Neisi Abdolkazem, Afshin Shirin, Rashtbari Yousef, Babaei Ali Akbar, Khaniabadi Yusef Omidi, Asadi Anvar, Shirmardi Mohammad, Vosoughi Mehdi
Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
Department of Environmental Health Engineering, School of Public Health, Student research committee, Ardabil University of Medical Sciences, Ardabil, Iran.
Data Brief. 2018 Jul 4;19:2041-2046. doi: 10.1016/j.dib.2018.06.094. eCollection 2018 Aug.
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.
本研究的主要目的是在中试规模下，利用好氧序批式反应器（SBR）研究甲基叔丁基醚（MTBE）的生物降解。该反应器由一个3毫米厚的玻璃圆筒制成，内径12厘米，高60厘米。SBR按五个阶段运行。第一阶段是向反应器注水约10分钟。第二阶段是主反应器对石油废水进行生物处理约21.55小时。第三阶段是沉淀（1小时）。第四阶段是从反应器排水约10分钟。最后阶段是闲置约45分钟。实验表明，混合微生物群在24小时的周期内能够降解高达250毫克/升的高浓度甲醇以及高达70毫克/升的MTBE浓度。然而，混合微生物群无法降解浓度超过70毫克/升的MTBE。微生物一般从法吉尔石化废水处理厂分离得到。分析表明，混合微生物群能够使出水的化学需氧量（COD）生物降解至1350毫克/升。好氧SBR可用于对含有甲醇、MTBE等污染物的石油废水进行生物处理，效率可观。
