Effect of rhamnolipids on the biodegradation of m-dichlorobenzene in biotrickling filters: Performance and mechanism

Yang, Bairen; Wang, Jiajie; Wu, Menglei; Shang, Qingqing; Zhang, Hao

doi:10.1016/j.jenvman.2022.115951

Cited by 7 publications

(1 citation statement)

References 45 publications

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“…In addition, understanding the characteristics of microorganisms is crucial to the analysis of biological treatment. Extracellular polymers (EPS) play an important role in the survival of microorganisms and the formation of biofilms [34,35]. EPS mainly includes protein (PN) and polysaccharide (PS) [36].…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of a Novel Bio-Trickling Filter for Styrene Waste Gas Treatment

Wang

Gao

Li³

et al. 2023

Sustainability

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In recent years, styrene waste gas has become a hot issue in the waste gas treatment industry due to its hydrophobicity and easy polymerization. This study is aimed at the problems of long empty bed residence time and low removal capacity of waste gas from styrene degradation by bio-trickling filter (BTF). A novel bio-trickling filter (NBTF) that we designed was used to explore the effects of styrene inlet concentration, empty bed residence time (EBRT), and starvation period on the performance of NBTF in the degradation of styrene waste gas. The experimental results show that the NBTF can be started in 17 days; when the inlet concentration was lower than 1750 mg/m3 and the EBRT was 59.66 s, the removal efficiency (RE) of styrene can reach 100%. When the inlet concentration was 1000 mg/m3 and the EBRT was greater than 39.77 s, styrene waste gas can also be completely degraded. The above proves that NBTF can complete the degradation of styrene waste gas with high concentration under the condition of short EBRT; in the whole operation process, the maximum elimination capability (EC) of styrene was 112.96 g/m3/h, and NBTF shows excellent degradation performance of styrene. When the starvation period was 2 days, 7 days and 15 days, respectively, NBTF can recover high degradation performance within 2 days after restart. The NBTF has good operation performance in 124 days of operation, which proves that the NBTF can effectively degrade styrene waste gas. This provides a reference basis for industrial treatment of styrene waste gas in the future.

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Section: Introductionmentioning

confidence: 99%