Phenolic wastewater treatment method

The invention discloses a phenolic wastewater treatment method which comprises the following steps: firstly, performing chemical flocculation; secondly, improving a zero-valent iron-Fenton system reaction; thirdly, performing secondary flocculation; fourthly, performing active carbon adsorption. The phenolic wastewater treatment method has the benefits as follows: the zero-valent iron-Fenton system reaction is taken as the core and combined with inorganic flocculation and active carbon to effectively treat phenolic wastewater which is high in concentration, high in toxicity and difficult to biochemically degrade; the material consumption is low, the cost is low, the operation is easy, and the treatment effect is good.