초록

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Abstract ▼ AI-Helper

As a basic research on applying the microbial strains which had been isolated and proved to remove heavy metals, such as Pb, Cd, Zn, and Cu in This laboratory to actual wastewater treatment, optimum condition of the treatment system with addition of single or multiple species of pollutants and micro...

As a basic research on applying the microbial strains which had been isolated and proved to remove heavy metals, such as Pb, Cd, Zn, and Cu in This laboratory to actual wastewater treatment, optimum condition of the treatment system with addition of single or multiple species of pollutants and microorganisms were investigated at small scale. Concentration of the bacterial inoculum was 3000mg/L and 1500mg/L of MLSS for treatment with single and multiple species, respectively. Removal rates of heavy metals were expressed at HRT’s (Hydraulic Retention Time) of 12, 24, and 48 hr. Removal rates of Pb, Cd, Zn, and Cu after 12 days at HRT of 24hr with addition of single and multiple species were 93%, 90%, 80%, and 39%, and 75%, 90%, 74%, and 48%, respectively. Judging from these results, treatment capability of the isolated strains is excellent. Hence, the microorganisms are expected to be applicable to actual wastewater treatment.