Adsorption of tetracycline onto goethite in the presence of metal cations and humic substances

Zhao, Yanping; Geng, Jinju; Wang, Xiaorong; Gu, Xueyuan; Gao, Shixiang

doi:10.1016/j.jcis.2011.05.051

Cited by 212 publications

(71 citation statements)

References 29 publications

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“…Among the pharmaceuticals investigated were detected acetylsalicylic acid, acetaminophen, diclofenac and others. The presence of these residues in the environment induces undesirable biological responses in various types of organisms and may be dangerous to human health [8]. Therefore, the development of efficient and economical techniques to remove these pollutants pharmaceuticals in the aqueous medium is very important [9].…”

Section: Introductionmentioning

confidence: 99%

Banana Peel for Acetylsalicylic Acid Retention

Ribeiro¹,

Silva²,

Cunha³

et al. 2016

JEP

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A method for adsorption involving banana peel (BP) was studied to remove the pollutant acetylsalicylic acid (ASA) in aqueous medium. The results show that bioadsorbent has satisfactory maximum adsorption capacity (2.29 mg/g) for removing this analgesic and anti-inflammatory drug in aqueous solution (pH 7.0) using the Langmuir mathematical model. The tested concentrations of this pollutant were higher than the levels commonly found in the aquatic environment. This and other results suggest the BP as an alternative to ASA removal in water contaminated with pharmaceuticals pollutants.

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Section: Introductionmentioning

confidence: 99%

Banana Peel for Acetylsalicylic Acid Retention

Ribeiro¹,

Silva²,

Cunha³

et al. 2016

JEP

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“…-tetracycline surface complex [18]. ·OH radicals, which may improve the decomposition rate of OTC [20].…”

Section: +mentioning

confidence: 99%

Photocatalytic Degradation of Oxytetracycline Using Co-precipitation Method Prepared Fe₂O₃/TiO₂Nanocomposite

Jia¹,

Liu²,

Li³

2016

Journal of Magnetics

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Fe 2 O 3 /TiO 2 nanocomposite were successfully synthesized by co-precipitation method using Fe (NO 3 ) 3 ·9H 2 O and Ti (SO 4 ) 2 as raw materials. Structural and textural features of the mixed oxide samples were characterized by X-ray diffractometer, field emission scanning electron microscopy and energy-dispersive X-ray. The effects of initial concentration of oxytetracycline (OTC), different competitive ions and organics on the photocatalytic degradation rate of OTC by the Fe 2 O 3 /TiO 2 nanocomposite were analyzed under UV and visible light irradiation. The results indicate that the optimized initial concentration of OTC was 50 mg/L to achieve the best photocatalytic efficiency. Cu 2+, NH 4 + , C 3 H 8 O and EDTA in the aqueous suspension were found to suppress the degradation rate of OTC, whereas the effect of NO 3 − and H 2 C 2 O 4 can be ignored.

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“…In aqueous solutions, depending on the pH, three different groups within the molecule may undergo protonation or deprotonation (dimethylammonium, tricarbonylamide and phenolic diketone) (Zhao et al, 2011a). Generally, tetracyclines, behave positive (pH <3.3), neutral (3.3 <pH <7.68) or negative (pH > 7.68) (Zhao et al, 2011b).…”

Section: Properties Of the Tetracyclinesmentioning

confidence: 99%

Tetracycline: production, waste treatment and environmental impact assessment

Borghi

Palma

2014

Braz. J. Pharm. Sci.

141

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The frequent occurrence of pharmaceuticals in the aquatic environment requires an assessment of their environmental impact and their negative effects in humans. Among the drugs with high harmful potential to the environment are the antibiotics that reach the environment not only, as may be expected, through the effluents from chemical and pharmaceutical industries, but mainly through the sewage and livestock; because around 25 to 75% of the ingested drugs are excreted in unchanged form after the passage through the Gastro-Intestinal Tract. Tetracycline has high world consumption, representing a human consumption of about 23 kg/day in Brazil in 2007. At the moment, researches are being made to develop new tetracycline that incorporate heavy metals (Hg, Cd, Re, Pt, Pd) to their structures in order to increase their bactericidal effect. The conventional wastewater treatment plants are not able to degrade complex organic molecules to reduce their toxicity and improve their biodegradability. For this reason new technologies, i.e., the advanced oxidation processes, are being developed to handle this demand. The objectives of this study are to review the literature on the processes of obtaining tetracycline, presenting its waste treatment methods and evaluation of their environmental impact.Uniterms: Tetracyclines/production. Tetracyclines/waste/tratament. Tetracyclines/waste/environmental impact. Environmental contamination. Domestic sewage/treatment. Industrial wastewater/treatment. Advanced oxidation processes/wastewater treatment.A ocorrência frequente de fármacos no meio aquático exige a avaliação do seu impacto ambiental e seus efeitos negativos em seres humanos. Dentre os fármacos com maior potencial de impacto ambiental estão os antibióticos, que chegam ao meio ambiente através dos efluentes de indústrias químico-farmacêuticas e, principalmente, através de esgotos domésticos e criação de animais, visto que 25% a 75% dos fármacos são excretados em forma inalterada após passagem pelo Trato Gastrointestinal. Parcela significativa do consumo mundial dos antibióticos corresponde à classe das tetraciclinas, representando consumo humano de 23 kg/dia no Brasil, em 2007. Atualmente, há pesquisas de novas tetraciclinas que incorporam metais pesados (Hg, Cd, Re, Pt, Pd) às suas estruturas com o intuito de aumentar suas atividades bactericidas. As estações de tratamento de águas residuais convencionais não são capazes de degradar moléculas orgânicas complexas, diminuir a sua toxicidade e melhorar a sua biodegradabilidade. Por esta razão, as novas tecnologias, como, por exemplo, os processos oxidativos avançados, estão sendo desenvolvidos para lidar com esta demanda. Os objetivos deste trabalho são fazer uma revisão da literatura sobre os processos de obtenção de tetraciclinas, apresentar métodos de tratamento de seus resíduos e avaliar o seu impacto ambiental.

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Adsorption of tetracycline onto goethite in the presence of metal cations and humic substances

Cited by 212 publications

References 29 publications

Banana Peel for Acetylsalicylic Acid Retention

Banana Peel for Acetylsalicylic Acid Retention

Photocatalytic Degradation of Oxytetracycline Using Co-precipitation Method Prepared Fe₂O₃/TiO₂Nanocomposite

Tetracycline: production, waste treatment and environmental impact assessment

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Adsorption of tetracycline onto goethite in the presence of metal cations and humic substances

Cited by 212 publications

References 29 publications

Banana Peel for Acetylsalicylic Acid Retention

Banana Peel for Acetylsalicylic Acid Retention

Photocatalytic Degradation of Oxytetracycline Using Co-precipitation Method Prepared Fe2O3/TiO2Nanocomposite

Tetracycline: production, waste treatment and environmental impact assessment

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Product

Resources

About

Photocatalytic Degradation of Oxytetracycline Using Co-precipitation Method Prepared Fe₂O₃/TiO₂Nanocomposite