A method for improving biological manganese oxidation performance of manganese-oxidizing bacteria and application thereof

Abstract

The invention, as a sewage treatment technique, provides a method for improving biological manganese oxidation performance of manganese-oxidizing bacteria and application thereof. By adding biochar, it improves the biological manganese oxidation performance of the manganese-oxidizing bacteria. It can increase the oxidation rate of the divalent manganese after adding the biochar first and the divalent manganese next into the manganese-oxidizing bacteria. The heavy metals, accordingly, in the wastewater could be removed efficiently. The biochar, as an electron shuttle, can prompt the electron transfer and accelerate the oxidation rate of divalent manganese, as well as the gene abundance and expression ability of manganese-oxidizing bacteria and the extracellular superoxide concentration. The biological activity of the manganese-oxidizing bacteria and the oxidation of divalent manganese are enhanced. In addition, the biochar is abundant and low-cost, which may reutilize resources and reduce the treatment cost. It is easy to prepare, release and use it in practice.

Dependencies are inferred from the claim text.