[Remediation Characteristics of Oil-contaminated Soil by Composite Microbial Communities].

To efficiently remediate oil-contaminated soil, the degradation characteristics of petroleum hydrocarbons were explored using composite petroleum-degrading flora. The results showed that the degradation rates of the J0, H, HN, HK, and HKN groups were 9.82%, 33.

[Action Mechanism of on Microalgae During Nitrogen Metabolism in Urban Tailwater].

To improve deep denitrification of black and odorous water and improve the quality of surface water, we studied the characteristics of nitrogen metabolism and denitrification of urban tailwater by microalgae (Z), (Y), and microalgae (ZY). The results showed that there was a good removal effect of ammonia nitrogen of group Z and group ZY in urban tailwater. The degradation rate of both groups reached 95%.