Tubular biofilter treatment of isobutanol emissions under various organic loading rates

IF 0.5 4区 环境科学与生态学 Q4 ENGINEERING, ENVIRONMENTAL
Hong Chen, Liangzu Peng, Wei Yanxiao, Lie Yu, Bo Jiang, Hong Wang, Guanlong Yu, Guijin Zhang
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引用次数: 1

Abstract

Isobutanol in waste gas streams was treated by a tubular biofilter (TBF) which continuously operated for 364 days under various organic loading rate ( OLR ) from 11 g·m –3 ·h –1 to 66 g·m –3 ·h –1 . Results show that within 60 days, the TBF successfully started up even after changing the OLR from 31.3 to 15.6 g·m –3 ·h –1 . The average removal efficiencies ( RE s) were totally higher than 90% when OLR s ranged from 12.14 to 66.45 g·m –3 ·h –1 . Two distinct performance deterioration periods were observed at days 186–253 and days 280–334, both of which recovered without additional measurement. During these periods, the larvae and adult moth flies, been identified as Psychodinae infested the TBF, greatly affected the TBF performance. When the number of adult Psychodinae decreased, TBF performance recovered. The elimination capacity ( EC ) was 60.42 g·m –3 ·h –1 at the inlet OLR of 66.45 g·m –3 ·h –1 , with the critical EC being around 50 g·m –3 ·h –1 . Even under a low gas empty bed residence time of 15 s, the preferable RE s and EC s under middle or low OLR s were still obtained by the TBF.
管式生物滤池处理不同负载率下的异丁醇排放
在11 g·m -3·h -1 ~ 66 g·m -3·h -1不同有机负荷速率下,采用管式生物滤池(TBF)连续运行364 d,对废气中的异丁醇进行了处理。结果表明,即使将OLR从31.3 g·m -3·h -1改变为15.6 g·m -3·h -1, TBF也能在60 d内成功启动。当OLR值为12.14 ~ 66.45 g·m -3·h -1时,平均去除率均大于90%。在第186-253天和第280-334天观察到两个明显的性能恶化期,两者都在没有额外测量的情况下恢复。在此期间,被鉴定为精神科的幼虫和成虫寄生在TBF上,极大地影响了TBF的性能。当成虫数量减少时,TBF性能恢复。在进口OLR为66.45 g·m -3·h -1时,消除能力(EC)为60.42 g·m -3·h -1,临界EC约为50 g·m -3·h -1。即使在低空床停留时间为15 s的条件下,TBF仍能获得较好的中低OLR条件下的RE s和EC s。
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来源期刊
Environment Protection Engineering
Environment Protection Engineering 环境科学-工程:环境
CiteScore
0.80
自引率
0.00%
发文量
9
审稿时长
12 months
期刊介绍: Water purification, wastewater treatment, water reuse, solid waste disposal, gas emission abatement, systems of water and air pollution control, soil remediation.
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