دورية أكاديمية
Modification of expanded clay carrier for enhancing the immobilization and nitrogen removal capacity of nitrifying and denitrifying bacteria in the aquaculture system.
| العنوان: | Modification of expanded clay carrier for enhancing the immobilization and nitrogen removal capacity of nitrifying and denitrifying bacteria in the aquaculture system. |
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| المؤلفون: | Nguyen TM; Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi 100000, Viet Nam; Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi 100000, Viet Nam. Electronic address: nguyenthiminh_t58@hus.edu.vn., Ha PT; Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi 100000, Viet Nam. Electronic address: thuhp@ims.vast.ac.vn., Le TTH; Vietnam National University of Agriculture, Trau Quy, Gia Lam District, Hanoi 100000, Viet Nam. Electronic address: lethithuhuong@vnua.edu.vn., Phan KS; Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi 100000, Viet Nam. Electronic address: sonpk@ims.vast.ac.vn., Le TNC; Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi 100000, Viet Nam. Electronic address: lenhicong@ibt.ac.vn., Mai TTT; Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi 100000, Viet Nam. Electronic address: trangmt23@gmail.com., Hoang PH; Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi 100000, Viet Nam. Electronic address: hph@ibt.ac.vn. |
| المصدر: | Journal of bioscience and bioengineering [J Biosci Bioeng] 2022 Jul; Vol. 134 (1), pp. 41-47. Date of Electronic Publication: 2022 May 16. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Society for Biotechnology, Japan Country of Publication: Japan NLM ID: 100888800 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1347-4421 (Electronic) Linking ISSN: 13474421 NLM ISO Abbreviation: J Biosci Bioeng Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: 2003-: Osaka, Japan : Society for Biotechnology, Japan Original Publication: Osaka, Japan : Amsterdam, The Netherlands : Society for Bioscience and Bioengineering, Japan ; Distributed outside Japan by Elsevier Science, 1999- |
| مواضيع طبية MeSH: | Bacillus* , Nitrogen*/chemistry, Aerobiosis ; Alginates ; Aquaculture ; Bacteria/genetics ; Clay ; Denitrification ; Nitrates ; Nitrification ; Nitrites/chemistry ; Wastewater/microbiology |
| مستخلص: | In aquaculture systems, the treatment of nitrogen pollution has always been a center of attention due to its impact on productiveness. The bioremediation method based on simultaneous nitrification and denitrification was often used to effectively remove ammonium, nitrite, and nitrate compounds. In addition, the attachment and biofilm formation of the nitrogen-converting bacteria on carriers had superior removal efficiency over the suspended bacteria. Thus, this study focused on the fabrication of a porosity floatable expanded clay (EC) carrier that provided the basic structure for the immobilization of the nitrifiers Nitrosomonas sp., Nitrobacter sp., and the denitrifier Bacillus sp. The EC was also coated with alginate and essential nutrient to support the cohesion and growth of bacteria. Especially, the selected Bacillus sp. previously proved was able to reduce nitrite/nitrate in aerobic conditions. The co-immobilization of these three aerobic bacteria on the prepared carrier would simply the treatment process in practical use. Initial results showed that the integration of essential nutrients (N, P, K) on alginate coated EC (EC_Alg_N) increased bacterial density to (57 ± 3) × 10 7 - (430 ± 30) × 10 8 CFU/g, which then led to the enhancement of removal efficiency up to 91.62 ± 0.67% in the medium containing initial nitrogen content of 60 mg-N/L. The nitrogen removal efficacy of bacterial immobilized EC_Alg_N remained at 83.95 ± 0.15% after being reused for 6 cycles. In conclusion, the bacterial immobilized EC_Alg_N could be a potential material for nitrogen polluted wastewater treatment in aquaculture systems. (Copyright © 2022 The Society for Biotechnology, Japan. Published by Elsevier B.V. All rights reserved.) |
| فهرسة مساهمة: | Keywords: Bacterial immobilization; Modified expanded clay; Nano-nutrient; Nitrogen removal efficiency; Recyclable carrier |
| المشرفين على المادة: | 0 (Alginates) 0 (Nitrates) 0 (Nitrites) 0 (Waste Water) N762921K75 (Nitrogen) T1FAD4SS2M (Clay) |
| تواريخ الأحداث: | Date Created: 20220519 Date Completed: 20220621 Latest Revision: 20221207 |
| رمز التحديث: | 20231215 |
| DOI: | 10.1016/j.jbiosc.2022.04.006 |
| PMID: | 35589487 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1347-4421 |
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| DOI: | 10.1016/j.jbiosc.2022.04.006 |