Efficiency of sequencing batch reactor for removal of organic matter in the effluent of petroleum wastewater.

ABSTRACT: The main aim of this research was to study the biodegradation of Methyl Tertiary Butyl Ether (MTBE) using aerobic sequencing batch reactor (SBR) at a pilot-Scale. The reactor was made of a 3?mm-thick glass cylinder with an internal diameter of 12?cm and height of 60?cm. SBR operated in five phases. The first phase was filling the reactor for about 10?min. the second phase was the main reactor for biological treatment of petroleum wastewater about 21.55?h. The third phase was the sedimentation (1?h). The fourth phase was decanting from the reactor for about 10?min. The last phase consisted of idle for about 45?min. The experiments showed that the mixed microbial mass is able to degrade high concentration of methanol up to 250?mg/l, and concentration of MTBE up to 70?mg/l for a 24?h cycle. However, the mixed microbial mass is not able to degrade MTBE with concentration more than 70?mg/l. Microorganisms were generally isolated from Fajr petrochemical wastewater treatment plant. Analysis showed that the mixed microbial mass able to biodegradation of COD up to 1350?mg/l in effluent. Aerobic SBR can be used for biological treatment of the petroleum wastewater containing pollutants such as methanol, MTBE with a promising efficiency.

SUBMITTER: Neisi A 

PROVIDER: S-EPMC6141387 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature