Lead Removal Using Industrially Sourced Consortia: Influence of Lead and Glucose Concentrations

Lead Removal Using Industrially Sourced Consortia: Influence of Lead and Glucose Concentrations

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The objective of color touch 7/97 the current study was to explore the lead removal capabilities of two locally sourced industrial consortia using batch fermenters.The consortia were obtained from lead contaminated soil at a) a lead mine and b) an automotive battery recycling plant.The experiments were performed under anaerobic conditions using a rich growth medium (Luria Bertani Broth) with two different background lead concentrations (80 mg/L and 160 mg/L).The influence of added glucose to the medium was also studied.The residual aqueous lead was used as a measure of the lead removal capacity.

Findings attest to the effectiveness of the industrially obtained consortia at removing lead from solution for both lead concentrations.Lead removal of between 91% and 93% in 168 hours and between 63% and 76% in 240 hours were achieved for the 80 mg/L and 160 mg/L experiments respectively.Minimal change was measured in the absorbances of these experiments, indicating a non-growth related lead removal mechanism.A glucose concentration of 60 g/L caused severe substrate inhibition which reduced the lead removal effectiveness to between 5% and 30% over a 214-hour period.The results for benify toyota both consortia displayed significant similarities, indicating that analogous strains of organisms were present and active under the specific conditions.