Effect of surfactant on styrene removal from waste gas streams in biotrickling filters

Song, Ting; Yang, Chunping; Zeng, Guangming; Yu, Guanlong; Xu, Chao

doi:10.1002/jctb.3717

Cited by 50 publications

(34 citation statements)

References 24 publications

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“…Enhanced removal of hydrophobic VOCs from waste gas by surfactants has also been reported by other investigators. Song et al (2012) report that the RE and EC of a BTF when Triton X-100 was applied were higher than that of the control BTF for treatment of high concentration styrene.…”

Section: Effect Of Organic Lr On N-hexane Removalmentioning

confidence: 94%

“…Therefore, saponins decreased the growth rate of the microorganisms significantly, and excessive accumulation of biomass within biofilter medium bed could be prevented. Song et al (2012) report that Triton X-100 can also prevent the growth of microorganisms although at a lesser degree, and the pressure drop values for one BTF reached to about 130 Pa on in 70 days, while another BTF only increased to 80 Pa in which Triton X-100 existed. Wang et al (2012) also show that the increase of both the biomass concentration within the media and the pressure drop between the outlet and inlet occurred simultaneously during the whole operation period, which indicates that the pressure drop can be utilized as an index to monitor biomass concentration in packing media.…”

Section: Effect Of Organic Lr On N-hexane Removalmentioning

confidence: 95%

“…On day 1, the RE for BTF1 and BTF2 was 5.6% and 5.9%, respectively, and the pressure drop in both BTFs was only about 20 Pa. The pressure drop read from a U-tube water manometer (1 mm H 2 O = 10 Pa) was used to monitor biomass accumulated within the BTF medium bed (Song et al, 2012). The RE for n-hexane in both BTFs was lower than 20% during the first 3 days, and biomass was observed to accumulate gradually within the following several days.…”

Section: Btf Performance In Start-up Stagementioning

confidence: 99%

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Effect of saponins on n-hexane removal in biotrickling filters

Yang

Chen

et al. 2015

Bioresource Technology

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Section: Effect Of Organic Lr On N-hexane Removalmentioning

confidence: 94%

Section: Effect Of Organic Lr On N-hexane Removalmentioning

confidence: 95%

Section: Btf Performance In Start-up Stagementioning

confidence: 99%

See 1 more Smart Citation

Effect of saponins on n-hexane removal in biotrickling filters

Yang

Chen

et al. 2015

Bioresource Technology

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“…Song et al used a nonionic surfactant to improve the removal efficiency of styrene at high organic loading rates in BTFs. The results showed that at an average organic loading rate of 201.7 g m ‐3 h ‐1 , the removal efficiency of styrene increased from 50% in the absence of surfactant to 82% in the presence of surfactant . To enhance the bioavailability of n‐hexane in biofilters, Cheng et al examined the effect of addition of an anionic surfactant in the feeding nutrient solution of BTFs.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of a sequential biotrickling–biofiltration unit for removal of VOCs from the headspace of crude oil storage tanks

Khoramfar

Jones

Boswell³

et al. 2018

J of Chemical Tech & Biotech

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BACKGROUND Petrochemical refineries and production sites are considered to be the second greatest source of VOC emissions after vehicle exhausts. The feasibility and performance of a novel sequential biotrickling‐biofiltration unit for the treatment of a mixture of VOCs in the headspace of an oil and gas production tank battery was evaluated for three months at the Apache TAMU#2 well storage tank battery in Snook, Texas. RESULTS The results demonstrated that the main VOC constituents of the headspace of the storage tanks were alkanes along with smaller amounts of aromatics such as benzene, toluene and xylenes. Monitoring results for the biotreatment unit showed an average removal efficiency of 50–60% at an empty bed residence time of 120 s in each tank of the unit. After inoculation of the system with wastewater from a sedimentation basin of a local refinery, the removal efficiency of the system increased dramatically which demonstrated the importance of inoculation to achieve a rapid and successful start‐up in industrial biofilters. The most optimal performance was achieved after 77 days, obtaining the highest elimination capacity of 23 g m‐3 h‐1 at total VOCs loading rate of 39 g m‐3 h‐1. CONCLUSION The operation of the field‐scale sequential BTF‐BF unit for more than three months demonstrated the robustness of this technology and the degradation capabilities of a combination of the suspended and attached growth treatment. The project results demonstrated the potential for even more optimization for improved effectiveness of this novel biological treatment technology for removal of highly variable aromatic VOC concentrations. © 2017 Society of Chemical Industry

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“…Many researchers have studied the use of synthetic surfactants to enhance the RE of biofiltration. Tomadol 25-7 and saponins for n-hexane, 33,34 Tween 20 for toluene, 35 and Triton X-100 for styrene 36 were used for improving degradation in the fungi biofilter. However, the authors believe that the use of a biosurfactant such as Surfactin in a biofilter system has not been reported in the literature.…”

mentioning

confidence: 99%

Effectiveness of biosurfactant for the removal of trihalomethanes by biotrickling filter

Mezgebe

Sorial

Sahle‐Demessie

2019

Engineering Reports

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In this study, the biodegradation of a mixture of two trihalomethane (THM) compounds, chloroform (CF) and dichlorobromomethane (DCBM), was evaluated using two laboratory‐scale biotrickling filters (BTFs). The two BTFs, hereby designated as “BTF‐A” and “BTF‐B,” were run parallel and used ethanol as co‐metabolite at different loading rates (LRs), and a lipopeptide‐type biosurfactant that was generated by the gram‐positive bacteria, Surfactin, respectively. The results using BTF‐A showed that adding ethanol at a higher rate of 4.59 g/(m3 h) resulted in removal efficiencies of 85% and 87% for CF and DCBM, respectively. Conversely, for the same LR, the use of Surfactin without ethanol (BTF‐B) showed comparable removal efficiencies of 85% and 80% for CF and DCBM, respectively. The maximum rate constant for CF and DCBM for the BTF‐A was 0.00203 s−1 and 0.0022 s−1, respectively. For the same THMs LR, similar reaction rate constants resulted for the BTF‐B. Further studies were conducted to investigate and understand the microbial diversity within both BTFs. The result indicated that for BTF with co‐metabolite, Fusarium sp. was the most dominant fungi over 98% followed by F. Solani with less than 2%. F. oxysporum and Fusarium sp. were instead the dominant fungi for the BTF with Surfactin. Before introducing the Surfactin into the BTF, the batch experiment was conducted to evaluate the effectiveness of synthetic surfactant as compared to a biosurfactant (Surfactin). In this regard, vials with Surfactin showed better performance than vials with Tomadol 25‐7 (synthetic surfactant).

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Effect of surfactant on styrene removal from waste gas streams in biotrickling filters

Abstract: BACKGROUND: The performance of two biotrickling filters (BTFs) was evaluated for styrene removal from gas streams at the start-up period and at a pseudo-steady-state under various operating conditions.

Cited by 50 publications

References 24 publications

Effect of saponins on n-hexane removal in biotrickling filters

Effect of saponins on n-hexane removal in biotrickling filters

Evaluation of a sequential biotrickling–biofiltration unit for removal of VOCs from the headspace of crude oil storage tanks

Effectiveness of biosurfactant for the removal of trihalomethanes by biotrickling filter

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