Article
Engineering, Environmental
Sajjad Adhami, Ahmad Jamshidi-Zanjani, Ahmad Khodadadi Darban
Summary: By enhancing the EK method with Fenton technique and using copper and iron electrodes, this study successfully removed TPH from drilling waste, achieving a removal rate of up to 77%. The use of iron electrodes also helped improve the removal efficiency, with a removal rate of 69.6%. These results indicate that the EK-Fenton method combined with copper electrodes is effective in removing TPH from drilling waste.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Engineering, Marine
Mohamed-Tahar Ammami, Ahmed Benamar, Florence Portet-Koltalo
Summary: The effect of two environmentally friendly chelating agents, ethylenediaminedisuccinic acid (EDDS) and citric acid (CA), on the electrokinetic remediation (EKR) efficiency and metal mobilities were investigated. The results showed that CA was more suitable for enhancing the removal of Cr, Cu, and Pb, while EDDS provided efficiency to improve the Cd extraction percentage. Both CA and EDDS had comparable improvement impacts on Zn EKR. Applying a periodic voltage gradient with a low concentration of chelating agents led to a promising result compared to previous studies with continuous voltage.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Engineering, Environmental
P. Crocetti, J. Gonzalez-Camejo, K. Li, A. Foglia, A. L. Eusebi, F. Fatone
Summary: Dredging is crucial for maintaining proper water depths in ports and bays, but the resulting sediments often contain high levels of toxic metals and pollutants. Conventional linear sediment management methods are unsustainable, and more efficient circular approaches are needed. However, the development of sediment-based by-products is still limited, and technical and socio-political barriers need to be overcome to implement circular economy in the dredged sediment sector.
Article
Biotechnology & Applied Microbiology
Anish Saini, Dawit Nega Bekele, Sreenivasulu Chadalavada, Cheng Fang, Ravi Naidu
Summary: The study investigated the remediation of TPH in contaminated soil using EK treatment, finding reductions in TPH concentrations even at a depth of 24 cm and more significant remediation near the cathodes.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Engineering, Marine
Zhaowei Wang, Bo Li, Yuanshu Sun, Wenchao Yang
Summary: This study aimed to remove heavy metals from contaminated dredged sediments using natural organic acids. The results showed that citric acid had the best leaching effect and could serve as an effective and environmentally friendly leaching agent.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Natasa Dudukovic, Jelena Beljin, Milos Dubovina, Kristiana Zrnic Tenodi, Livija Cveticanin, Miodrag Zukovic, Dejan Krcmar
Summary: This study investigates the effectiveness of electrokinetic (EK) treatment with a hexagonal electrode configuration in removing Cu from sediment and whether the leached water can be reused. Three experiments were conducted to evaluate the impact of electricity absence during night and variations when solar panels were used. Results show an increase of 2-13% of Cu in the cathode region, with Cu being bound to the electrode surface. The Cu content in other locations was reduced by 50-60% for all treatments. The use of solar panels (e3) is recommended for field application due to its similar efficiencies and absence of acidification effect. The leached water has the potential for agricultural irrigation, aligning with circular economy goals.
CLEAN-SOIL AIR WATER
(2023)
Article
Environmental Sciences
Fabienne Baraud, Lydia Leleyter, Sandra Poree, Tristan Lecomte
Summary: Hundreds of millions of tons of sediments are dredged globally each year. The French SEDIBRIC project aims to replace natural clays with harbor dredged sediments in the production of clay-fired bricks. The study focuses on the fate of potentially toxic elements in the sediments and their availability in the fired bricks.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Meryem Bortali, Mohamed Rabouli, Madiha Yessari, Abdelowahed Hajjaji
Summary: This study evaluated the contamination of marine sediment dredged from Safi harbor in central Morocco. The results showed that the contamination levels of the studied contaminants did not exceed the reference values at the sampling points in the port access channel. Therefore, dredged sediment has the potential to be utilized as an alternative source of construction materials.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Environmental Sciences
Anna Noren, Celia Lointier, Oskar Modin, Ann-Margret Stromvall, Sebastien Rauch, Yvonne Andersson-Skold, Karin Karlfeldt Fedje
Summary: This study compared Fenton's reagent and electrochemical treatment methods for the remediation of TBT and metal-contaminated sediment. The effectiveness, costs, and applicability of the methods were discussed. Fenton's reagent proved to be more effective in removing TBT, while electrochemical treatment was more suitable for treating larger quantities of contaminated sediment.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
S. Jerez, M. Ventura, R. Molina, F. Martinez, M. I. Pariente, J. A. Melero
Summary: The study explored the feasibility of using a Fenton-type process for the pretreatment of oily refinery sludge, finding that adjusting temperature and hydrogen peroxide concentration can effectively decrease TPHs content and increase organic carbon concentration in the liquid phase. The treated aqueous phase showed increased biodegradability, making it suitable for further biological processing in the refinery scheme.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Grazia Cecchi, Laura Cutroneo, Simone Di Piazza, Marco Capello, Mirca Zotti
Summary: The study conducted mycological characterization of marine and dredged sediments from six Mediterranean ports, identifying 46 fungal species belonging to 20 genera. The research discovered several halotolerant fungal species with biotechnological properties, as well as a potential marine pathogenic fungus.
JOURNAL OF SOILS AND SEDIMENTS
(2021)
Article
Construction & Building Technology
Margaret Houlihan, Gamze Bilgen, Asli Y. Dayioglu, Ahmet H. Aydilek
Summary: The study investigates the potential use of dredged sediments in highway embankments after amending them with recycled concrete aggregate, meeting the minimum unit weight requirements set by the local highway authority. pH tests and column leaching tests were conducted to evaluate metal concentrations, with most remaining below water quality limits. Numerical simulations show that contaminant concentrations in leachate dissipate rapidly in surface waters and groundwater, posing minimal concern.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2021)
Article
Construction & Building Technology
Xianghui Kong, Zhibin Zhang, Yunpeng Liang, Xiaokang Wang, Mengmeng Liu
Summary: A solidification study was conducted to improve the engineering performance of dredged sediment, using reactive MgO combined with desulfurization gypsum (DG) and steel slag (SS). The optimal contents of MgO, DG, and SS in the solidified sediment were found to be 7.62%, 11.31%, and 5.80%, respectively. The encapsulation, cementation, and filling of hydration products of MgO-DG-SS improved the soil microstructure, leading to significant enhancement of the sediment's mechanical properties. Moreover, the MgO-DG-SS effectively immobilized the heavy metals in the sediment through chemical bonding and adsorption of hydration products.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Review
Environmental Sciences
Mouhamadou Amar, Mahfoud Benzerzour, Joelle Kleib, Nor-Edine Abriak
Summary: In the cement industry, there is a growing focus on the preservation of natural resources and the reuse of waste materials like sediments. Specific treatment techniques are required to improve the mechanical and physiochemical properties of sediments for their effective use in various applications.
INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH
(2021)
Article
Engineering, Environmental
Natasa Dudukovic, Natasa Slijepcevic, Dragana Tomasevic Pilipovic, Durda Kerkez, Anita Leovac Macerak, Milos Dubovina, Dejan Krcmar
Summary: In recent years, integrated metal removal processes, particularly electrokinetic (EK) treatment and green nanoparticles, have gained more attention for their effectiveness in reducing pollutant concentrations. This study focused on combining green zero-valent iron (nZVI) with EK to remediate Cd and Zn-contaminated sediment. The results showed that even with reduced availability, the metals were concentrated and stabilized in the middle of the EK cell after all treatments. Comparing the results, OL-nZVI was found to be a more effective nanomaterial, with smaller doses, providing better economic benefits. This study highlights the potential of green nZVI combined with EK treatment for effective metal removal and its impact on future research in this field.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2023)
Article
Chemistry, Physical
Crina Calenciuc, Antia Fdez-Sanroman, Gabriela Lama, Sivasankar Annamalai, Angeles Sanroman, Marta Pazos
Summary: This review presents the current state of using Advanced Oxidation Processes (AOPs) for soil remediation. The techniques are categorized into three types depending on the decontamination process. The review highlights the achievements of these technologies and emphasizes the need for further investigation and development.
Article
Biotechnology & Applied Microbiology
Abdelmageed M. M. Othman, Angeles Sanroman, Diego Moldes
Summary: In this study, it was found that the multi-point covalently immobilized laccase from Myceliophthora thermophila on the modified immobilized carrier (Immobead 150P) showed the best immobilization characteristics, retaining 95% of its initial activity after 10 cycles of operation at pH 3.0 and temperature 70 degrees C. The thermodynamic parameters of thermal inactivation demonstrated the positive impact of immobilization. The immobilized enzyme exhibited enhanced stability in alkaline conditions and the ability to provide hydrophobic properties to wood.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2023)
Article
Electrochemistry
Aida M. Diez, Xiang Lyu, Marta Pazos, M. Angeles Sanroman, Geoff McCool, Oleg I. Lebedev, Yury Kolen'ko, Alexey Serov
Summary: This work introduces a convenient phosphorization protocol to convert commercial bimetallic Ni-Mo and Ni-Re electrocatalysts into their respective phosphides, enabling them to be stable under acidic conditions and suitable for water reduction in acidic electrolyte.
ELECTROCHIMICA ACTA
(2023)
Article
Environmental Sciences
Aida M. Diez, Marta Pazos, M. Angeles Sanroman, Helen Valencia Naranjo, Joachim Mayer, Yury Kolen'ko
Summary: This study successfully synthesized and characterized fluoride-doped-TiO2 and demonstrated its applicability in solid-phase photodegradation of polyethylene films for the first time. After three weeks of UV A radiation using a low consumption LED lamp, the polyethylene films containing only 2% of the photocatalyst experienced nearly 50% weight loss, surpassing previously reported data. The results suggest the potential for future production of self-photodegradable plastics for environmental and wastewater treatment applications.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Chemistry, Physical
Antia Fdez-Sanroman, Barbara Lomba-Fernandez, Marta Pazos, Emilio Rosales, Angeles Sanroman
Summary: Three CuFe-MOFs with different structures were synthesized successfully by varying the ratio of solvents, salts, or temperature. CuFe(BDC-NH2)(D) and CuFe(BDC-NH2)(S) exhibited improved PMS activation for Rhodamine B removal, achieving a removal rate of around 92%. The best degradation system for a mixture of antibiotic and anti-inflammatory drugs was the photo-assisted activation of PMS using CuFe(BDC-NH2)(D) and CuFe(BDC-NH2)(S), resulting in complete degradation within 1 hour. CuFe(BDC-NH2)(R)/PMS showed higher antibacterial activity due to its higher copper content.
Article
Chemistry, Physical
Anton Puga, Emilio Rosales, Marta Pazos, Maria Angeles Sanroman
Summary: The synthesis of an iron catalyst (Fe-DES) was proposed in this work, which was characterized physically and chemically. The Fe-DES was shown to be a multipurpose catalyst that can be applied in various processes for the removal of pharmaceuticals in wastewater.
Article
Biotechnology & Applied Microbiology
Esin Balci, Emilio Rosales, Marta Pazos, Aysun Sofuoglu, Maria Angeles Sanroman
Summary: This study investigated the degradation of dibutyl phthalate (DBP) using esterase and lipase enzymes from different microorganisms, and examined the feasibility of immobilizing the most effective enzyme on a clayey material. The results showed that esterase from Bacillus subtilis had the highest degradation efficiency and immoblization improved thermal and storage stability. Additionally, the immobilized enzyme composite maintained high catalytic activity after 7 continuous cycles.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Review
Food Science & Technology
Silvia Escudero-Curiel, Alba Giraldez, Marta Pazos, Angeles Sanroman
Summary: Agri-food residues and by-products are recognized as valuable products that can be used in other industries, such as environmental remediation. These materials, transformed into biochar and hydrochar through engineering techniques, have substantial potential as versatile adsorbents in wastewater treatment and promising alternatives in various environmental and energy-related applications. This sustainable approach provides cost-effective and satisfactory solutions, addressing environmental concerns and paving the way for a more eco-friendly and resource-efficient future.
Article
Biotechnology & Applied Microbiology
Imane Akkari, Zahra Graba, Marta Pazos, Nacer Bezzi, Fatiha Atmani, Amar Manseri, Mohamed Mehdi Kaci
Summary: Due to the rapid growth of bio-waste, there are various difficulties in disposal and governance. Therefore, recycling and repurposing bio-waste for environmental purposes have gained more attention. In this study, a novel activated hydrochar (AHPP) was synthesized from pomegranate peels using hydrothermal carbonization (HTC) followed by phosphoric acid activation. The characteristics of AHPP were determined using various techniques, and its potential for adsorbing Basic Red 46 (BR46) dye was assessed. The results showed that AHPP can effectively adsorb BR46, and it could be reused multiple times.
BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY
(2023)
Article
Environmental Sciences
Alba Giraldez, Antia Fdez-Sanroman, Daniel Terron, M. Angeles Sanroman, Marta Pazos
Summary: In recent years, the issue of pathogens in the environment has gained widespread concern. New research has been conducted on removing pathogens and persistent pollutants from water. The study evaluated the effectiveness of the nanostructure copper-organic framework, HKUST-1, as a catalyst for eliminating Escherichia coli and generating sulphate radicals through peroxymonosulphate (PMS) activation. The disinfection process was optimized and achieved complete elimination of Escherichia coli growth after 30 minutes using a concentration of 60.5 mg/L HKUST-1 and 0.1 mM PMS. A novel development involving encapsulating HKUST-1 on polyacrylonitrile was proposed to overcome operational limitations and enable continuous treatment in a flow disinfection process.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Anton Puga, Manuela M. Moreira, Marta Pazos, Sonia A. Figueiredo, M. Angeles Sanroman, Cristina Delerue-Matos, Emilio Rosales
Summary: This study investigated the adsorption of a multicomponent mixture of active pharmaceutical compounds using a biochar fixed-bed column. The research found that eucalyptus biochar was the most effective option for removing the pollutants. The study also revealed the adsorption mechanism and its correlation with the chosen biochars. Additionally, the multicomponent system showed synergistic behavior for one compound and antagonist behavior for the other two.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
