Anaerobic biodegradation of wastewater discharged from a chemical synthesis-based pharmaceutical company

作者：Zhang, Y.; Liang, J. D.^*; Gao, S.; Wang, Y. P.; Wang, J. X.

来源：Desalination and Water Treatment, 2018, 113: 28-35.

DOI：10.5004/dwt.2018.22274

• Pharmaceutical wastewater
• Up-flow anaerobic sludge blanket
• Biodegradability
• Bacterial community

Anaerobic biodegradability of wastewater discharged from a chemical synthesis-based pharmaceutical company was evaluated using two up-flow anaerobic sludge blanket reactors with or without activated carbon addition to the seeding sludge. The wastewater had an anaerobic biodegradability of 86.1% and biogas yield of 52.9%. The addition of activated carbon improved the quality of the granular sludge, resulting in a strong anti-strike performance and high chemical oxygen demand (COD) removal efficiency of around 75% at the organic loading rate of 7 kg COD.m(-3).d(-1). MiSeq PE300 analysis showed both reactors were dominated by Bacteroidetes, Chloroflexi, Firmicutes, and Proteobacteria. Microbial diversity was reduced in the pharmaceutical wastewater compared to the seeding sludge. The abundance of dominant Levilinea, Desulfovibrio, and Methanosaeta, which are the functional microorganism in treating this chemical synthesis-based pharmaceutical wastewater, significantly increased with the addition of activated carbon.

• 出版日期2018-5
• 单位西安交通大学