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Journal of Applied Sciences and Environmental Management
World Bank assisted National Agricultural Research Project (NARP) - University of Port Harcourt
ISSN: 1119-8362
Vol. 9, No. 1, 2005, pp. 123-126
Bioline Code: ja05022
Full paper language: English
Document type: Research Article
Document available free of charge

Journal of Applied Sciences and Environmental Management, Vol. 9, No. 1, 2005, pp. 123-126

 en Heavy Metal Biosorption potential of Aspergillus check for this species in other resources and Rhizopus check for this species in other resources sp. isolated from Wastewater treated soil
IQBAL AHMAD, SHAHEEN ZAFAR; FARAH AHMAD

Abstract

Two isolates belonging to the predominant genera Aspergillus check for this species in other resources and Rhizopus check for this species in other resources isolated from agricultural field treated with sewage/ industrial effluents were selected for the biosorption potential evaluation of Cr and Cd. Pretreated, dead biomass of above fungi was used for bioadsorption experiment at pH value 4.5 with the biomass, 1-5 mg in a 100 ml metal solution of different concentration (2, 4, 6 and 8 mM) with a contact time of 18 hrs and agitation, 120 rpm. Bioadsorption of Cr ranged from 6.20- 9.5 mg/g of dry mass at one or other initial metal concentrations by Aspergillus and Rhizopus sp. The bioadsorption of Cd was ranged from 2.3-8.21 mg/g. On the comparative basis Rhizopus sp. could bioadsorbed higher concentration of both metals as compared to Aspergillus sp. Bioadsorption of Cd and Cr was influenced by initial metal concentration and nature of organism. The findings revealed that fungi of metal polluted sites showed higher metal tolerance and bioadsorption capacity of chromium and cadmium. @JASEM

 
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