U.S. flag

An official website of the United States government

PubAg

Main content area

You searched for: Subject "sulfamethoxazole" Remove constraint Subject: "sulfamethoxazole"
Start Over

Search

2,067  Search Results

« Previous | 1 - 20 of 2,067 |
Number of results to display per page

Search Results

1. Nitrogen doping sludge-derived biochar to activate peroxymonosulfate for degradation of sulfamethoxazole: Modulation of degradation mechanism by calcination temperature

Author:
Wang, Shizong; Wang, Jianlong
Source:
Journal of hazardous materials 2021 v.418 pp. 126309
ISSN:
0304-3894
Subject:
sulfamethoxazole,   etc   ; biochar; catalytic activity; contact angle; nitrogen; temperature;     Show all 6 Subjects
Abstract:
... The surface property of biochar can be modulated through nitrogen doping and calcination temperature. In this study, nitrogen-doped sludge-derived biochar (NSDB) was prepared and applied to activate peroxymonosulfate (PMS) for sulfamethoxazole (SMX) degradation, focusing on the effect of calcination temperature on the degradation mechanism. The results showed that the contribution of free radicals ...
DOI:
10.1016/j.jhazmat.2021.126309

2. Anaerobic biodegradation of four sulfanilamide antibiotics: Kinetics, pathways and microbiological studies

Author:
Wang, Shaona; Yuan, Rongfang; Chen, Huilun; Wang, Fei; Zhou, Beihai
Source:
Journal of hazardous materials 2021 v.416 pp. 125840
ISSN:
0304-3894
Subject:
sulfamethoxazole,   etc   ; Bacteroidetes; Firmicutes; Proteobacteria; biodegradation; sulfanilamide; sulfaquinoxaline; sulfathiazole; thiazoles;     Show all 9 Subjects
Abstract:
... Large amounts of sulfanilamide antibiotics (SAs) have been excreted into the manure. In this study, the anaerobic biodegradation of four kinds of SAs including sulfaquinoxaline (SQX), sulfamethoxazole (SMX), sulfamethoxine (SMD) and sulfathiazole (STZ) was investigated. The degradation rates of SQX and STZ decreased with the increase of the concentrations of other organics, but those of SMX and SM ...
DOI:
10.1016/j.jhazmat.2021.125840

3. Degradation of sulfamethoxazole by ozonation combined with ionizing radiation

Author:
Chen, Hai; Wang, Jianlong
Source:
Journal of hazardous materials 2021 v.407 pp. 124377
ISSN:
0304-3894
Subject:
sulfamethoxazole,   etc   ; absorbed dose; mass spectrometry; mineralization; ozonation; sulfamethazine; sulfanilamide; wastewater;     Show all 8 Subjects
Abstract:
... In this study, the degradation and mineralization of sulfamethoxazole (SMX) by ozonation and ionizing radiation were investigated respectively, and the performance of the combined process of ozonation and ionizing radiation was evaluated. Results showed that complete degradation of SMX could be obtained by ozonation in 12 min or by ionizing radiation with the absorbed dose of 1.5 kGy. However, the ...
DOI:
10.1016/j.jhazmat.2020.124377

4. Effects of biochar on biodegradation of sulfamethoxazole and chloramphenicol by Pseudomonas stutzeri and Shewanella putrefaciens: Microbial growth, fatty acids, and the expression quantity of genes

Author:
Yang, Fang; Jian, Hongxian; Wang, Cuiping; Wang, Yu; Li, Erhu; Sun, Hongwen
Source:
Journal of hazardous materials 2021 v.406 pp. 124311
ISSN:
0304-3894
Subject:
sulfamethoxazole,   etc   ; Pseudomonas stutzeri; Shewanella putrefaciens; bacterial growth; biochar; biodegradation; chloramphenicol;     Show all 7 Subjects
Abstract:
... An incubation experiment was conducted to investigate whether different biochar could enhance the biodegradation of sulfamethoxazole (SMX) and chloramphenicol (CAP). During incubation in nutrient medium solution, the degradation efficiencies of SMX by P. stutzeri and S. putrefaciens obtained 61.79% and 68.67% respectively, while CAP was 85.75% and 85.70%. The biodegradation efficiencies of SMX and ...
DOI:
10.1016/j.jhazmat.2020.124311

5. Degradation of micropolluants in flow-through VUV/UV/H2O2 reactors: Effects of H2O2 dosage and reactor internal diameter

Author:
Zhan, Lumeng; Li, Wentao; Liu, Li; Han, Tao; Li, Mengkai; Qiang, Zhimin
Source:
Journal of environmental sciences (China) 2021
ISSN:
1001-0742
Subject:
sulfamethoxazole,   etc   ; atrazine; electric power; energy efficiency; kinetics; models; pollutants; China;     Show all 8 Subjects
Abstract:
... The degradation of atrazine (ATZ), sulfamethoxazole (SMX) and metoprolol (MET) in flow-through VUV/UV/H₂O₂ reactors was investigated with a focus on the effects of H₂O₂ dosage and reactor internal diameter (ID). Results showed that the micropollutants were degraded efficiently in the flow-through VUV/UV/H₂O₂ reactors following the pseudo first-order kinetics (R² > 0.92). However, the steady-state ...
DOI:
10.1016/j.jes.2021.03.012

6. Effects of the antibiotics trimethoprim (TMP) and sulfamethoxazole (SMX) on granulation, microbiology, and performance of aerobic granular sludge systems

Author:
Mendes Barros, Antônio Ricardo; Argenta, Thaís Salvador; de Amorim de Carvalho, Clara; da Silva Oliveira, Francisca; Milen Firmino, Paulo Igor; Bezerra dos Santos, André
Source:
Chemosphere 2021 v.262 pp. 127840
ISSN:
0045-6535
Subject:
sulfamethoxazole,   etc   ; Planctomycetes; Proteobacteria; biomass; biotransformation; microbiology; organic matter; sludge; trimethoprim;     Show all 9 Subjects
Abstract:
... This work assessed the effect of the antibiotics trimethoprim (TMP) and sulfamethoxazole (SMX) on the granulation process, microbiology, and organic matter and nutrient removal of an aerobic granular sludge (AGS) system. In addition, after the maturation stage, the impact of the redox mediator anthraquinone-2,6-disulfonate (AQDS) (25 μM) on the biotransformation of the antibiotics was evaluated. T ...
DOI:
10.1016/j.chemosphere.2020.127840

7. Synergistic adsorption and degradation of sulfamethoxazole from synthetic urine by hickory-sawdust-derived biochar: The critical role of the aromatic structure

Author:
Zhang, Xu; Yao, Hong; Lei, Xiaobo; Lian, Qiyu; Holmes, William E.; Fei, Ling; Zappi, Mark E.; Gang, Daniel Dianchen
Source:
Journal of hazardous materials 2021 v.418 pp. 126366
ISSN:
0304-3894
Subject:
sulfamethoxazole,   etc   ; Fourier transform infrared spectroscopy; adsorption; biochar; carbonates; feedstocks; hydrogen peroxide; porosity; temperature; urine;     Show all 10 Subjects
Abstract:
... This study investigated the adsorptive removal and subsequent degradation of sulfamethoxazole (SMX) from a synthetic urine by biochar (BC). The BCs used in this study were prepared using two different feedstocks with different temperatures. Element analysis and Fourier transform infrared spectroscopy (FTIR) results suggested that the aromaticity of one of the BCs, 700HSBC was significantly differe ...
DOI:
10.1016/j.jhazmat.2021.126366

8. Phytoextraction of ciprofloxacin and sulfamethoxaxole by cattail and switchgrass

Author:
Adesanya, Theresa; Zvomuya, Francis; Farenhorst, Annemieke
Source:
Chemosphere 2021 v.279 pp. 130534
ISSN:
0045-6535
Subject:
sulfamethoxazole,   etc   ; Panicum virgatum; Typha latifolia; aboveground biomass; biosolids; ciprofloxacin; phytoaccumulation; water pollution;     Show all 8 Subjects
Abstract:
... Cattail (Typha latifolia L.) and switchgrass (Panicum virgatum L.) can effectively remove inorganic contaminants from soils and biosolids, but their role in the attenuation of organic contaminants, such as antimicrobials, is currently poorly understood. Uptake by plants is one of several mechanisms by which plant-assisted attenuation of antimicrobials can be achieved. The objectives of this growth ...
DOI:
10.1016/j.chemosphere.2021.130534

9. Biodegradation of sulfonamide antibiotics through the heterologous expression of laccases from bacteria and investigation of their potential degradation pathways

Author:
Yang, Li-Hua; Qiao, Bin; Xu, Qiu-Man; Liu, Song; Yuan, Ye; Cheng, Jing-Sheng
Source:
Journal of hazardous materials 2021 v.416 pp. 125815
ISSN:
0304-3894
Subject:
sulfamethoxazole,   etc   ; Escherichia coli; biodegradation; cleavage (chemistry); heterologous gene expression; hydroxylation; laccase; oxidation; signal peptide; sulfadiazine; sulfamethazine;     Show all 11 Subjects
Abstract:
... In this study, seven laccase genes from different bacteria were linked with the signal peptides PelB, Lpp or Ompa for heterologous expression in E. coli. The recombinant strains were applied for the removal of sulfadiazine (SDZ), sulfamethazine (SMZ), and sulfamethoxazole (SMX). The results obtained for different signal peptides did not provide insights into the removal mechanism. The removal rati ...
DOI:
10.1016/j.jhazmat.2021.125815

10. Multiple adsorption systems and electron-scale insights into the high efficiency coadsorption of a novel assembled cellulose via experiments and DFT calculations

Author:
Zhang, Tao; Zheng, Liuchun; Yu, Huajian; Ren, Jingjing; Peng, Dan; Zhang, Lijuan; Meng, Peipei
Source:
Journal of hazardous materials 2021 v.416 pp. 125748
ISSN:
0304-3894
Subject:
sulfamethoxazole,   etc   ; adsorption; antibiotics; cellulose; heavy metals; hydrophilicity; pH; pollution; rivers; watersheds;     Show all 10 Subjects
Abstract:
... In view of the characteristics of heavy metal and antibiotic compound pollution in the Pearl River Basin in Guangzhou. More scientifically modified cellulose, named HVUC, is characterized by multiple hydrophilic groups, long chains and large space and displays highly efficient adsorption of both Cd and sulfamethoxazole (SMZ) and good adaptability in a wide pH range and at high ion strength. Furthe ...
DOI:
10.1016/j.jhazmat.2021.125748

11. Treatment of pharmaceutical wastewater by ionizing radiation: Removal of antibiotics, antimicrobial resistance genes and antimicrobial activity

Author:
Chu, Libing; Wang, Jianlong; He, Shijun; Chen, Chuanhong; Wojnárovits, László; Takács, Erzsébet
Source:
Journal of hazardous materials 2021 v.415 pp. 125724
ISSN:
0304-3894
Subject:
sulfamethoxazole,   etc   ; Pseudomonas; absorbed dose; antibiotic resistance; antimicrobial properties; erythromycin; gamma radiation; tetracycline; wastewater;     Show all 9 Subjects
Abstract:
... In present study, the treatment of real pharmaceutical wastewater from an erythromycin (ERY) production factory by gamma irradiation was investigated. Results showed that a variety of antimicrobial resistance genes (ARGs), involving MLSB, tet, bla, multidrug, sul, MGEs and van genes and plentiful 9 bacterial phyla were identified in the raw wastewater. In addition to ERY, sulfamethoxazole (SMX) an ...
DOI:
10.1016/j.jhazmat.2021.125724

12. Ag3PO4 composite nanofiltration membrane and its visible-light photocatalytic properties

Author:
Meng, Xiaorong; Ren, Jing; Chen, Jiazhi; Song, Jinfeng; Zheng, Huiqi; Wang, Lei; Huang, DanXi
Source:
Journal of membrane science 2021 v.631 pp. 119334
ISSN:
0376-7388
Subject:
sulfamethoxazole,   etc   ; absorption; catalysts; ciprofloxacin; contact angle; electric current; electrochemistry; light; nanofiltration; photocatalysis; tannins; zeta potential;     Show all 12 Subjects
Abstract:
... Ag₃PO₄ and AgBr–Ag₃PO₄ were deposited on the surface of nanofiltration membrane (FT) with tannic acid (TA) and toluene-2,4 diisocyanate (TDI) as functional layers by alternate impregnation method to obtain composite NF membranes (FTA and FTAB) with visible catalytic activity. Under optimal conditions, the catalyst loads on the surfaces of FTA and FTAB were uniform, the initial water contact angle ...
DOI:
10.1016/j.memsci.2021.119334

13. Enhanced performance of sulfamethoxazole degradation using Achromobacter sp. JL9 with in-situ generated biogenic manganese oxides

Author:
Liang, Dong Hui; Hu, Yongyou; Cheng, Jianhua; Chen, Yuancai
Source:
Bioresource technology 2021 v.333 pp. 125089
ISSN:
0960-8524
Subject:
sulfamethoxazole,   etc   ; Achromobacter; biodegradation; bioremediation; ecotoxicology; manganese; metabolism; microbial activity; oxidation; sediments; technology; temperature;     Show all 12 Subjects
Abstract:
... Little information is known about the relationships of in-situ generated BioMnOx and sulfamethoxazole (SMX) degradation. In this study, a novel efficient bioremediation technology was presented for simultaneous remove the nitrogen-N, SMX, and Mn(II) from water. Mn(II) can be completely oxidized with a oxidized rate of 0.071 mg/(L·h), the SMX and nitrogen-N removal ratios were 97.43% and 85.61%, re ...
DOI:
10.1016/j.biortech.2021.125089

14. Mechanisms for simultaneous ozonation of sulfamethoxazole and natural organic matters in secondary effluent from sewage treatment plant

Author:
Liu, Xinshu; Su, Xiaoman; Tian, Sijie; Li, Yue; Yuan, Rongfang
Source:
Frontiers of environmental science & engineering 2021 v.15 no.4 pp. 75
ISSN:
2095-2201
Subject:
sulfamethoxazole,   etc   ; hydrolysis; hydroxylation; oxidation; ozonation; ozone; pollutants; sewage treatment; wastewater; water treatment;     Show all 10 Subjects
Abstract:
... Sulfamethoxazole (SMX) is commonly detected in wastewater and cannot be completely decomposed during conventional treatment processes. Ozone (O₃) is often used in water treatment. This study explored the influence of natural organic matters (NOM) in secondary effluent of a sewage treatment plant on the ozonation pathways of SMX. The changes in NOM components during ozonation were also analyzed. SM ...
DOI:
10.1007/s11783-020-1368-0

15. Pharmaceutical removal at low energy consumption using membrane capacitive deionization

Author:
Son, Moon; Jeong, Kwanho; Yoon, Nakyung; Shim, Jaegyu; Park, Sanghun; Park, Jongkwan; Cho, Kyung Hwa
Source:
Chemosphere 2021 v.276 pp. 130133
ISSN:
0045-6535
Subject:
sulfamethoxazole,   etc   ; acetaminophen; adsorption; deionization; electrodes; electrostatic interactions; energy; hydrophobicity; specific energy;     Show all 9 Subjects
Abstract:
... The performance of the membrane capacitive deionization (MCDI) system was evaluated during the removal of three selected pharmaceuticals, neutral acetaminophen (APAP), cationic atenolol (ATN), and anionic sulfamethoxazole (SMX), in batch experiments (feed solution: 2 mM NaCl and 0.01 mM of each pharmaceutical). Upon charging, the cationic ATN showed the highest removal rate of 97.65 ± 1.71%, follo ...
DOI:
10.1016/j.chemosphere.2021.130133

16. Validation of a quantitative image analysis methodology for the assessment of the morphology and structure of aerobic granular sludge in the presence of pharmaceutically active compounds

Author:
Leal, Cristiano; Val del Río, Angeles; Ferreira, Eugénio C.; Mesquita, Daniela; Amaral, António L.
Source:
Environmental technology & innovation 2021 v.23 pp. 101639
ISSN:
2352-1864
Subject:
sulfamethoxazole,   etc   ; biomass; environmental technology; image analysis; process control; standard deviation; toxicity; wastewater treatment;     Show all 8 Subjects
Abstract:
... Aerobic granular sludge is considered a promising technology for biological wastewater treatment, since it is more compact and resistant to shock and toxic loads than activated sludge systems. Furthermore, the monitoring of the aerobic granules structure, size and morphology has been growing in importance, proving to be suitable for operational and process control purposes. In this work, a samplin ...
DOI:
10.1016/j.eti.2021.101639

17. Assessment of an aerobic granular sludge system in the presence of pharmaceutically active compounds by quantitative image analysis and chemometric techniques

Author:
Leal, Cristiano S.; Lopes, Mariana; Val del Río, Angeles; Quintelas, Cristina; Castro, Paula M.L.; Ferreira, Eugénio C.; Amaral, A. Luís; Mesquita, Daniela P.
Source:
Journal of environmental management 2021 v.289 pp. 112474
ISSN:
0301-4797
Subject:
sulfamethoxazole,   etc   ; batch systems; biomass; chemometrics; discriminant analysis; environmental management; image analysis; principal component analysis; sludge; wastewater;     Show all 10 Subjects
Abstract:
... In this study, a sequencing batch reactor (SBR) with aerobic granular sludge (AGS) was operated with synthetic wastewater containing environmental relevant concentrations of 17β-estradiol (E2), 17α-ethinylestradiol (EE2) and sulfamethoxazole (SMX). Despite the presence of the studied PhAC, the granular fraction clearly predominated (TSSgᵣₐₙ/TSS ranging from 0.82 to 0.98) throughout the monitoring ...
DOI:
10.1016/j.jenvman.2021.112474

18. Microbial community dynamic shifts associated with sulfamethoxazole degradation in microbial fuel cells

Author:
Xie, Binghan; Liang, Heng; You, Hong; Deng, Shihai; Yan, Zhongsen; Tang, Xiaobin
Source:
Chemosphere 2021 v.274 pp. 129744
ISSN:
0045-6535
Subject:
sulfamethoxazole,   etc   ; Dechloromonas; Geobacter; Methylophilus; Thauera; anodes; biofilm; electron transfer; microbial communities; microbial fuel cells; selection pressure;     Show all 11 Subjects
Abstract:
... Though sulfamethoxazole (SMX) degradation at the low or medium concentration (SMX< 30 mg/L) has been reported in the microbial fuel cell (MFC), further exploration is still urgently required to investigate how the high concentration of SMX affect the anode biofilm formation. In this study, the degradation mechanism of SMX and the response of microbial community to SMX at different initial concentr ...
DOI:
10.1016/j.chemosphere.2021.129744

19. Practical use of response surface methodology for optimization of veterinary antibiotic removal using UV/H2O2 process

Author:
Jutarvutikul, K.; Sakulthaew, C.; Chokejaroenrat, C.; Pattanateeradetch, A.; Imman, S.; Suriyachai, N.; Satapanajaru, T.; Kreetachat, T.
Source:
Aquacultural engineering 2021 pp. 102174
ISSN:
0144-8609
Subject:
sulfamethoxazole,   etc   ; humic acids; hydroxyl radicals; oxytetracycline; pH; response surface methodology; singlet oxygen; ultraviolet radiation;     Show all 8 Subjects
Abstract:
... Three of the most commonly used veterinary antibiotics—enrofloxacin (ENR), sulfamethoxazole (SMX), and oxytetracycline (OTC)—were chosen as representative antibiotics for UV/H₂O₂ treatments. The objective was to determine the optimization of UV/H₂O₂ to remove antibiotics from aquaculture discharge water using response surface methodology. The degradation of the antibiotics was investigated under v ...
DOI:
10.1016/j.aquaeng.2021.102174

20. Copper in LaMnO3 to promote peroxymonosulfate activation by regulating the reactive oxygen species in sulfamethoxazole degradation

Author:
Gao, Panpan; Tian, Xike; Fu, Wei; Wang, Yanxin; Nie, Yulun; Yang, Chao; Deng, Yang
Source:
Journal of hazardous materials 2021 v.411 pp. 125163
ISSN:
0304-3894
Subject:
sulfamethoxazole,   etc   ; catalytic activity; copper; mineralization; oxygen; texture; water pollution; water treatment;     Show all 8 Subjects
Abstract:
... Perovskites with flexible texture structures and excellent catalytic properties have attracted considerable attention in peroxymonosulfate (PMS) activation for addressing organic contaminants in water. In this study, the role of copper to promote PMS activation performance of LaMnO₃ was investigated. 100% sulfamethoxazole (SMX) degradation and 34% mineralization were achieved over copper doped LaM ...
DOI:
10.1016/j.jhazmat.2021.125163