Due to environmental requirements, the treatment of water from industrial processes has become a priority and under this premise phenol has served as a model compound to test new treatment processes mainly because it is a molecule that represents a family of chemical compounds with high toxicity and known and also these compounds are produced by many important industrial processes such as the oil, pharmaceutical, food industry, among others. Many processes have been tested to reduce the amount of phenols in water, but it has been found over the years that biodegradation is the simplest, most economical and easiest application process for the large volumes of industrial water produced. The objective of this research was to evaluate the biodegradation of phenol in aqueous medium by double-encapsulated bacteria in PVA-Alg and silica matrices. Different ratios of PVA and Alg and sodium and ludox® silicate were evaluated to find the best matrix for the study of phenol biodegradation. Likewise, a microorganism with the ability to degrade hydrocarbons was isolated. The results obtained allowed us to show that the best PVA-Alg matrix was P4-A1, since it presented the best results in the feasibility, shape, size and stability tests. It was found that the best matrix of sodium and ludox® silicate was S1-L5 because it presented, possibly a smaller pore size compared to the other matrices evaluated. Finally, regarding the biodegradation test, it was found that the phenol removal capacity by the free-isolated and encapsulated microorganism in the P4-A1 matrix was greater than the phenol removal capacity by Pseudomonas putida ATCC 49128 with 12 and 14% removal by the isolated microorganism and 7 and 10% by Pseudomonas putida ATCC 49128.