Method for degrading gallic acid in wastewater by using Phanerochaete chrysosporium

Abstract

The invention discloses a technique for degrading gallic acid in wastewater by using Phanerochaete chrysosporium, relating to the field of bioengineering. The technique comprises the following steps: by using Phanerochaete chrysosporium as the initial strain, carrying out liquid shake culture and liquid strain amplification culture, transferring the strain solution into the wastewater containing gallic acid, supplementing certain nutrient substances, and carrying out fermentation culture. By using the technique, the removal rate of the gallic acid can reach 60-100%.

Description

technical field

[0001] The invention relates to the technical field of bioengineering, in particular to using Phanerochaete chrysosporium to degrade waste water containing gallic acid. After concentrating or diluting the original waste water until the content of gallic acid is 1-50 g / L, the components of the culture medium are supplemented, and Phanerochaete chrysosporium strains are added to degrade the gallic acid in the waste water. After degradation by Phanerochaete chrysosporium, the removal rate of gallic acid can reach 60-100%. Background technique

[0002] The main components of dissolved organic matter (DOM) in natural water bodies are natural organic acids (Natural organic acids, NOA), and 15-30% of natural organic acids are hydrophilic small molecule organic acids, and gallic acid is a natural organic acid. The ubiquitous hydrophilic small molecule organic acids will bring the following problems in the drinking water purification process: 1) affect the color, tas...