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Rouhollahi AA, Giyahchi M, Dastgheib SMM, Moghimi H. Assessing the efficiency and microbial diversity of H 2S-removing biotrickling filters at various pH conditions. Microb Cell Fact 2024; 23:157. [PMID: 38807121 PMCID: PMC11134876 DOI: 10.1186/s12934-024-02427-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 05/16/2024] [Indexed: 05/30/2024] Open
Abstract
This study aimed to investigate the operation of three parallel biotrickling filters (BTFs) in removing H2S at different pH conditions (haloalkaliphilic, neutrophilic, and acidophilic) and their associated microbial population in the biodesulfurization process. BTF columns were inoculated with enriched inoculum and experiments were performed by gradually reducing Empty Bed Retention Time (EBRT) and increasing inlet concentration in which the maximum removal efficiency and maximum elimination capacity in EBRT 60 s reached their maximum level in haloalkaline condition (91% and 179.5 g S-H2S m-3 h-1). For visualizing the attached microbial biofilms on pall rings, Scanning Electron Microscopy (SEM) was used and microbial community structure analysis by NGS showed that the most abundant phyla in haBTF, nBTF, and aBTF belong to Gammaproteobacteria, Betaproteobacteria, and Acidithiobacillia, respectively. Shannon and Simpson indexes evaluation showed a lower diversity of bacteria in the aBTF reactor than that of nBTF and haBTF and beta analysis indicated a different composition of bacteria in haBTF compared to the other two filters. These results indicated that the proper performance of BTF under haloalkaliphilic conditions is the most effective way for H2S removal from air pollutants of different industries.
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Affiliation(s)
- Abbas Abbas Rouhollahi
- Department of Microbiology, School of Biology, College of Science, University of Tehran, Tehran, Iran
| | - Minoo Giyahchi
- Department of Microbiology, School of Biology, College of Science, University of Tehran, Tehran, Iran
| | | | - Hamid Moghimi
- Department of Microbiology, School of Biology, College of Science, University of Tehran, Tehran, Iran.
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Su Q, Dai D, Liao Y, Han H, Wu J, Ren Z. Synthetic microbial consortia to enhance the biodegradation of compost odor by biotrickling filter. BIORESOURCE TECHNOLOGY 2023; 387:129698. [PMID: 37598805 DOI: 10.1016/j.biortech.2023.129698] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 08/11/2023] [Accepted: 08/17/2023] [Indexed: 08/22/2023]
Abstract
Composting generates odorous gases, including ammonia (NH3), hydrogen sulfide (H2S), and volatile organic compounds (VOCs). The Biological Trickling Filter (BTF) is effective for odor treatment, but it may have limitations with hydrophobic VOCs. In this study, a strain of Bacillus subtilis with ammonia-reducing ability, a strain of Bacillus cereus with desulfurization ability and a strain of Schizophyllum commune with the ability to degrade dimethyl disulfide were isolated and screened. The three strains were combined to create synthetic microbial consortia for enhancing odor treatment in the BTF. Compared to the activated sludge control, the BTF with synthetic microbial consortia removed 92.43% ammonia, 92.75% hydrogen sulfide. Furthermore, it demonstrated a significant improvement in the removal rates of p-methyl mercaptan, methyl sulfide, and dimethyl disulfide. High-throughput sequencing was conducted on the fillers of the synthetic microbial consortia-inoculated BTF to analyze the microbial community composition.
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Affiliation(s)
- Qihang Su
- Key Laboratory of Agriculture Animal Genetics, Breeding and Reproduction of the Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Dunwu Dai
- Key Laboratory of Agriculture Animal Genetics, Breeding and Reproduction of the Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Youjun Liao
- Key Laboratory of Agriculture Animal Genetics, Breeding and Reproduction of the Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Hongbo Han
- Key Laboratory of Agriculture Animal Genetics, Breeding and Reproduction of the Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Jian Wu
- Key Laboratory of Agriculture Animal Genetics, Breeding and Reproduction of the Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Frontiers Science Center for Animal Breeding and Sustainable Production, Wuhan 430070, China.
| | - Zhuqing Ren
- Key Laboratory of Agriculture Animal Genetics, Breeding and Reproduction of the Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Frontiers Science Center for Animal Breeding and Sustainable Production, Wuhan 430070, China; Hubei Hongshan Laboratory, Wuhan 430070, China.
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Hydrogen Sulfide Capture and Removal Technologies: A Comprehensive Review of Recent Developments and Emerging Trends. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121448] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Liu N, Li D, Li K, Wang L, Xu R, Zhang J, Yang B. Enhanced biodegradation of chlorobenzene via combined Fe 3+ and Zn 2+ based on rhamnolipid solubilisation. J Environ Sci (China) 2021; 103:108-118. [PMID: 33743893 DOI: 10.1016/j.jes.2020.10.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/30/2020] [Accepted: 10/05/2020] [Indexed: 06/12/2023]
Abstract
Biotrickling filters (BTFs) for hydrophobic chlorobenzene (CB) purification are limited by mass transfer and biodegradation. The CB mass transfer rate could be improved by 150 mg/L rhamnolipids. This study evaluated the combined use of Fe3+ and Zn2+ to enhance biodegradation in a BTF over 35 day. The effects of these trace elements were analysed under different inlet concentrations (250, 600, 900, and 1200 mg/L) and empty bed residence times (EBRTs; 60, 45, and 32 sec). Batch experiments showed that the promoting effects of Fe3+/Zn2+ on microbial growth and metabolism were highest for 3 mg/L Fe3+ and 2 mg/L Zn2+, followed by 2 mg/L Zn2+, and lowest at 3 mg/L Fe3+. Compared to BTF in the absence of Fe3+ and Zn2+, the average CB elimination capacity and removal efficiency in the presence of Fe3+ and Zn2+ increased from 61.54 to 65.79 g/(m3⋅hr) and from 80.93% to 89.37%, respectively, at an EBRT of 60 sec. The average removal efficiency at EBRTs of 60, 45, and 32 sec increased by 2.89%, 5.63%, and 11.61%, respectively. The chemical composition (proteins (PN), polysaccharides (PS)) and functional groups of the biofilm were analysed at 60, 81, and 95 day. Fe3+ and Zn2+ significantly enhanced PN and PS secretion, which may have promoted CB adsorption and biodegradation. High-throughput sequencing revealed the promoting effect of Fe3+ and Zn2+ on bacterial populations. The combination of Fe3+ and Zn2+ with rhamnolipids was an efficient method for improving CB biodegradation in BTFs.
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Affiliation(s)
- Na Liu
- Engineering Research Center of Mine Ecological Construction, Ministry of Education, China University of Mining and Technology, Xuzhou 221116, China
| | - Dan Li
- Engineering Research Center of Mine Ecological Construction, Ministry of Education, China University of Mining and Technology, Xuzhou 221116, China
| | - Kang Li
- Engineering Research Center of Mine Ecological Construction, Ministry of Education, China University of Mining and Technology, Xuzhou 221116, China
| | - Liping Wang
- Engineering Research Center of Mine Ecological Construction, Ministry of Education, China University of Mining and Technology, Xuzhou 221116, China.
| | - Ruiwei Xu
- College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Jiaming Zhang
- Engineering Research Center of Mine Ecological Construction, Ministry of Education, China University of Mining and Technology, Xuzhou 221116, China
| | - Bairen Yang
- School of Environmental Science and Engineering, Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, Yancheng Institute of Technology, Yancheng 224051, China
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Zhang Y, Oshita K, Takaoka M, Kawasaki Y, Minami D, Inoue G, Tanaka T. Effect of pH on the performance of an acidic biotrickling filter for simultaneous removal of H 2S and siloxane from biogas. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2021; 83:1511-1521. [PMID: 33843739 DOI: 10.2166/wst.2021.083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Acidic biotrickling filters (BTF) can be used for simultaneous removal of hydrogen sulfide (H2S) and siloxane from biogas. In this study, the performance of a BTF under different acidic pH conditions was investigated. The removal profile of H2S showed that 90% of H2S removal was achieved during the first 0.4 m of BTF height with down-flow biogas. Decamethylcyclopentasiloxane (D5) removal decreased from 34.5% to 15.6% when the pH increased from 0.88 to 3.98. Furthermore, the high partition coefficient of D5 obtained in under higher pH condition was attributed to the higher total ionic strength resulting from the addition of sodium hydroxide solution and mineral medium. The linear increase in D5 removal with the mass transfer coefficient (kL) indicated that the acidic recycling liquid accelerated the mass transfer of D5 in the BTF. Therefore, the lower partition coefficient and higher kL under acidic pH conditions lead to the efficient removal of D5. However, the highly acidic pH 0.9 blocked mass transfer of H2S and O2 gases to the recycling liquid. Low sulfur oxidation activity and low Acidithiobacillus sp. content also deteriorated the biodegradation of H2S. Operating the BTF at pH 1.2 was optimal for simultaneously removing H2S and siloxane.
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Affiliation(s)
- Yuyao Zhang
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, C-cluster, Kyotodaigaku-katsura, Nishikyo-ku, Kyoto 615-8540, Japan E-mail:
| | - Kazuyuki Oshita
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, C-cluster, Kyotodaigaku-katsura, Nishikyo-ku, Kyoto 615-8540, Japan E-mail:
| | - Masaki Takaoka
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, C-cluster, Kyotodaigaku-katsura, Nishikyo-ku, Kyoto 615-8540, Japan E-mail:
| | - Yu Kawasaki
- Ebara Jitsugyo Co., Ltd., Ginza, Chuo-ku, Tokyo, Japan
| | | | - Go Inoue
- Ebara Jitsugyo Co., Ltd., Ginza, Chuo-ku, Tokyo, Japan
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Markers for the Comparison of the Performances of Anoxic Biotrickling Filters in Biogas Desulphurisation: A Critical Review. Processes (Basel) 2021. [DOI: 10.3390/pr9030567] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The agriculture and livestock industry generate waste used in anaerobic digestion to produce biogas containing methane (CH4), useful in the generation of electricity and heat. However, although biogas is mainly composed of CH4 (~65%) and CO2 (~34%), among the 1% of other compounds present is hydrogen sulphide (H2S) which deteriorates engines and power generation fuel cells that use biogas, generating a foul smell and contaminating the environment. As a solution to this, anoxic biofiltration, specifically with biotrickling filters (BTFs), stands out in terms of the elimination of H2S as it is cost-effective, efficient, and more environmentally friendly than chemical solutions. Research on the topic is uneven in terms of presenting performance markers, underestimating many microbiological indicators. Research from the last decade was analyzed (2010–2020), demonstrating that only 56% of the reviewed publications did not report microbiological analysis related to sulphur oxidising bacteria (SOB), the most important microbial group in desulphurisation BTFs. This exposes fundamental deficiencies within this type of research and difficulties in comparing performance between research works. In this review, traditional and microbiological performance markers of anoxic biofiltration to remove H2S are described. Additionally, an analysis to assess the efficiency of anoxic BTFs for biogas desulphurisation is proposed in order to have a complete and uniform assessment for research in this field.
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Salehi R, Chaiprapat S. Single-/triple-stage biotrickling filter treating a H 2S-rich biogas stream: Statistical analysis of the effect of empty bed retention time and liquid recirculation velocity. JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION (1995) 2019; 69:1429-1437. [PMID: 31343389 DOI: 10.1080/10962247.2019.1645761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 07/12/2019] [Indexed: 06/10/2023]
Abstract
Biogas containing H2S has limited use in electricity and heat production as H2S can be corrosive to metal equipment. Bio-filtration has proved to be a suitable technology for biogas desulfurization because of economical and environmental benefits over physicochemical techniques. In the present study, a response surface methodology using 32 full factorial design was employed to determine the effects of two operating parameters, namely empty bed retention time (EBRT: 100-180 sec) and liquid recirculation velocity (LRV: 2.4-7.1 m3 m-2 h-1) on H2S removal efficiency (%) in single-stage and triple-stage bio-trickling filters (SBTF and TBTF) treating an H2S-rich biogas. Quadratic model was found to be the best predictive model for H2S removal efficiency. The results indicated that H2S removal efficiency was significantly influenced by the synergistic effect of linear terms of EBRT and LRV with a greater effect associated with EBRT. However, the quadratic term of LRV had an antagonistic effect. The quadratic term of EBRT and cross-product term between EBRT and LRV did not exhibit a significant effect on H2S removal efficiency. The predicted values from the established models showed a close agreement with the experimental data with the coefficient of determination (R2) of 0.99 for H2S removal efficiency in both SBTF and TBTF. Response analysis demonstrated that the performance of TBTF was superior compared to SBTF.Implications: Bio-trickling filter technology has gained a lot of attention for biogas desulfurization because it is economically and environmentally superior over chemical methods. Empty bed retention time (EBRT) and liquid recirculation velocity (LRV) are crucial variables influencing the performance of bio-trickling filters. In this work, the authors established a model that can properly predict H2S removal efficiency in a single/triple bio-trickling filter (SBTF and TBTF) treating H2S-rich biogas with regard to the individual and interaction effects between EBRT and LRV. Analysis with the help of response surface methodology indicated that TBTF was more efficient compared to SBTF for H2S removal.
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Affiliation(s)
- Reza Salehi
- Independent Researcher, Montreal, Quebec, Canada
| | - Sumate Chaiprapat
- Environmental Engineering, Department of Civil Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai Campus, Hat Yai, Thailand
- PSU Energy Systems Research Institute, Research and Development Office, Prince of Songkla University, Songkhla, Thailand
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Tu X, Xu M, Li J, Li E, Feng R, Zhao G, Huang S, Guo J. Enhancement of using combined packing materials on the removal of mixed sulfur compounds in a biotrickling filter and analysis of microbial communities. BMC Biotechnol 2019; 19:52. [PMID: 31345193 PMCID: PMC6659214 DOI: 10.1186/s12896-019-0540-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 07/05/2019] [Indexed: 11/23/2022] Open
Abstract
Background Packing materials is a critical design consideration when employing biological reactor to treat malodorous gases. The acidification of packing bed usually results in a significant drop in the removal efficiency. In the present study, a biotrickling filter (BTF2) packed with plastic balls in the upper layer and with lava rocks in the bottom layer, was proposed to mitigate the acidification. Results Results showed that using combined packing materials efficiently enhanced the removal performance of BTF2 when compared with BTF1, which was packed with sole lava rocks. Removal efficiencies of more than 92.5% on four sulfur compounds were achieved in BTF2. Average pH value in its bottom packing bed was about 4.86, significantly higher than that in BTF1 (2.85). Sulfate and elemental sulfur were observed to accumulate more in BTF1 than in BTF2. Analysis of principal coordinate analysis proved that structure of microbial communities in BTF2 changed less after the shutdown but more when the initial pH value was set at 5.5. Network analysis of significant co-occurrence patterns based on the correlations between microbial taxa revealed that BTF2 harbored more diverse microorganisms involving in the bio-oxidation of sulfur compounds and had more complex interactions between microbial species. Conclusions Results confirmed that using combined packing materials effectively improved conditions for the growth of microorganisms. The robustness of reactor against acidification, adverse temperature and gas supply shutdown was greatly enhanced. These provided a theoretical basis for using mixed packing materials to improve removal performance.
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Affiliation(s)
- Xiang Tu
- Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, People's Republic of China.,State Key Laboratory of Applied Microbiology Southern China, Guangzhou, 510070, People's Republic of China.,Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangzhou, 510070, People's Republic of China
| | - Meiying Xu
- Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, People's Republic of China.,State Key Laboratory of Applied Microbiology Southern China, Guangzhou, 510070, People's Republic of China.,Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangzhou, 510070, People's Republic of China
| | - Jianjun Li
- Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, People's Republic of China. .,State Key Laboratory of Applied Microbiology Southern China, Guangzhou, 510070, People's Republic of China. .,Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangzhou, 510070, People's Republic of China.
| | - Enze Li
- Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, People's Republic of China.,State Key Laboratory of Applied Microbiology Southern China, Guangzhou, 510070, People's Republic of China.,Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangzhou, 510070, People's Republic of China
| | - Rongfang Feng
- Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, People's Republic of China.,State Key Laboratory of Applied Microbiology Southern China, Guangzhou, 510070, People's Republic of China.,Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangzhou, 510070, People's Republic of China
| | - Gang Zhao
- Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, People's Republic of China.,State Key Laboratory of Applied Microbiology Southern China, Guangzhou, 510070, People's Republic of China.,Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangzhou, 510070, People's Republic of China
| | - Shaobin Huang
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, People's Republic of China
| | - Jun Guo
- Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, People's Republic of China.,State Key Laboratory of Applied Microbiology Southern China, Guangzhou, 510070, People's Republic of China.,Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangzhou, 510070, People's Republic of China
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Watsuntorn W, Ruangchainikom C, Rene ER, Lens PNL, Chulalaksananukul W. Comparison of sulphide and nitrate removal from synthetic wastewater by pure and mixed cultures of nitrate-reducing, sulphide-oxidizing bacteria. BIORESOURCE TECHNOLOGY 2019; 272:40-47. [PMID: 30308406 DOI: 10.1016/j.biortech.2018.09.125] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 09/23/2018] [Accepted: 09/25/2018] [Indexed: 06/08/2023]
Abstract
In this study, the activities of hydrogen sulphide (H2S) oxidation and nitrate (N-NO3-) reduction by three pure and mixed strains of nitrate-reducing, sulphide oxidizing bacteria (NR-SOB) were determined. Batch experiments were performed at 35 °C and pH 7.0-8.0 with initial H2S concentrations of 650-900 ppmv and N-NO3- concentrations of ∼120 mg/L. The strains MAL 1HM19, TPN 1HM1 and TPN 3HM1 were capable of removing 100% gas-phase H2S. The co-cultures showed better performance for H2S and N-NO3- removal. The mixed NR-SOB strains showed a higher H2S oxidation rate (143 ± 18 ppmv/h), while the highest N-NO3- removal rate (5.5 ± 0 and 5.1 ± 0.6 N-NO3- mg/L·h) was obtained by a mixture of two NR-SOB strains. The 16S rDNA sequence analysis revealed that all strains belonged to the sub-class Alphaproteobacteria and are closely related to Paracoccus sp. (>99%).
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Affiliation(s)
- Wannapawn Watsuntorn
- Program in Biotechnology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | | | - Eldon R Rene
- UNESCO-IHE Institute for Water Education, P. O. Box 3015, 2601 DA Delft, The Netherlands
| | - Piet N L Lens
- UNESCO-IHE Institute for Water Education, P. O. Box 3015, 2601 DA Delft, The Netherlands
| | - Warawut Chulalaksananukul
- Biofuels by Biocatalysts Research Unit, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand; Department of Botany, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.
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Rybarczyk P, Szulczyński B, Gębicki J, Hupka J. Treatment of malodorous air in biotrickling filters: A review. Biochem Eng J 2019. [DOI: 10.1016/j.bej.2018.10.014] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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The microbial community in a moving bed biotrickling filter operated to remove hydrogen sulfide from gas streams. Syst Appl Microbiol 2018; 41:399-407. [DOI: 10.1016/j.syapm.2018.04.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 03/30/2018] [Accepted: 04/03/2018] [Indexed: 01/21/2023]
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