Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
4.5
2.7
Journals
Applied Sciences
Special Issues
Determination and Extraction of Heavy Metals from Wastewater and Other...
share announcement

Determination and Extraction of Heavy Metals from Wastewater and Other Complex Matrices, Volume II

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Environmental Sciences".

Deadline for manuscript submissions: closed (30 November 2021) | Viewed by 4355

Special Issue Editors

Dr. Franz Jirsa

E-Mail Website
Guest Editor
Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
Interests: environmental chemistry; heavy metals in the environment; bioaccumulation in aquatic plants and animals; bio indication using fish and other sentinel organisms; ionic liquids for heavy metal removal from natural waters; applications for heavy metal analyses in difficult matrices
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. José A. López-López

E-Mail
Co-Guest Editor
University of Cádiz, Faculty of Marine and Environmental Sciences, Marine Research Institute, Department of Analytical Chemistry, República Saharaui st, 11510 Puerto Real, Spain
Interests: environmental chemistry, heavy metals in the environment, trace metals in marine systems; metal speciation in marine waters; ionic liquids for the extraction of heavy metals; micro-extraction techniques for sample preparation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Heavy metals in complex matrices, such as wastewater and natural waters with high salinity, present several challenges. The analyses of these elements call for intensive sample pretreatment to avoid the interference of matrix components during the analyses, or the need for preconcentration of the analyte. On the other hand, the removal of heavy metals from such matrices calls for the development of task-specific methods and materials that show low interaction with matrix components, such as major ions and organic materials, and a high specificity towards the targeted metals. For this Special Issue, contributions are welcome that address the development of new methods for analyses and/or the removal of heavy metals from wastewater and other complex matrices.

Prof. Dr. Franz Jirsa
Prof. Dr. José A. López-López
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. Applied Sciences 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 2400 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

  • heavy metal analyses
  • wastewater
  • hypersaline water

Published Papers (2 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

18 pages, 16680 KiB  
Article
Batch and Packed Bed Column Study for the Removal of Cr (VI) and Ni (II) Using Agro-Industrial Wastes
by Candelaria Tejada-Tovar, Angel Villabona-Ortíz and Rodrigo Ortega-Toro
Appl. Sci. 2021, 11(19), 9355; https://doi.org/10.3390/app11199355 - 08 Oct 2021
Cited by 4 | Viewed by 1635
Abstract
The objective of this study was to prepare bio adsorbents from agro-industrial wastes from yam starch (YSR) and plantain (PSR) production for its use in the removal of Cr (VI) and Ni (II) in aqueous solution in batch and continuous packed-bed column systems. [...] Read more.
The objective of this study was to prepare bio adsorbents from agro-industrial wastes from yam starch (YSR) and plantain (PSR) production for its use in the removal of Cr (VI) and Ni (II) in aqueous solution in batch and continuous packed-bed column systems. Bromatological analysis showed that the biomaterials are rich in cellulose, lignin, hemicellulose, and SEM micrographs that evidence a mesoporous structure characteristic of materials of lignocellulosic origin. FTIR evidenced functional groups such as hydroxyl, carbonyl, and methyl, possibly involved in the uptake of metal ions. EDS and FTIR analysis after adsorption confirmed that the retention of the metals on the surface of the adsorbent materials was successful. Cr (VI) and Ni (II) removal efficiencies above 80% were achieved using YSR and PSR in batch systems at the different conditions evaluated. The optimum conditions for removing Ni (II) on PSR were a bed height of 11.4 cm and a temperature of 33 °C, while for YSR, they were: 43 °C and 9 cm for temperature and bed height respectively. The variable with the most significant influence on the removal of Cr (VI) in a batch system on the two bio adsorbents was temperature. In contrast, the adsorbent dose and temperature are relevant factors for PSR Ni (II) removal. Therefore, the residues from the preparation of yam and plantain starch have high potential for removing heavy metals from wastewater and are presented as an alternative for their final disposal. Full article
(This article belongs to the Special Issue Determination and Extraction of Heavy Metals from Wastewater and Other Complex Matrices, Volume II)
►▼ Show Figures

Figure 1

14 pages, 3526 KiB  
Article
Biosorption of Pb(II) Using Coffee Pulp as a Sustainable Alternative for Wastewater Treatment
by Dora Luz Gómez-Aguilar, Juan Pablo Rodríguez-Miranda, Deisy Baracaldo-Guzmán, Octavio José Salcedo-Parra and Javier Andrés Esteban-Muñoz
Appl. Sci. 2021, 11(13), 6066; https://doi.org/10.3390/app11136066 - 30 Jun 2021
Cited by 6 | Viewed by 2016
Abstract
The present research shows the results obtained from the biosorption process of Pb, using coffee pulp as a biosorbent in synthetic waters. To do this, the lignin and cellulose content and the percentage of removal of Pb2+ ions was determined; additionally, the [...] Read more.
The present research shows the results obtained from the biosorption process of Pb, using coffee pulp as a biosorbent in synthetic waters. To do this, the lignin and cellulose content and the percentage of removal of Pb2+ ions was determined; additionally, the sorption’s optimal variables, such as the optimum pH, the point of zero charge (pHpzc), the kinetics and the adsorption isotherm, were determined. A comparison was made with other by-products derived from coffee crops. According to the results obtained in this research, the cellulose percentage was 29.12 ± 0.22% and the lignin percentage was 19.25 ± 0.16% in the coffee pulp, the optimum pH was 2.0 units and the kinetic model, which adjusted to the biosorption’s process, was the pseudo-second order of Ho and McKay, presenting an isotherm of Langmuir’s model and pHpzc of 3.95 units. Lastly, the removal of the pollutant was 86.45%, with a capacity of maximum adsorption of 24.10 mg·g−1 obtained with a particle size of 180 µm, time of contact of 105 min and at 100 RPM. Finally, we express that (a) the coffee pulp can be used as a sustainable alternative for the removal of the pollutant mentioned in synthetic and/or industrial wastewater matrices, to meet goals 3.9 and 6.9 of the Sustainable Development Goals of the 2030 agenda, and (b) the novelty of this research is the use of an agricultural waste of easy acquisition as a sorbent, without chemical modification, since it presented a high percentage of efficiency in the removal of Pb2+ ions. In turn, the challenge of this research is implementing this green technology on a pilot, semi-industrial and/or industrial scale in wastewater treatment systems. Full article
(This article belongs to the Special Issue Determination and Extraction of Heavy Metals from Wastewater and Other Complex Matrices, Volume II)
►▼ Show Figures

Graphical abstract

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-2
Back to TopTop