Removal of Zinc Metal from Industrial Wastewaters by Some Fungi
Essam Mohamed Ahmed Abd El Rahman;
Abstract
Applications of biosorption technology for treatment of heavy metals - containing waste stream have significant attention recently by research community.
The biomass that come as a waste by- products of large scale industrial fermentations (molds, bacteria and algae) are serving as basis for metal biosorption. Fungai and algae are preferred because of their high yield of biomass.
The aim of this work is to develop and optimize biosrbent materials from fungal biomass of local origin in order to remove zinc ions from industrial wastewater by simple fast process. This can be summarized as follows:
Several fungal species were isolated from industrial effluent, contaminated water and soil from industrial areas. These isolates were identified and the capacities of zinc removal from aqueous solution were studied.
All these species have shown various biosorption activities for zinc. Three species namely Penicillium resedanum, Aspergillus wentii and Eupenicillium katangense that gave removal capacities (63.74, 65,42 and 69.16 mg/g, respectively) were selected as the best isolated species for zinc biosorption study.
The removal capacities by the experimental fungal species were influenced by changing the pH values of the zinc bearing solution. The optimum pH at which the highest removal capacities (79.6, 79,9 and 80.11 mg/g by P. resedanum, A. wentii and E. katangense, respectively) was found to be 8.6.
Effect of different residence times on zinc adsorption by the experimental fungal species was studied. The maximum
The biomass that come as a waste by- products of large scale industrial fermentations (molds, bacteria and algae) are serving as basis for metal biosorption. Fungai and algae are preferred because of their high yield of biomass.
The aim of this work is to develop and optimize biosrbent materials from fungal biomass of local origin in order to remove zinc ions from industrial wastewater by simple fast process. This can be summarized as follows:
Several fungal species were isolated from industrial effluent, contaminated water and soil from industrial areas. These isolates were identified and the capacities of zinc removal from aqueous solution were studied.
All these species have shown various biosorption activities for zinc. Three species namely Penicillium resedanum, Aspergillus wentii and Eupenicillium katangense that gave removal capacities (63.74, 65,42 and 69.16 mg/g, respectively) were selected as the best isolated species for zinc biosorption study.
The removal capacities by the experimental fungal species were influenced by changing the pH values of the zinc bearing solution. The optimum pH at which the highest removal capacities (79.6, 79,9 and 80.11 mg/g by P. resedanum, A. wentii and E. katangense, respectively) was found to be 8.6.
Effect of different residence times on zinc adsorption by the experimental fungal species was studied. The maximum
Other data
| Title | Removal of Zinc Metal from Industrial Wastewaters by Some Fungi | Other Titles | ازالة معدن الزنك من المخلفات الصناعية المائية بواسطة بعض الفطريات | Authors | Essam Mohamed Ahmed Abd El Rahman | Issue Date | 2000 |
Attached Files
| File | Size | Format | |
|---|---|---|---|
| عصام محمد احمد عبد الرحمن.pdf | 1.22 MB | Adobe PDF | View/Open |
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