Analysis of influence factors on leachate treatment by complex microorganisms

  Objective   To analyze and study the influence of the leachate concentration, pH, inoculation amount and treated time on treatment efficiency with complex microorg anisms.

  Methods   The high effective complex microor ganisms were domesticated to treat the leachate and the Chemical Oxygen Demand(CODCr)and NH₃-N were detected.

  Results   The pH 6.5~8.5 was suitable for the complex microorg anisms growth.The highest COD_Cr what the complex microor ganisms could endure was 11 520 mg/L and the best inoculation amount was 5×10⁵ cfu/ml under the condition.The inoculation amount should match the leachate concentration.The complex microorg anisms brought better treatment efficiency for two days in generally, and adding the treated time could be benefit to degrading the COD_Cr and NH₃-N.

  Conclusion   The complex microorganisms could degrade the COD_Cr and NH₃-N of the leachate well.