Treatment of volatile organic compounds from a typical waste printed circuit board dismantling workshop by a pilot-scale biotrickling filter

Liao, Dongqi; Jian-jun, LI; Sun, Duanfang; Xu, Meiying; An, Taicheng; Sun, Guoping

doi:10.1007/s12257-015-0212-z

Cited by 10 publications

(6 citation statements)

References 25 publications

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“…These phyla were followed by Bacteroidetes (28.02%), Proteobacteria (28.26%) and Proteobacteria (15.77%). Proteobacteria, Actinobacteria , Firmicutes and Bacteroidetes were reported to grow using toluene as the sole carbon and energy source . From Fig.…”

Section: Resultsmentioning

confidence: 98%

“…Proteobacteria, Actinobacteria, Firmicutes and Bacteroidetes were reported to grow using toluene as the sole carbon and energy source. 35,42,43 From Fig. 5(b), it is clear that the first and most abundant bacterial genera were Thauera (18.10%), Alicyclobacillus (10.67%) and Alicyclobacillus (74.98%) in the B-BF, F&B-BF (NH 4 + ) and F&B-BF (NO 3 -) steady-state stage, respectively.…”

Section: Comparison Of Microbial Communities and Their Richness In Thmentioning

confidence: 99%

“…In phase II, NH 4 + was selected as the nitrogen source, and the pH was 7.0. At an EBRT of 45 s and toluene inlet concentrations ranging from 929.8 to 1073.6 mg m -3 , 73.1 ± 0.8% of the toluene was removed, and a maximum elimination capacity (EC max ) of 62.5 g m -3 h -1 was obtained during the steady operation stage (days [30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49]. However, the ΔP/H continuously increased from being negligible to 8.3 cm H 2 O m -1 .…”

Section: Performance Comparisonsmentioning

confidence: 99%

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A comparative study of bacterial and fungal‐bacterial steady‐state stages of a biofilter in gaseous toluene removal: performance and microbial community

Zhai

Shi

Zhu

et al. 2017

J of Chemical Tech & Biotech

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BACKGROUND Traditional biofilters can lack efficiency in removing hydrophobic volatile organic compounds (VOCs) due to their low gas‐to‐liquid phase transfer rates. The aim of this research was to construct a high‐performance biofilter for toluene removal, compare the degradation performance with that of a traditional biofilter and reveal the relationship between the microbial community and operational performance with different operational parameters. RESULTS The results illustrate that compared with conventional biofilters, the removal efficiency (RE) and the maximum elimination capacity (ECmax) of the high‐performance, fungal and bacterial biofilter (F&B‐BF) increased by 19.6% and 18 g toluene m‐3 h‐1, respectively. The bed pressure drop (ΔP/H) decreased by 1.6 cm H2O m‐1 at an empty bed residence time (EBRT) of 45 s at pH 4.0 and using nitrate (NO3‐) as a nitrogen source. CONCLUSION Low pH values could properly inhibit bacterial growth and progressively allow fungi to predominate in the biofilm. The degrading capabilities of fungi and bacteria were coupled to improve the biofilter performance in toluene removal. Using NO3‐ as the nitrogen source could control the biofilms' overgrowth and reduce the ΔP/H value. The experimental data analysis showed that the fungal genus Phialophora and the bacterial genus Alicyclobacillus played key roles in toluene and phenol degradation, respectively. © 2017 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 98%

Section: Comparison Of Microbial Communities and Their Richness In Thmentioning

confidence: 99%

Section: Performance Comparisonsmentioning

confidence: 99%

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A comparative study of bacterial and fungal‐bacterial steady‐state stages of a biofilter in gaseous toluene removal: performance and microbial community

Zhai

Shi

Zhu

et al. 2017

J of Chemical Tech & Biotech

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“…Основными источниками их эмиссии в окружающую природную среду являются предприятия энергетического комплекса, автомобильный транспорт, химическая и нефтеперерабатывающая промышленности, промышленные отходы, утечки, неправильная утилизация и аварии при транспортировке нефти, резервуары для хранения, аэропорты, лакокрасочные производства, и железнодорожные станции. Бензол, толуол, ксилол и стирол так же образуются в процессе демонтажа и сжигания электронных отходов и составляют более 50 мас.% водорастворимой бензиновой фракции [4,5,6,7]. Кроме того, ароматические углеводороды широко используются при производстве пластмасс, смол, пигментов, лаков, красителей, моющих средств, пестицидов и фармацевтических препаратов.…”

Section: Introductionunclassified

Creation of consortia of hydrocarbon-oxidizing microorganisms effectively degrading xylene isomers

ФАЙЗУЛИНА¹,

Aitkeldieva²,

Татаркина³

et al. 2020

EJE

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“…Benzene, toluene, xylene and styrene (collectively referred to as BTXS) are usually generated during dismantling and incinerating process of electronic wastes [ 1 ]. The release of these compounds into ambient air can cause harmful effects on health and environment.…”

Section: Introductionmentioning

confidence: 99%

Removal of benzene, toluene, xylene and styrene by biotrickling filters and identification of their interactions

Liao

Jian-jun

et al. 2018

PLoS ONE

Self Cite

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Biotrickling filters (BTFs) are becoming very potential means to purify waste gases containing multiple VOC components, but the removal of the waste gases by BTF has been a major challenge due to the extremely complicated interactions among the components. Four biotrickling filters packed with polyurethane foam were employed to identify the interactions among four aromatic compounds (benzene, toluene, xylene and styrene). The elimination capacities obtained at 90% of removal efficiency for individual toluene, styrene and xylene were 297.02, 225.27 and 180.75 g/m3h, respectively. No obvious removal for benzene was observed at the inlet loading rates ranging from 20 to 450 g/m3h. The total elimination capacities for binary gases significantly decreased in all biotrickling filters. However, the removal of benzene was enhanced in the presence of other gases. The removal capacities of ternary and quaternary gases were further largely lowered. High-throughput sequencing results revealed that microbial communities changed greatly with the composition of gases, from which we found that: all samples were dominated either by the genus Achromobacter or the Burkholderia. Different gaseous combination enriched or inhibited some microbial species. Group I includes samples of BTFs treating single and binary gases and was dominated by the genus Achromobacter, with little Burkholderia inside. Group II includes the rest of the samples taken from BTFs domesticated with ternary and quaternary gases, and was dominated by the genus Burkholderia, with little Achromobacter detected. These genera were highly associated with the biodegradation of benzene series in BTFs.

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Treatment of volatile organic compounds from a typical waste printed circuit board dismantling workshop by a pilot-scale biotrickling filter

Cited by 10 publications

References 25 publications

A comparative study of bacterial and fungal‐bacterial steady‐state stages of a biofilter in gaseous toluene removal: performance and microbial community

A comparative study of bacterial and fungal‐bacterial steady‐state stages of a biofilter in gaseous toluene removal: performance and microbial community

Creation of consortia of hydrocarbon-oxidizing microorganisms effectively degrading xylene isomers

Removal of benzene, toluene, xylene and styrene by biotrickling filters and identification of their interactions

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