Treatment method for wastewater containing phenolic compounds

摘要

PROBLEM TO BE SOLVED: To provide a technique for establishing a mixed microorganism system including a microorganism that has an ability to decompose a phenol compound in a simple, easy and inexpensive manner, and to provide a technique for purifying the phenol compound efficiently.SOLUTION: There is provided a method for treating a phenol compound-containing wastewater, in which the phenol compound contained in the wastewater in a water treatment tank is subjected to decomposition treatment by an Alcaligenes microorganism supported on the surface of a carrier 11 which is stored with sludge in the water treatment tank. A carrier for treating the phenol compound-containing waste water is filled into the water treatment tank and, under continuous aeration conditions, the phenol compound is subjected to a decomposition treatment by the Alcaligenes microorganism, in which the carrier is obtained by aggregating fibrous bodies made of polypropylene in the shape of a block having an apparent specific gravity of 40 g/L to 90 g/L, the fibrous bodies made of polypropylene having a surface smoothness (Ra) of 0.1 m to 0.5 m.SELECTED DRAWING: Figure 1