Current Trends in the Application of Nanomaterials for the Removal of Emerging Micropollutants and Pathogens from Water

Kokkinos, Petros; Mantzavinos, Dionissios; Venieri, Danae

doi:10.3390/molecules25092016

Cited by 87 publications

(43 citation statements)

References 174 publications

(271 reference statements)

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Section: Chemicalsmentioning

confidence: 99%

“…Its mechanical strength and high adsorption capacity allows GO to form hybrid nanocomposites with various materials. Importantly this nanomaterial is characterized by simple manufacturing and low production cost [9,10]. Our previous research involving carbon materials was related to the adsorption properties of graphite and activated carbon particles focusing on sewage and water treatment technological processes [11].…”

Section: Introductionmentioning

confidence: 99%

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Carbon-Based Nanomaterials as Promising Material for Wastewater Treatment Processes

Piaskowski¹,

Zarzycki²

2020

IJERPH

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In the latest literature search, the technology based on graphite oxide (GO) nanomaterials exhibits a great potential in many aspects of wastewater treatment involving adsorption, photocatalysis, disinfection and membrane process. In this study experimental data involving the carbon element in different forms such as active carbon (AC), graphite and graphene oxide (GO) applied as the active reagents in wastewater treatment are summarized and discussed. The first step was to characterize the aforementioned carbon materials and nanoparticles using various complementary techniques. These include optical microscopy, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), Raman spectrophotometry and zeta potential measurements. The second issue was to design the relatively simple experiment enabling us to observe the physicochemical and biological effects of carbon nanoparticles in the presence of sewage water and/or active sludge. Obtained experimental data have been inspected using univariate and multivariate (principal component analysis, PCA) approaches confirming the complex interaction of GO nanoparticles with microorganisms that are present in activated sludge. This experiment enabled the collection of an initial data set to design different large scale investigations focusing on active nanoparticles affecting wastewater purification. PCA calculations clearly revealed that GO strongly affects the wastewater technological processes investigated. It is hoped that the described results will allow the design of smart environmental protection systems in the future.

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Section: Chemicalsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Carbon-Based Nanomaterials as Promising Material for Wastewater Treatment Processes

Piaskowski¹,

Zarzycki²

2020

IJERPH

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“…Photocatalytic membrane reactors (PMR) are recognized to improve separation in general. Nonetheless, they are known to also remove CEC and other harmful substances from water that are otherwise present in the permeate [ 180 , 181 ]. Photocatalysts in PMR are either immobilized on membranes or suspended in the feed solution [ 182 , 183 ].…”

Section: Antifouling Nanosheet Membranesmentioning

confidence: 99%

2D Nanocomposite Membranes: Water Purification and Fouling Mitigation

et al. 2020

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In this study, the characteristics of different types of nanosheet membranes were reviewed in order to determine which possessed the optimum propensity for antifouling during water purification. Despite the tremendous amount of attention that nanosheets have received in recent years, their use to render membranes that are resistant to fouling has seldom been investigated. This work is the first to summarize the abilities of nanosheet membranes to alleviate the effect of organic and inorganic foulants during water treatment. In contrast to other publications, single nanosheets, or in combination with other nanomaterials, were considered to be nanostructures. Herein, a broad range of materials beyond graphene-based nanomaterials is discussed. The types of nanohybrid membranes considered in the present work include conventional mixed matrix membranes, stacked membranes, and thin-film nanocomposite membranes. These membranes combine the benefits of both inorganic and organic materials, and their respective drawbacks are addressed herein. The antifouling strategies of nanohybrid membranes were divided into passive and active categories. Nanosheets were employed in order to induce fouling resistance via increased hydrophilicity and photocatalysis. The antifouling properties that are displayed by two-dimensional (2D) nanocomposite membranes also are examined.

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“…Pharmaceuticals and personal care products (PPCPs) constitute an important class of emerging micropollutants. Tons of PPCPs are annually produced, consumed and finally discharged into the environment [ 6 ]. Therefore, some of the most persistent PPCPs, namely, carbamazepine (CBZ), sulfamethazine (SMT) and tramadol (TRA), were investigated in the present study.…”

Section: Introductionmentioning

confidence: 99%

Removal of Pharmaceutical Micropollutants with Integrated Biochar and Marine Microalgae

et al. 2020

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Using microalgae to remove pharmaceuticals and personal care products (PPCPs) micropollutants (MPs) have attracted considerable interest. However, high concentrations of persistent PPCPs can reduce the performance of microalgae in remediating PPCPs. Three persistent PPCPs, namely, carbamazepine (CBZ), sulfamethazine (SMT) and tramadol (TRA), were treated with a combination of Chaetoceros muelleri and biochar in a photobioreactor during this study. Two reactors were run. The first reactor comprised Chaetoceros muelleri, as the control, and the second reactor comprised Chaetoceros muelleri and biochar. The second reactor showed a better performance in removing PPCPs. Through the response surface methodology, 68.9% (0.330 mg L−1) of CBZ, 64.8% (0.311 mg L−1) of SMT and 69.3% (0.332 mg L−1) of TRA were removed at the initial concentrations of MPs (0.48 mg L−1) and contact time of 8.1 days. An artificial neural network was used in optimising elimination efficiency for each MP. The rational mean squared errors and high R2 values showed that the removal of PPCPs was optimised. Moreover, the effects of PPCPs concentration (0–100 mg L−1) on Chaetoceros muelleri were studied. Low PPCP concentrations (<40 mg L−1) increased the amounts of chlorophyll and proteins in the microalgae. However, cell viability, chlorophyll and protein contents dramatically decreased with increasing PPCPs concentrations (>40 mg L−1).

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Current Trends in the Application of Nanomaterials for the Removal of Emerging Micropollutants and Pathogens from Water

Cited by 87 publications

References 174 publications

Carbon-Based Nanomaterials as Promising Material for Wastewater Treatment Processes

Carbon-Based Nanomaterials as Promising Material for Wastewater Treatment Processes

2D Nanocomposite Membranes: Water Purification and Fouling Mitigation

Removal of Pharmaceutical Micropollutants with Integrated Biochar and Marine Microalgae

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