Anaerobic degradation of phenol can be classified as:methanogenic fermentation by the consortia of bacteria, sulfate-reducing bacteria, denitrifying bacteria and metal-reducing bacteria.

• 苯酚厌氧降解微生物可分为产甲烷聚生体细菌、硫酸盐还原细菌、反硝化细菌及金属还原细菌。