Petroleum hydrocarbon degrading bacteria belong to more than 1700 indigenous bacteria in 22 districts. According to the petroleum hydrocarbon pollution in different regions, different bacteria groups are selected. Combined with TRI-color dispersion technology, the degradation time is generally 60-90 days, and the degradation rate is 75-90%. Quick effect, strong environmental adaptability, including salt-tolerant bacteria. Packaging: 25kg/barrel.