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Jindakaraked M, Khan E, Kajitvichyanukul P. Biodegradation Capabilities of Paraquat-Degrading Bacteria Immobilized on Nanoceramics. TOXICS 2023; 11:638. [PMID: 37505603 PMCID: PMC10386355 DOI: 10.3390/toxics11070638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/16/2023] [Accepted: 07/18/2023] [Indexed: 07/29/2023]
Abstract
The biodegradation of paraquat was investigated using immobilized microbial cells on nanoceramics fabricated from nanoscale kaolinite. Pseudomonas putida and Bacillus subtilis, which degrade paraquat, were immobilized separately on nanoceramics (respectively called ICnc-P and ICnc-B). The attachment of bacteria to nanoceramics resulted from electrostatic force interactions, hydrogen bonding, and covalent bonding (between the cells and the support materials). The initial 10 mg L-1 concentration of paraquat in water was removed by the adsorption process using nanoceramics at 68% and ceramics at 52%, respectively. The immobilized cells on the nanoceramics were able to remove approximately 92% of the paraquat within 10 h, whereas the free cells could only remove 4%. When the paraquat was removed, the cell-immobilized nanoceramics exhibited a significant decrease in dissolved organic nitrogen (DON). ICnc-B was responsible for 34% of DON biodegradation, while ICnc-P was responsible for 22%. Ammonia was identified as the end product of ammonification resulting from paraquat mineralization.
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Affiliation(s)
- Manee Jindakaraked
- Department of Environmental Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 52000, Thailand
| | - Eakalak Khan
- Civil and Environmental Engineering and Construction Department, University of Nevada, Las Vegas, NV 89154-4015, USA
| | - Puangrat Kajitvichyanukul
- Department of Environmental Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 52000, Thailand
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Jindakaraked M, Khan E, Kajitvichyanukul P. Biodegradation of paraquat by Pseudomonas putida and Bacillus subtilis immobilized on ceramic with supplemented wastewater sludge. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 286:117307. [PMID: 33991735 DOI: 10.1016/j.envpol.2021.117307] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 04/24/2021] [Accepted: 05/01/2021] [Indexed: 06/12/2023]
Abstract
This work aimed to study the performance of paraquat removal by cell-immobilized ceramics. Two strains of paraquat degrading bacteria, Pseudomonas putida and Bacillus subtilis, were separately immobilized on the ceramic with and without wastewater sludge addition. Results showed that the ceramic surface with sludge has more functional groups and a more highly negative charge on the surface than the original ceramic. The ceramic with sludge had 2-3-fold of the immobilized cells higher than that of the control (without sludge) and less leaching of the immobilized cells. The sludge addition at 20% (w/w) to the ceramic provided the highest cell adhesion for both P. putida and B. subtilis. The paraquat removal efficiencies were higher than 98%, while the control ceramic could remove only 77 ± 1.2%. The immobilized cells on ceramic with sludge provided a significant degree of dissolved organic nitrogen reduction (82%) during the paraquat removal. Most organic nitrogen in paraquat was biologically mineralized (ammonified). Findings from this work suggest the superiority of ceramic with sludge in mineralizing organic nitrogen associated with paraquat.
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Affiliation(s)
- Manee Jindakaraked
- Center of Excellence on Environmental Research and Innovation, Faculty of Engineering, Naresuan University, Phitsanulok, 65000, Thailand
| | - Eakalak Khan
- Civil and Environmental Engineering and Construction Department, University of Nevada, Las Vegas, NV, 89154-4015, USA
| | - Puangrat Kajitvichyanukul
- Department of Environmental Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai, 50200, Thailand; Center of Excellence in Materials Science and Technology, Chiang Mai University, Chiang Mai, 50200, Thailand.
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Uematsu Y, Ogata F, Nagai N, Saenjum C, Nakamura T, Kawasaki N. In vitro removal of paraquat and diquat from aqueous media using raw and calcined basil seed. Heliyon 2021; 7:e07644. [PMID: 34381899 PMCID: PMC8339247 DOI: 10.1016/j.heliyon.2021.e07644] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/27/2021] [Accepted: 07/20/2021] [Indexed: 11/17/2022] Open
Abstract
Raw and calcined basil seeds (BS and BS1000, respectively) were evaluated for their ability to remove herbicides such as paraquat and diquat. The physicochemical properties of BS and BS1000 were determined and the effects of contact time and initial concentration on paraquat and diquat adsorption were assessed. After calcination treatment, the number of pores in BS increased, and the specific surface area was increased from 0.265 to 86.902 m2 g-1. The quantity of herbicides adsorbed using BS1000 was greater than that using either BS or medicinal-grade carbon. Additionally, the adsorption quantity increased with the increase in contact time and initial concentration of herbicide. Therefore, BS1000 is a potential resource for the removal of herbicides. Moreover, BS and BS1000 exhibited the capacity for herbicide adsorption in simulated intestinal fluid.
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Affiliation(s)
- Yugo Uematsu
- Faculty of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Fumihiko Ogata
- Faculty of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Noriaki Nagai
- Faculty of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Chalermpong Saenjum
- Faculty of Pharmacy, Chiang Mai University, Suthep Road, Muang District, Chiang Mai, 50200, Thailand
- Cluster of Excellence on Biodiversity-based Economics and Society (B.BES-CMU), Chiang Mai University, Suthep Road, Muang District, Chiang Mai, 50200, Thailand
| | - Takehiro Nakamura
- Faculty of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Naohito Kawasaki
- Faculty of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
- Antiaging Center, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
- Corresponding author.
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Watcharenwong A, Kaeokan A, Rammaroeng R, Upama P, Kajitvichyanukul P. Adsorption of Paraquat Dichloride by Graphitic Carbon Nitride Synthesized from Melamine Scraps. ACTA ACUST UNITED AC 2017. [DOI: 10.1088/1755-1315/78/1/012012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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