Phenolic Compounds Removal from Aqueous Solutions by Upflow Anaerobic Sludge Blanket - UASB

Wastewater contains various pollutants in different amounts among which the phenolic compounds are considered as the most toxic chemicals that are widely used in industries. High rate anaerobic treatment systems, are bioreactors in which the sludge retention time is separated from HRT. This will slow down the growth of anaerobic bacteria with high concentration in the reactor and it leads to rapid transition of organic matter in wastewater system. Among the anaerobic methods to remove phenolic compounds, UASB reactor was used due to high efficiency and low cost for various phenolic wastewater treatment. In this study, UASB reactors that have been used for analysis of phenolic compounds and the results of them have been investigated. According to study, the results showed that the reactor was efficient enough to remove phenol and phenolic compounds from wastewater and is affected by proper launching of the reactor, substrates, the thermal and Hydraulic shock , Hydraulic remaining time, the organic load, temperature and wastewater recirculation.