Complexing characteristics between Cu(Ⅱ) ions and dissolved organic matter in combined sewer overflows: Implications for the removal of heavy metals by enhanced coagulation

Liao, Zhenliang; Zhao, Zhichao; Zhu, Jing-cheng; Chen, Hao; Meng, Daizong

doi:10.1016/j.chemosphere.2020.129023

Cited by 37 publications

(6 citation statements)

References 49 publications

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“… [ 37 ] Humic-like component of terrestrial origin Copper(II) Enhanced removal efficiency by intermolecular bridging between the pollutant and humic component of molecular range 100 kDa0.45 μm. [ 38 ] Iron electrode Chromium(IV) Sinusoidal alternating current reduces energy consumption and enhances removal efficiency. 99.73% and the residual Cr(VI) in the effluent was <0.1 mgdm −3 [ 39 ] Chemical precipitation Cu-EDTAdecomplexation Copper Cu ions were precipitated as Cu 2 (OH) 2 CO 3 , CuCO 3 , Cu(OH) 2 , and CuO.…”

Section: Biofiltration Techniques Vs Conventional Techniques In the R...mentioning

confidence: 99%

A review on biofiltration techniques: recent advancements in the removal of volatile organic compounds and heavy metals in the treatment of polluted water

et al. 2022

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Good quality of water determines the healthy life of living beings on this earth. The cleanliness of water was interrupted by the pollutants emerging out of several human activities. Industrialization, urbanization, heavy population, and improper disposal of wastes are found to be the major reasons for the contamination of water. Globally, the inclusion of volatile organic compounds (VOCs) and heavy metals released by manufacturing industries, pharmaceuticals, and petrochemical processes have created environmental issues. The toxic nature of these pollutants has led researchers, scientists, and industries to exhibit concern toward the complete eradication of them. In this scenario, the development of wastewater treatment methodologies at low cost and in an eco-friendly way had gained importance at the international level. Recently, bio-based technologies were considered for environmental remedies. Biofiltration-based works have shown a significant result for the removal of volatile organic compounds and heavy metals in the treatment of wastewater. This was done with several biological sources such as bacteria, fungi, algae, plants, yeasts, etc. The biofiltration technique is cost-effective, simple, biocompatible, sustainable, and eco-friendly compared to conventional techniques. This review article provides deep insight into biofiltration technologies engaged in the removal of volatile organic compounds and heavy metals in the wastewater treatment process.

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Section: Biofiltration Techniques Vs Conventional Techniques In the R...mentioning

confidence: 99%

A review on biofiltration techniques: recent advancements in the removal of volatile organic compounds and heavy metals in the treatment of polluted water

et al. 2022

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“…Toxic effects range from chronic asthma and dermatitis to carcinogenic potentials [3]. Several methods have been developed to remove heavy metals from water, including membrane separation [4], coagulation/flocculation [5], electrodialysis [6], chemical reduction/oxidation [7], ion exchange [8], and adsorption [9]. Adsorption is considered one of the preferred methods for the removal of these toxic metals under low concentration conditions due to its simple operation, low energy consumption, low environmental impact, and treatment to desired concentration levels [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

MXene/chitosan/lignosulfonate (MCL) nanocomposite for simultaneous removal of Co(II), Cr(VI), Cu(II), Ni(II) and Pb(II) heavy metals from wastewater

Othman

Mackey²,

Mahmoud³

2023

2D Mater.

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In this work, a novel Ti3C2Tx MXene/ chitosan/lignosulfonate adsorbent (MCL), was prepared via a facile decoration of Ti3C2Tx MXene sheets with chitosan/lignosulfonate nanospheres as a renewable and biodegradable additive that can improve the biocompatibility and aqueous stability of MXenes. Chitosan/lignosulfonate nanospheres were stabilized on the surface of MXne sheets, endowing them with a variety of surface functionalities, high specific surface area, and antioxidant characteristics. The competitive adsorption of multi-metal systems revealed that MCL had a preferential adsorption affinity toward various heavy metal ions; the MCL removal efficiency for the quinary-metal ions adsorption followed a trend of Pb(II) > Cr(VI) ≈ Cu(II) > Ni(II) ≈ Co(II) in neutral pH conditions. A moderate reduction was observed for Cu(II) and Cr(VI) ions. For all metals, the kinetics data fitted well with the pseudo-second-order model, and the adsorption equilibrium was best described by the Langmuir model. The adsorption mechanism is suggested to be a synergic combination of electrostatic interaction, surface complexation, and ion exchange. The findings of this study provide a new approach for eco-friendly MXene surface modification and give a general pattern of metal pollutants interactions during adsorption.

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“…3D-excitation emission matrix (3D-EEM) uorescence spectroscopy, synchronous uorescence (SF) spectroscopy, and Fourier transform infrared (FTIR) spectroscopy analyses were used to track the structural changes in HA in its interaction process with Pb 2+ . Moreover, two-dimensional correlation spectroscopy (2D-COS) analysis [32][33][34][35][36] was used to provide detailed information on the binding interactions between Pb 2+ and HA under the inuence of PSMPs by enhancing the spectral resolution and integrating complementary information, which solved the problem of spectral peak overlap. This study provides insight into the mechanism of Pb 2+ adsorption in the coexistence of PSMPs and HA.…”

Section: Introductionmentioning

confidence: 99%

Effect of microplastics on the binding properties of Pb(ii) onto dissolved organic matter: insights from fluorescence spectra and FTIR combined with two-dimensional correlation spectroscopy

et al. 2023

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Complexing characteristics between Cu(Ⅱ) ions and dissolved organic matter in combined sewer overflows: Implications for the removal of heavy metals by enhanced coagulation

Cited by 37 publications

References 49 publications

A review on biofiltration techniques: recent advancements in the removal of volatile organic compounds and heavy metals in the treatment of polluted water

A review on biofiltration techniques: recent advancements in the removal of volatile organic compounds and heavy metals in the treatment of polluted water

MXene/chitosan/lignosulfonate (MCL) nanocomposite for simultaneous removal of Co(II), Cr(VI), Cu(II), Ni(II) and Pb(II) heavy metals from wastewater

Effect of microplastics on the binding properties of Pb(ii) onto dissolved organic matter: insights from fluorescence spectra and FTIR combined with two-dimensional correlation spectroscopy

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