Successful operation of a pilot scale ZVI-UASB reactor for real dye wastewater treatment
The first pilot-scale ZVI-UASB reactor enlarged from laboratory-scale was used to enhance actual dye wastewater treatment in Haicheng, China. During 191 days operation, the average COD removal maintained well at about 90％ with the fluctuant influent in this reactor, while it was only 18.3％ in the local anaerobic treatment equipment. Granularity analysis and SEM observation showed that the average particle size of the sludge increased to 486 μ m, and the surface of the granular sludge is dense. FISH analysis confirmed that the relative content of archaea was increased to 62.5％, which was significantly higher than that in the local anaerobic tank (32.3％). PCR-DGGE results indicated that the microbial communities shifted during their adaptation process for actual dye wastewater treatment. The first pilot-scale ZVI-UASB reactor was started-up successfully for actual dye wastewater treatment, the excellent treatment performance and stable operation were achieved not only high COD removal but also effective color removal.
dye anaerobic treatment zero valent iron (ZVI) pilot scale
Jingxin Zhang Yaobin Zhang Xie Quan
Key Laboratory of Industrial Ecology and Environmental Engineering (Dalian University of Technology), Ministry of Education, School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
国际会议
天津
英文
20-29
2011-11-12（万方平台首次上网日期，不代表论文的发表时间）