State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.
School of Engineering, South China Agriculture University, Guangzhou 510642, China.
Bioresour Technol. 2019 Oct;289:121487. doi: 10.1016/j.biortech.2019.121487. Epub 2019 May 16.
The primary objective was to explore the feasibility of anaerobic biofilm on polyurethane (PU), powdered activated carbon (PAC), and biochar in strengthening anaerobic degradation of phenolic compounds and selected nitrogen heterocyclic compounds (NHCs) in coal gasification wastewater (CGW). When total phenols (TPh) was less than 300 mg/L, PAC-based biofilm was more efficient. Whereas, when the TPh concentration was more than 450 mg/L, PU-based biofilm performed the optimal degradation efficiency. Furthermore, microbial community structure analysis showed that PAC and biochar had little effect on the microbial community structure after 120 days of operation, while the addition of PU could lead to the enrichment of Giesbergeria, Caldisericum, Thauera, Methanolinea, and Methanoregula.
主要目的是探索在强化煤气化废水中酚类化合物和选定的含氮杂环化合物（NHCs）的厌氧降解方面，聚氨酯（PU）、粉末活性炭（PAC）和生物炭上的厌氧生物膜的可行性。当总酚（TPh）小于 300mg/L 时，PAC 基生物膜的效率更高。然而，当 TPh 浓度高于 450mg/L 时，PU 基生物膜表现出最佳的降解效率。此外，微生物群落结构分析表明，PAC 和生物炭在运行 120 天后对微生物群落结构几乎没有影响，而添加 PU 会导致 Giesbergeria、Caldisericum、Thauera、Methanolinea 和 Methanoregula 的富集。
