Academic journal article Iranian Journal of Public Health

Evaluation of Bacterial Tolerance to the Zinc Metal in the Phase 1 Input of Wastewater Treatment Plant of Shahinshahr, Isfahan

Academic journal article Iranian Journal of Public Health

Evaluation of Bacterial Tolerance to the Zinc Metal in the Phase 1 Input of Wastewater Treatment Plant of Shahinshahr, Isfahan

Article excerpt

Background: Agricultural and industrial activities generate wastewater containing heavy metals such as Zinc, which can be a major problem for the ecosystem and human health. Today, the use of microbial biomass for removal of heavy metals from industrial and agricultural effluents has received special attention. This study was conducted to evaluate the resistance of isolated bacteria from the Phase 1 input of wastewater treatment plant of Shahinshahrto Zinc heavy metal.

Methods: For this purpose, the phase 1 input of wastewater treatment plant of Shahinshahr, sampling was conducted in six plastic bottles and immediately to measure the amount of Zinc heavy metal, BOD, COD, temperature and pH were transported to the laboratory. For isolation of Zinc heavy metal-resistant bacteria, collected serial dilutions from speci- mens and 0.5 ml of each dilution in the base culture medium metal PHG II, a concentration of 0.5 mM zinc nitrate were cultured in 3 iterations. After isolation of Zinc-resistant bac- teria, the minimum inhibitory concentration (MIC) to growth of the bacteria was determined. …

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