Biological anoxic treatment of O2-free VOC emissions from the petrochemical industry: A proof of concept study

- The treatment of O2-free VOC emissions can be done by means of denitrifying processes.
- Toluene vapors were successfully removed under anoxic denitrifying conditions.
- A high bacterial diversity was observed.
- Actinobacteria and Proteobacteria were the predominant phyla.
- The nature and number of metabolites accumulated varied with the toluene load