Microbial community in a pilot-scale biotrickling filter with cell-immobilized biochar beads and its performance in treating toluene-contaminated waste gases

Shu Hui Liu; Hsin Hui Lin; Chi Yung Lai; Chi Wen Lin; Shih Hsien Chang; Jyh Tyng Yau

doi:10.1016/j.ibiod.2019.104743

Microbial community in a pilot-scale biotrickling filter with cell-immobilized biochar beads and its performance in treating toluene-contaminated waste gases

Shu Hui Liu, Hsin Hui Lin, Chi Yung Lai, Chi Wen Lin, Shih Hsien Chang, Jyh Tyng Yau

Department of Biology

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

Cell-immobilized bamboo-biochar beads (cell-biochar beads) that were made of an environmentally friendly material were used as packing material in biotrickling filters (BTFs). Cell-biochar beads play the double role of an adsorber of pollutants and a carrier for the growth of attached bacteria, increasing the efficiency of pollutant removal by BTFs. A toluene removal rate of over 99% was achieved. The best organic loading rate (OLR) of BTF on toluene was 46.2 g m⁻³ h⁻¹ and its elimination capacity (EC) was 34.9 g m⁻³ h⁻¹ at an exhaust gas flow rate of 0.015 m³ min⁻¹ and an empty bed residence time (EBRT) of 99 s. According to a microbial community analysis, when the cell-biochar beads were immobilized with a targeted pollutant-degrader under various operating conditions, they were dominated by microbes, revealing that the beads had mitigated the inhibition effect of substrate on biodegradation. Therefore, when cell-biochar beads are used as a packing material in a BTF, the exhaust gas can be effectively treated; the impact of the organic load can be effectively buffered and the EC can be improved by scaling up.

Original language	English
Article number	104743
Journal	International Biodeterioration and Biodegradation
Volume	144
DOIs	https://doi.org/10.1016/j.ibiod.2019.104743
Publication status	Published - 2019 Oct

All Science Journal Classification (ASJC) codes

Microbiology
Biomaterials
Waste Management and Disposal

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@article{cb686425d9374eb4bc0c0169a728425b,

title = "Microbial community in a pilot-scale biotrickling filter with cell-immobilized biochar beads and its performance in treating toluene-contaminated waste gases",

abstract = "Cell-immobilized bamboo-biochar beads (cell-biochar beads) that were made of an environmentally friendly material were used as packing material in biotrickling filters (BTFs). Cell-biochar beads play the double role of an adsorber of pollutants and a carrier for the growth of attached bacteria, increasing the efficiency of pollutant removal by BTFs. A toluene removal rate of over 99% was achieved. The best organic loading rate (OLR) of BTF on toluene was 46.2 g m−3 h−1 and its elimination capacity (EC) was 34.9 g m−3 h−1 at an exhaust gas flow rate of 0.015 m3 min−1 and an empty bed residence time (EBRT) of 99 s. According to a microbial community analysis, when the cell-biochar beads were immobilized with a targeted pollutant-degrader under various operating conditions, they were dominated by microbes, revealing that the beads had mitigated the inhibition effect of substrate on biodegradation. Therefore, when cell-biochar beads are used as a packing material in a BTF, the exhaust gas can be effectively treated; the impact of the organic load can be effectively buffered and the EC can be improved by scaling up.",

author = "Liu, {Shu Hui} and Lin, {Hsin Hui} and Lai, {Chi Yung} and Lin, {Chi Wen} and Chang, {Shih Hsien} and Yau, {Jyh Tyng}",

note = "Funding Information: The authors would like to thank the Ministry of Science and Technology (MOST) of Republic of China , Taiwan, for financially supporting this research under Contract No. MOST 2622-E-224-005-CC3 . The authors also wish to thank Mr. Jing-Chen Shih for data collection. ",

year = "2019",

month = oct,

doi = "10.1016/j.ibiod.2019.104743",

language = "English",

volume = "144",

journal = "International Biodeterioration and Biodegradation",

issn = "0964-8305",

publisher = "Elsevier Limited",

}

Microbial community in a pilot-scale biotrickling filter with cell-immobilized biochar beads and its performance in treating toluene-contaminated waste gases. / Liu, Shu Hui; Lin, Hsin Hui; Lai, Chi Yung; Lin, Chi Wen; Chang, Shih Hsien; Yau, Jyh Tyng.

In: International Biodeterioration and Biodegradation, Vol. 144, 104743, 10.2019.

Research output: Contribution to journal › Article › peer-review

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T1 - Microbial community in a pilot-scale biotrickling filter with cell-immobilized biochar beads and its performance in treating toluene-contaminated waste gases

AU - Liu, Shu Hui

AU - Lin, Hsin Hui

AU - Lai, Chi Yung

AU - Lin, Chi Wen

AU - Chang, Shih Hsien

AU - Yau, Jyh Tyng

N1 - Funding Information: The authors would like to thank the Ministry of Science and Technology (MOST) of Republic of China , Taiwan, for financially supporting this research under Contract No. MOST 2622-E-224-005-CC3 . The authors also wish to thank Mr. Jing-Chen Shih for data collection.

PY - 2019/10

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N2 - Cell-immobilized bamboo-biochar beads (cell-biochar beads) that were made of an environmentally friendly material were used as packing material in biotrickling filters (BTFs). Cell-biochar beads play the double role of an adsorber of pollutants and a carrier for the growth of attached bacteria, increasing the efficiency of pollutant removal by BTFs. A toluene removal rate of over 99% was achieved. The best organic loading rate (OLR) of BTF on toluene was 46.2 g m−3 h−1 and its elimination capacity (EC) was 34.9 g m−3 h−1 at an exhaust gas flow rate of 0.015 m3 min−1 and an empty bed residence time (EBRT) of 99 s. According to a microbial community analysis, when the cell-biochar beads were immobilized with a targeted pollutant-degrader under various operating conditions, they were dominated by microbes, revealing that the beads had mitigated the inhibition effect of substrate on biodegradation. Therefore, when cell-biochar beads are used as a packing material in a BTF, the exhaust gas can be effectively treated; the impact of the organic load can be effectively buffered and the EC can be improved by scaling up.

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