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Biosurfactant/Nanoparticle Applications for the Treatment of Pollutants in Soil and...
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Biosurfactant/Nanoparticle Applications for the Treatment of Pollutants in Soil and Water

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Wastewater Treatment and Reuse".

Deadline for manuscript submissions: closed (15 October 2023) | Viewed by 5220

Special Issue Editors

Dr. Hirakendu Basu

E-Mail Website
Guest Editor
Bhabha Atomic Research Centre, Mumbai, Maharashtra, India
Interests: spectrometry; water quality; environmental; analytical chemistry; environmental analysis; drinking water quality; water chemistry; water treatment; heavy metals; environmental remediation
Dr. Sharf Ilahi Siddiqui

E-Mail Website
Guest Editor
Ramjas College, University of Delhi, New Delhi, India
Interests: porous materials; adsorption; kinetic nanomaterials; material characterization; synthesis; catalyst characterization; catalyst synthesis; reaction kinetics; heterogeneous catalysis

Special Issue Information

Dear Colleagues,

The remediation of water and soil is considered to be the reconciliation between the advancement of world civilisation and the demand for a sustainable environment. Many promising materials and technologies have been developed in recent times for the removal of various pollutants from different environmental matrices. The ever-growing interest in modified nanoparticles and biosurfactants is leading to the development of wonderful materials and technologies. They have gained wide attention in different energy and environmental applications, including in the selective uptake of contaminants from major environmental matrices such as soil and water. Biosurfactants are a large number of amphipathic biomolecules and the modification of nanoparticles means tailoring them in terms of shape, size, functionalisation, etc. The advantages of these tailored nanoparticles and biosurfactants not only lie in their high reactivity due to enormous surface areas, but also in their unique properties such as adjustable pore sizes, desired surface structures, multifunctional abilities, and the possibility of loading into different matrices for both batch and column operations.

This Special Issue will focus on the latest developments and trends in: (i) new biosurfactants and tailored nanoparticles for water and soil treatment; (ii) pollutant speciation using biosurfactant/modified nanoparticles; (iii) field studies for the remediation of soil/water using biosurfactants/nanoparticles; and (iv) the application of biosurfactants/modified nanoparticles in sustainable environmental remediation technologies. This would pave the way for the development of state-of-the-art research knowledge on biosurfactants/nanoparticles that can help us to overcome the existing bottlenecks in soil and water remediation.

Dr. Hirakendu Basu
Dr. Sharf Ilahi Siddiqui
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Water is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • biosurfactant
  • tailored nanoparticles
  • soil remediation
  • water treatment
  • sustainable environmental remediation
  • pollutant removal

Published Papers (4 papers)

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Research

0 pages, 3388 KiB  
Article
Scrutinization of Waste Discharge Concentrations in Eyring-Powell Nanofluid Past a Deformable Horizontal Plane Surface
by Samia Elattar, Umair Khan, Aurang Zaib, Anuar Ishak, Wafaa Saleh and Ahmed M. Abed
Water 2023, 15(19), 3419; https://doi.org/10.3390/w15193419 - 28 Sep 2023
Cited by 3 | Viewed by 868
Abstract
Nanomaterials have been the focus of intense study and growth in the modern era across the globe because of their outstanding qualities, which are brought about by their nanoscale size; for instance, increased adsorption and catalysis capabilities plus significant reactivity. Multiple investigations have [...] Read more.
Nanomaterials have been the focus of intense study and growth in the modern era across the globe because of their outstanding qualities, which are brought about by their nanoscale size; for instance, increased adsorption and catalysis capabilities plus significant reactivity. Multiple investigations have verified the fact that nanoparticles may successfully remove a variety of pollutants from water, and, as a result, they have been utilized in the treatment of both water and wastewater. Therefore, the current research intent is to examine the nonlinear heat source/sink influence on the 3D flow of water-based silver nanoparticles incorporated in an Eyring–Powell fluid across a deformable sheet with concentration pollutants. Silver particles have been used intensively to filter water, due to their potent antibacterial properties. The leading equations involving partial differential equations are renewed into the form of ordinary ordinary differential equations through utilizing the appropriate similarity technique. Then, these converted equations are solved by utilizing an efficient solver bvp4c. Visual displays and extensive exploration of the different impacts of the non-dimensional parameters on the concentration, temperature, and velocity profiles are provided. Also, the important engineering variables including skin friction, the rate of heat, and mass transfer are examined. The findings suggest that the mass transfer rate declines due to pollutant parameters. Also, the results suggest that the friction factor is uplifted by about 15% and that the heat transfer rate, as well as the mass transfer rate, declines by about 21%, due to the presence of the nanoparticle volume fraction. We believe that these results may improve the flow rate of nanofluid systems, improve heat transfer, and reduce pollutant dispersal. Full article
(This article belongs to the Special Issue Biosurfactant/Nanoparticle Applications for the Treatment of Pollutants in Soil and Water)
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15 pages, 2384 KiB  
Article
Computational Examination of Heat and Mass Transfer Induced by Ternary Nanofluid Flow across Convergent/Divergent Channels with Pollutant Concentration
by Vinutha K, M Sunitha, J. K. Madhukesh, Umair Khan, Aurang Zaib, El-Sayed M. Sherif, Ahmed M. Hassan and Ioan Pop
Water 2023, 15(16), 2955; https://doi.org/10.3390/w15162955 - 16 Aug 2023
Cited by 4 | Viewed by 1460
Abstract
Studying waste discharge concentration across a convergent/divergent channel is essential in environmental-related applications. Successful environmental administration must understand the behavior and concentration of waste contaminants released into these channels. Analyzing waste discharge concentrations aids in determining the efficacy of treatment techniques and regulatory [...] Read more.
Studying waste discharge concentration across a convergent/divergent channel is essential in environmental-related applications. Successful environmental administration must understand the behavior and concentration of waste contaminants released into these channels. Analyzing waste discharge concentrations aids in determining the efficacy of treatment techniques and regulatory controls in lowering pollutant scales. Because of this, the current analysis examines the ternary-based nanofluid flow across convergent/divergent channels, including non-uniform heat source/sink and concentration pollutants. The study also concentrates on understanding the movement and heat transmission characteristics in ternary-based nano-liquid systems with divergent and convergent channels and maximizing the ternary nanofluid flow’s effectiveness. The equations representing the flow, temperature, and concentrations are transformed into a system of ODEs (ordinary differential equations) and are obtained by proper similarity variables. Further, solutions of ODEs are gathered by using the Runge Kutta Fehlberg 4-5 (RKF-45) method and shooting procedure. The significant dimensionless constraints and their impacts are discussed using plots. The results mainly focus on improving local and external pollutant source variation will enhance the concentration for the divergent channel while declining for the convergent channel. Adding a solid fraction of nanoparticles will escalate the surface drag force. These findings may enhance heat management, lessen pollutant dispersion, and enhance the circulation of nanofluid systems. Full article
(This article belongs to the Special Issue Biosurfactant/Nanoparticle Applications for the Treatment of Pollutants in Soil and Water)
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15 pages, 4375 KiB  
Article
Sequestration of Toxic Metal Ions from Industrial Effluent Using the Novel Chelating Resin Tamarind Triazine Amino Propanoic Acid (TTAPA)
by Kalpa Mandal, May Abdullah Abomuti, Sami A. Al-Harbi, Sarika Tejasvi, Sangeun Park, Madhu Bala Raigar and Seungdae Oh
Water 2023, 15(16), 2924; https://doi.org/10.3390/w15162924 - 14 Aug 2023
Viewed by 1432
Abstract
Due to higher levels of industrial activity, the concentrations of toxic substances in natural water bodies are increasing. One of the most dangerous groups of toxic compounds is heavy metals, with even trace amounts of most heavy metals being harmful to aquatic life. [...] Read more.
Due to higher levels of industrial activity, the concentrations of toxic substances in natural water bodies are increasing. One of the most dangerous groups of toxic compounds is heavy metals, with even trace amounts of most heavy metals being harmful to aquatic life. This is why purifying water has become an urgent priority. In this context, ion-exchange resins have become more widely used in water treatment processes. However, to reduce the costs and improve the sustainability of this strategy, natural resins are favored over synthetic versions. Therefore, in the present study, a natural tamarind-based chelating resin was developed. The tamarind triazine amino propanoic acid (TTAPA) resin was synthesized and characterized using Fourier-transform infrared spectroscopy, thermogravimetry analysis, scanning electron microscopy, elemental analysis, and physicochemical analysis of the moisture content, total ion-exchange capacity, bulk volume, bulk density, and percentage nitrogen content. The biological oxygen demand and chemical oxygen demand of the industrial effluent before and after treatment were also analyzed. The batch analysis was used to determine the distribution coefficient and percentage removal of the metal ions Fe(II), Zn(II), Pb(II), Cu(II), and Cd(II). The removal efficiency of the prepared TTAPA resin was highest for Fe(II), followed by Cu(II), Zn(II), Pb(II), and Cd(II) in order. The chelating ion-exchange resin also had a metal ion recovery of more than 95%, thus demonstrating great promise for the sequestration of heavy metal ions from industrial wastewater. The proposed TTAPA resin is biodegradable, non-toxic, cost-effective, reproducible, and eco-friendly. Full article
(This article belongs to the Special Issue Biosurfactant/Nanoparticle Applications for the Treatment of Pollutants in Soil and Water)
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16 pages, 6962 KiB  
Article
A Model Development for Thermal and Solutal Transport Analysis of Non-Newtonian Nanofluid Flow over a Riga Surface Driven by a Waste Discharge Concentration
by Javali Kotresh Madhukesh, Vinutha Kalleshachar, Chandan Kumar, Umair Khan, Kallur Venkat Nagaraja, Ioannis E. Sarris, El-Sayed M. Sherif, Ahmed M. Hassan and Jasgurpreet Singh Chohan
Water 2023, 15(16), 2879; https://doi.org/10.3390/w15162879 - 9 Aug 2023
Cited by 15 | Viewed by 1185
Abstract
Wastewater discharge plays a vital role in environmental management and various industries. Water pollution control and tracking are critical for conserving water resources and maintaining adherence to environmental standards. Therefore, the present analysis examines the impact of pollutant discharge concentration considering the non-Newtonian [...] Read more.
Wastewater discharge plays a vital role in environmental management and various industries. Water pollution control and tracking are critical for conserving water resources and maintaining adherence to environmental standards. Therefore, the present analysis examines the impact of pollutant discharge concentration considering the non-Newtonian nanoliquids over a permeable Riga surface with thermal radiation. The analysis is made using two distinct kinds of non-Newtonian nanoliquids: second-grade and Walter’s liquid B. The governing equations are made using the applications of boundary layer techniques. Utilizing the suitable similarity variable reduces the formulated governing equations into an ordinary differential set of equations. The solutions will be obtained using an efficient numerical technique and the significance of various dimensionless constraints on their individual profiles will be presented using graphical illustrations. A comparative analysis is reported for second-grade and Walter’s liquid B fluids. The results show that the porous factor declines the velocity profile for both fluids. Radiation and external pollutant source variation constraints will improve thermal and concentration profiles. The rate of thermal distribution improved with the rise in radiation and solid volume factors. Further, essential engineering factors are analyzed. The outcomes of the present study will help in making decisions and putting efficient plans in place to reduce pollution and safeguard the environment. Full article
(This article belongs to the Special Issue Biosurfactant/Nanoparticle Applications for the Treatment of Pollutants in Soil and Water)
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