Influence of wastewater precoagulation on adsorptive filtration of pharmaceutical and personal care products by carbon nanotube membranes

Wang, Yifei; Huang, Haiou; Wei, Xiuming

doi:10.1016/j.cej.2017.09.149

Cited by 61 publications

(20 citation statements)

References 39 publications

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“…The MWCNT was used for the adsorption of PPCPs (acetaminophen, carbendazim, caffeine, and triclosan) from wastewater via pre-coagulation technique (Wang et al, 2018). The wastewater precoagulation effect was evaluated on adsorptive filtration of PPCP by using the MWCNT membrane.…”

Section: Carbon Nanotubesmentioning

confidence: 99%

Toxicity and remediation of pharmaceuticals and pesticides using metal oxides and carbon nanomaterials

et al. 2021

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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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Section: Carbon Nanotubesmentioning

confidence: 99%

Toxicity and remediation of pharmaceuticals and pesticides using metal oxides and carbon nanomaterials

et al. 2021

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“…In the group of TFNC and MTFNC membranes, due to greater deposition of acrylic acid (as also seen in DG analysis), generally pH PZC is lower than the values reported for TFC membranes. This suggests the greater negative charge for this group of membranes; based on the drug pH PZC (5) and filtration medium (6.5), greater electrostatic repulsion, and thus more separation, and less fouling are expected for TFNC and MTFNC membranes compared to TFC. The change in the surface charge of metronidazole versus pH PZC is shown in Figure 11 annex.…”

Section: Surface Hydrophilicity Of Tfc Tfnc and Mtfnc Membranesmentioning

confidence: 99%

Strategies to modify the structure of thin‐film composite membranes for advanced separation of metronidazole antibiotic from wastewater

Zabihi

Homayoonfal

2021

Polymers for Advanced Techs

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In this research, thin-film composite (TFC) membranes were used for separating metronidazole antibiotic from effluents. In order to enhance the metronidazole separation performance, thin-film nanocomposite (TFNC) membranes containing copper sulfide nanoparticles as well as modified thin-film nanocomposite (MFTNC) membranes containing copper sulfide nanoparticles coated with acrylic acid were employed. The spherical morphology of CuS nanoparticles along with the acrylic acid chains coated on their surface was confirmed through TEM, scanning electron microscopy (SEM) and energy dispersive X-Ray spectroscopy (EDS) analysis. The crystalline size of nanoparticles was obtained as 29 nm according to XRD. The effect of nanoparticles on chemical functional groups and membrane elemental analysis was investigated by FTIR and CHNS analysis. The structural comparison of TFC, TFNC, and MTFC membranes indicated that the degree of grafting (DG) of the composite thin-film was 17.2, 27.2, and 46.1%, respectively. The structural modification caused the contact angle of TFC, TFNC, and MTFNC to diminish by 47, 34, and 21 , and their porosity to rise by 37, 67, and 53%, respectively. Improvement of porosity and surface hydrophilicity resulted in flux recovery of 87, 100, and 100% in metronidazole filtration by TFC, TFNC, and MTFNC membranes respectively. AFM analysis reported lower roughness of TFNC and MTFNC compared to TFC roughness, obtained in response to less fouling for TFNC and MTFNC over TFC. The size of pores of TFC, TFNC, and MTFNC membranes was measured as 26.5, 16.8, and 14.5 nm respectively, bringing about metronidazole separations of 86.3%, 87.5%, and 98.3%, respectively.

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“…Authors reported that the removal efficiency increased with increasing numbers of aromatic rings in drug molecules, decrease in oxygen content and increase in total surface area of the nanocomposite. In a recent study, CNTs based membrane integrated with the conventional pre-coagulation technique enhanced the adsorption and filtration efficiency of active pharmaceuticals acetaminophen, triclosan, and carbendazim by 34% [118]. A pre-coagulation facilitated the removal of organic matter present in natural waters, which is known to diminish the adsorption capacity of nano-adsorbents.…”

Section: Carbon Nanotubesmentioning

confidence: 99%

Removal of Pharmaceutical Contaminants in Wastewater Using Nanomaterials: A Comprehensive Review

Chauhan

Sillu

Agnihotri

2019

CDM

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Background: The limitless presence of pharmaceutical contaminants in discharged wastewater has emerged as a threat to aquatic species and humans. Their presence in drinking water has although raised substantial concerns, very little is known about the fate and ecological impacts of these pollutants. As a result, these pollutants are inevitably introduced to our food chain at trace concentrations. Unfortunately, the conventional wastewater treatment techniques are unable to treat pharmaceuticals completely with practical limitations. The focus has now been shifted towards nanotechnology for the successful remediation of these persistent pollutants. Thus, the current review specifically focuses on providing readers brief yet sharp insights into applications of various nanomaterials for the removal of pharmaceutical contaminants. Methods: An exhaustive collection of bibliographic database was done with articles having high impact and citations in relevant research domains. An in-depth analysis of screened papers was done through standard tools. Studies were categorized according to the use of nanoscale materials as nano-adsorbents (graphene, carbon nanotubes), nanophotocatalysts (metal, metal oxide), nano-filtration, and ozonation for promising alternative technologies for the efficient removal of recalcitrant contaminants. Results: A total of 365 research articles were selected. The contemporary advancements in the field of nanomaterials for drinking and wastewater treatment have been thoroughly analyzed along with their future perspectives. Conclusion: The recommendations provided in this article will be useful to adopt novel strategies for on-site removal of the emerging contaminants in pharmaceutical effluents and related industries.

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Influence of wastewater precoagulation on adsorptive filtration of pharmaceutical and personal care products by carbon nanotube membranes

Cited by 61 publications

References 39 publications

Toxicity and remediation of pharmaceuticals and pesticides using metal oxides and carbon nanomaterials

Toxicity and remediation of pharmaceuticals and pesticides using metal oxides and carbon nanomaterials

Strategies to modify the structure of thin‐film composite membranes for advanced separation of metronidazole antibiotic from wastewater

Removal of Pharmaceutical Contaminants in Wastewater Using Nanomaterials: A Comprehensive Review

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