Influence of Microbial Inoculum Levels on the Removal of Heavy Metals from Mine Wastewater
Heavy metals released from mine wastewater can severely contaminate surrounding soils and water bodies.To explore the application prospects of microbial remediation technology in the treatment of heavy metal pollution in mine wastewater,the removal effects of five heavy metals by sulfate-reducing bacteria,Pseudomonas adaceae,and white-rot fungi under different microbial inoculation conditions of low,medium,and high were carried out.Results showed that under high inoculum levels 1×108 CFU/mL,the removal rates of nickel by sulfate-reducing bacteria,Pseudomonas adaceae,and white-rot fungi were 65.0％,64.0％,and 63.5％,respectively;for lead,the removal rates were 61.0％,60.5％,and 60.0％;and for cadmium,the removal rates were 60.0％,56.0％,and 56.0％.The study provides a scientific basis and technical support for the remediation of heavy metal-contaminated mine wastewater.
mine wastewaterheavy metal pollutionmicrobial remediationremoval mechanisms
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