeast strains in alive and dead forms were screened for biosorption and bioaccumulation of iron ions from prepared aqueous solution.
2- S. cerevisiae F707 in alive form was found to be the highest for Fe+2 biosorption compared to other stains (21.9 mg Fe+2/gm yeast biomass).
3- All the tested S. cerevisiae strains in the dead form were less efficient for Fe+2 biosorbtion than alive form. The maximum Fe+2 biosorption efficiency (87.26%) was recorded by dead cells of S. cerevisiae F707. The minimum biosorption efficiency (13.98 %) was recorded by dead cells of S. cerevisiae FH820.
4- Screening of the selected Saccharomyces cerevisiae strains
for Fe+2 biosorption after 90 min revealed that five yeast strains in alive form were selected for Fe+2 biosorption study due to their high Fe+2 biosorption efficiency. S. cerevisiae F707 in the life form proved to be the most efficient for Fe+2 biosorption while the yeast strain FK907 gave the lowest Fe+2 biosorption value.
5- Study of the effect of different factors on Fe+2 biosorption and
residual gave the following results:
- Screening of F707 yeast strain for Fe+2 biosorption after different time intervals indicated that the highest removal efficiency for Fe+2 by yeast biomass was occurred after 20 min until 45 min.
- Results of the estimation of Fe+2 biosorption efficiency by F707 strain indicated that there was an increase in biosorption of Fe+2 with increasing the metal ions concentration in the culture filtrate of F707 strain. On contrary, biosiorption was decreased with increasing biomass concentration.
- Study of the effect of different pH values (4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5 and 9) on Fe+2 biosorption by F707 after 20 min indicated that the maximum Fe+2 biosorption by F707 was observed at pH 9 (5.37 mg/l) while the lowest Fe+2 biosorption value (4.80 mg/l) was
Other data
| Title | Biosorption of iron and manganese from ground water by biomasses of Saccharomyces cerevisiae yeast | Other Titles | الإمتصاص الحيوي للحديد والمنجنيز من المياه الجوفية باستخدام الكتلة الحيوية لخميرة السكاروميسيس سيرفيسيا | Authors | Marwy Abdelatti Ahmed | Issue Date | 2017 |
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