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498 Results Found

  • Review
  • Open Access
11 Citations
8,079 Views
23 Pages

6 March 2023

Slags from the ferrous and nonferrous metallurgical industries have been used to treat toxic contaminants in water and wastewater. Using slag as a recycling or renewable resource rather than a waste product has environmental and economic benefits. Re...

  • Article
  • Open Access
9 Citations
3,049 Views
11 Pages

Assessment of Aspergillus niger Strain’s Suitability for Arsenate-Contaminated Water Treatment and Adsorbent Recycling via Bioextraction in a Laboratory-Scale Experiment

  • Eva Duborská,
  • Kinga Szabó,
  • Marek Bujdoš,
  • Hana Vojtková,
  • Pavol Littera,
  • Edmund Dobročka,
  • Hyunjung Kim and
  • Martin Urík

In this work, the viability of bioaccumulation and bioextraction processes for arsenic removal from contaminated waters, as well as the recycling of arsenate-treated amorphous ferric oxyhydroxide adsorbent (FeOOH) were evaluated using the common soil...

  • Article
  • Open Access
9 Citations
2,138 Views
20 Pages

24 March 2023

The application of lignin-based adsorbents in the efficient removal of phosphate from wastewater has attracted much attention and been intensively studied in recent years. However, most currently reported lignin-based adsorbents are difficult to reco...

  • Article
  • Open Access
11 Citations
2,348 Views
13 Pages

Recyclable Magnetic Iron Immobilized onto Chitosan with Bridging Cu Ion for the Enhanced Adsorption of Methyl Orange

  • Daoguang Teng,
  • Peng Jin,
  • Wenhuan Guo,
  • Jiang Liu,
  • Wei Wang,
  • Peng Li,
  • Yijun Cao,
  • Ling Zhang and
  • Ying Zhang

Chitosan (CS) is a natural and low-cost adsorbent for capturing metal ions and organic compounds. However, the high solubility of CS in acidic solution would make it difficult to recycle the adsorbent from the liquid phase. In this study, the CS/Fe3O...

  • Article
  • Open Access
2 Citations
1,689 Views
16 Pages

23 September 2023

The complete removal of low concentration organic pollutants from wastewater to obtain clean water has always been a highly desired but challenging issue. In response to this, we proposed a new strategy to fabricate a carbon-in-silicate nanohybrid co...

  • Feature Paper
  • Article
  • Open Access
5 Citations
2,605 Views
16 Pages

Evaluation of Dithiocarbamate-Modified Silica for Cisplatin Removal from Water

  • Rachel Lombana Fraguela,
  • José Alejandro Ricardo Garcia,
  • Margarita Edelia Villanueva Tagle,
  • Mario Simeón Pomares Alfonso,
  • Maria Cracchiolo,
  • Anđela Kovačević,
  • Marilena Tolazzi,
  • Andrea Melchior and
  • Martina Sanadar

4 February 2023

Despite the globally increasing use of platinum-based cytostatic drugs in the treatment of several types of cancer, only limited attention has been paid to developing a treatment for contaminated liquid samples originating from hospitals, laboratorie...

  • Article
  • Open Access
26 Citations
6,332 Views
16 Pages

Carbon/Attapulgite Composites as Recycled Palm Oil-Decoloring and Dye Adsorbents

  • Guangyan Tian,
  • Wenbo Wang,
  • Yongfeng Zhu,
  • Li Zong,
  • Yuru Kang and
  • Aiqin Wang

6 January 2018

Activated clay minerals have been widely used in the edible oil refining industry for decolorization of crude oil by adsorption, and so far many methods have been used to improve their decolorization efficiency. Herein, we successfully prepared a ser...

  • Article
  • Open Access
8 Citations
2,754 Views
24 Pages

Recycling of Waste Toner Powder as Adsorbent to Remove Aqueous Heavy Metals

  • Begoña Fernández,
  • Julia Ayala,
  • Elena del Valle,
  • David Martínez-Blanco,
  • Ana María Castañón and
  • Juan M. Menéndez-Aguado

10 June 2022

The removal of Cd2+, Zn2+ and Ni2+ from metal solutions onto waste toner power (WTP) was investigated. The influence of parameters such as pH, contact time, initial metal concentration and adsorbent dosage was studied in batch adsorption experiments....

  • Article
  • Open Access
3 Citations
2,479 Views
16 Pages

Recyclable Carbon-Based Hybrid Adsorbents Functionalized with Alumina Nanoparticles for Water Remediation

  • Mohamed A. Habila,
  • Zeid A. ALOthman,
  • Hussam Musaad Hakami,
  • Monerah R. ALOthman and
  • Mohamed Sheikh

1 April 2023

Developing and improving adsorbent materials for wastewater treatment have become crucial for achieving recyclable water and keeping the environment safe. Carbon materials are modified with alumina (Al2O3) using various doping ratios and a solvotherm...

  • Article
  • Open Access
9 Citations
3,524 Views
13 Pages

In the present study, we report the development of a cellulose-based affinity adsorbent and its application for the purification of proteases from fish by-products. The affinity adsorbent was synthesized using cellulose microfibers as the matrix, iso...

  • Article
  • Open Access
3 Citations
1,664 Views
15 Pages

26 November 2022

In this work, a composite adsorbent coating constituted by high SAPO 34 content and a sulfonated recycled poly (ether ether ketone) was investigated for adsorption heat pump technology. Specifically, the effect of polymer recycling on mechanical and...

  • Article
  • Open Access
15 Citations
3,837 Views
16 Pages

27 July 2022

It is crucial to develop an effective and easily recoverable phosphate absorbent for the control of eutrophication problems in polluted rivers. In this study, a stable particulate adsorbent with a diameter of 5 mm synthesized from lanthanum, activate...

  • Feature Paper
  • Article
  • Open Access
3 Citations
2,386 Views
14 Pages

Recycling PVC Waste into CO2 Adsorbents: Optimizing Pyrolysis Valorization with Neuro-Fuzzy Models

  • Emilia A. Jiménez-García,
  • Salvador Pérez-Huertas,
  • Antonio Pérez,
  • Mónica Calero and
  • Gabriel Blázquez

20 February 2024

Nowadays, the environmental challenges associated with plastics are becoming increasingly prominent, making the exploitation of alternatives to landfill disposal a pressing concern. Particularly, polyvinyl chloride (PVC), characterized by its high ch...

  • Review
  • Open Access
124 Citations
12,785 Views
21 Pages

Current Applications of Recycled Aggregates from Construction and Demolition: A Review

  • Glaydson Simões dos Reis,
  • Marco Quattrone,
  • Weslei Monteiro Ambrós,
  • Bogdan Grigore Cazacliu and
  • Carlos Hoffmann Sampaio

30 March 2021

A literature review comprising 163 publications published over a period of 26 years from 1992 to 2018 is presented in this paper. This review discusses the generation and recycling of construction and demolition waste (CDW) as well as its main uses a...

  • Article
  • Open Access
54 Citations
4,994 Views
21 Pages

Chitosan Film as Eco-Friendly and Recyclable Bio-Adsorbent to Remove/Recover Diclofenac, Ketoprofen, and Their Mixture from Wastewater

  • Vito Rizzi,
  • Fabio Romanazzi,
  • Jennifer Gubitosa,
  • Paola Fini,
  • Roberto Romita,
  • Angela Agostiano,
  • Andrea Petrella and
  • Pinalysa Cosma

5 October 2019

This paper reported the first example on the use of chitosan films, without further modification, to remove and recover, through bio-sorption processes, the emerging pollutant Diclofenac from water. The latter was adopted as a model, among non-steroi...

  • Article
  • Open Access
703 Views
17 Pages

23 May 2025

To address the disposal challenges of waste SCR catalysts and the urgent need for sustainable solutions in heavy metal pollution control, this study proposes a green resource utilization strategy based on the sub-molten salt method to convert waste S...

  • Article
  • Open Access
21 Citations
6,908 Views
18 Pages

25 May 2017

A mathematical model of a continuous moving-bed temperature-swing adsorption (MBTSA) process for post-combustion CO2 capture in a coal-fired power plant context has been developed. Process simulations have been done using single component isotherms a...

  • Article
  • Open Access
13 Citations
4,839 Views
15 Pages

Dye Adsorbent Materials Based on Porous Ceramics from Glass Fiber-Reinforced Plastic and Clay

  • Kentaro Yasui,
  • Koya Sasaki,
  • Naoya Ikeda and
  • Hiroyuki Kinoshita

16 April 2019

We investigated the use of waste glass fiber-reinforced plastic (GFRP) to remove dye from industrial wastewater. The dye adsorbent material, based on GFRP/clay ceramics, was produced by mixing crushed GFRP with clay and firing the resulting mixture....

  • Article
  • Open Access
21 Citations
3,544 Views
13 Pages

15 June 2020

Agricultural wastewater poses serious risks to the environment due to how it is injudiciously used and managed. We investigated the use of pomegranate peel powder (PPP) to adsorb ammonium ions from milking parlor wastewater, which is applied as a nit...

  • Article
  • Open Access
9 Citations
3,893 Views
20 Pages

Iron-Loaded Pomegranate Peel as a Bio-Adsorbent for Phosphate Removal

  • Naoufal Bellahsen,
  • Balázs Kakuk,
  • Sándor Beszédes,
  • Zoltán Bagi,
  • Nóra Halyag,
  • Tamás Gyulavári,
  • Szabolcs Kertész,
  • Ahmed El Amarti,
  • Etelka Tombácz and
  • Cecilia Hodúr

30 September 2021

This study investigated the adsorption of phosphate from aqueous solutions using pomegranate peel (PP) as a bio-adsorbent. For this purpose, PP was activated via saponification using sodium hydroxide (NaOH) followed by cationization using iron chlori...

  • Review
  • Open Access
11 Citations
4,080 Views
44 Pages

21 March 2024

Water is one of the fundamental resources for the existence of humans and the environment. Throughout time, due to urbanization, expanding population, increased agricultural production, and intense industrialization, significant pollution with persis...

  • Article
  • Open Access
2 Citations
1,582 Views
8 Pages

30 May 2024

The separation of adjacent rare earth elements (REEs) is a challenging issue due to their chemical similarity. We have investigated the separation of adjacent REEs using four types of adsorbents consisting of silica gel modified with diglycolamic aci...

  • Article
  • Open Access
2 Citations
2,088 Views
15 Pages

Composition and Textural Characteristics of Char Powders Produced by Thermomechanical Processing of Sunflower Seed Husks

  • Sergey M. Frolov,
  • Anton S. Silantiev,
  • Ilias A. Sadykov,
  • Viktor A. Smetanyuk,
  • Fedor S. Frolov,
  • Yaroslav K. Hasiak,
  • Tatiana V. Dudareva,
  • Valentin G. Bekeshev,
  • Maksim V. Grishin and
  • Evgeniy K. Golubev
  • + 6 authors

12 September 2023

The paper presents the results of experimental studies on the production of fine char powder from sunflower seed husks by a novel method of thermomechanical treatment with pulsed shock waves and supersonic jets of the mixture of ultra-superheated (ab...

  • Communication
  • Open Access
12 Citations
3,186 Views
16 Pages

Sulphate Removal in Industrial Effluents Using Electrocoagulation Sludge as an Adsorbent

  • Siyanda Yamba,
  • Nomso C. Hintsho-Mbita,
  • Tunde L. Yusuf,
  • Richard Moutloali and
  • Nonhlangabezo Mabuba

30 September 2022

The high concentration of sulphates is detrimental to the infrastructure of wastewater treatment plants. Hence in this study, we present the application of electrocoagulation sludge as an adsorbent to remove sulphates from industrial effluents before...

  • Article
  • Open Access
13 Citations
4,520 Views
16 Pages

Sustainable Adsorbent Material Prepared by Soft Alkaline Activation of Spent Coffee Grounds: Characterisation and Adsorption Mechanism of Methylene Blue from Aqueous Solutions

  • Marco Cuccarese,
  • Sergio Brutti,
  • Angela De Bonis,
  • Roberto Teghil,
  • Francesco Di Capua,
  • Ignazio Marcello Mancini,
  • Salvatore Masi and
  • Donatella Caniani

30 January 2023

Dyes are emerging as hazardous pollutants, which are the primary challenges for environmentalists. Dye removal from effluents is urgently needed. Adsorption technology has been widely employed in this context as an effective method for removing colou...

  • Article
  • Open Access
1,203 Views
14 Pages

Preparation of Alumina Oxo-Cluster/Cellulose Polymers and Dye Adsorption Application

  • Henglong Tang,
  • Simeng Yao,
  • Zhu Long,
  • Xuefei Yang,
  • Pengxiang Si,
  • Chang Sun and
  • Dan Zhang

9 December 2024

Aluminum oxide clusters (AlOCs) possess high surface areas and customizable pore structures, making them applicable in the field of environmental remediation. However, their practical use is hindered by stability issues, aggregation tendencies, and r...

  • Feature Paper
  • Article
  • Open Access
1 Citations
2,408 Views
16 Pages

19 December 2023

For the enzymatic carboxylation of resorcinol to 2,6-dihydroxybenzoic acid (2,6-DHBA) using gaseous CO2 in an aqueous triethanolamine phase, an adsorption-based in situ product removal was demonstrated. The aim is to improve the reaction yield, which...

  • Article
  • Open Access
11 Citations
4,290 Views
18 Pages

Assessment of Melt Compounding with Zeolites as an Effective Deodorization Strategy for Mixed Plastic Wastes and Comparison with Degassing

  • Emilia Garofalo,
  • Leonardo Taurino,
  • Luciano Di Maio,
  • Heinz C. Neitzert and
  • Loredana Incarnato

13 April 2023

The emission of off-odors from mechanically recycled plastics severely limits their re-introduction into the market for the production of new objects, for the same use or even for less demanding applications, thus hindering the implementation of an e...

  • Feature Paper
  • Article
  • Open Access
16 Citations
3,720 Views
16 Pages

Defective Bismuth Oxide as Effective Adsorbent for Arsenic Removal from Water and Wastewater

  • Ramona Balint,
  • Mattia Bartoli,
  • Pravin Jagdale,
  • Alberto Tagliaferro,
  • Abdul Samad Memon,
  • Massimo Rovere and
  • Maria Martin

2 July 2021

In this work, we report solid-state synthetized defective Bi2O3 containing Bi(V) sites as effective and recyclable arsenic adsorbent materials. Bi2O3 was extensively characterized, and structure-related adsorption processes are reported. Both As(V) a...

  • Article
  • Open Access
24 Citations
4,668 Views
16 Pages

Adsorption of Deoxynivalenol (DON) from Corn Steep Liquor (CSL) by the Microsphere Adsorbent SA/CMC Loaded with Calcium

  • Ahmed Shalapy,
  • Shuangqing Zhao,
  • Chenxi Zhang,
  • Yifei Li,
  • Hairong Geng,
  • Sana Ullah,
  • Gang Wang,
  • Shujian Huang and
  • Yang Liu

25 March 2020

The occurrence of deoxynivalenol (DON) in animal feed is a serious issue for the livestock industry. Approaches using mycotoxin adsorbents are key to decreasing mycotoxin carryover from contaminated feed to animals. In this paper, a novel functional...

  • Article
  • Open Access
10 Citations
3,481 Views
17 Pages

31 May 2021

Recycling and reusing glass fiber waste (GFW) has become an environmental concern, as the means of disposal are becoming limited as GFW production increases. Therefore, this study developed a novel, cost-effective method to turn GFW into a mesoporous...

  • Article
  • Open Access
7 Citations
2,194 Views
11 Pages

7 September 2021

Recyclable, cheap, eco-friendly, and efficient adsorbent materials are very important for the removal of pollution. In this work, we report the design and implementation of ferrimagnetic-humic acid nanocomposites as superior magnetic adsorbent for he...

  • Article
  • Open Access
12 Citations
2,839 Views
17 Pages

Development of Recycled Expanded Polystyrene Nanofibers Modified by Chitosan for the Removal of Lead(II) from Water

  • Thiago R. Martins,
  • Patrick S. Costa,
  • Daniel A. Bertuol,
  • Mônica L. Aguiar and
  • Eduardo H. Tanabe

10 August 2022

Water contamination by potentially toxic metals and the generation of polymeric wastes are major world concerns. Therefore, novel recycled expanded polystyrene nanofibers modified by chitosan were successfully developed by centrifugal spinning and ap...

  • Article
  • Open Access
1 Citations
1,180 Views
14 Pages

20 January 2025

A simple and non-chemical binding nanofiber (β-CD/PA) adsorbent was obtained by electrospinning a mixture of β-cyclodextrin (β-CD) and polyacrylate (PA). The cationic dyes in wastewater were removed by the host–guest inclusion co...

  • Article
  • Open Access
5 Citations
3,134 Views
13 Pages

Recyclable Magnesium-Modified Biochar Beads for Efficient Removal of Phosphate from Wastewater

  • Biao Hu,
  • Nina Yan,
  • Zhiyu Zheng,
  • Lei Xu,
  • Hongde Xie and
  • Jingwen Chen

Although ball milling is effective for biochar modification with metal oxides for efficient phosphate removal, the recyclability of the adsorbent as well as the precursors for modification, still need to be optimized. Herein, a magnesium-modified bio...

  • Article
  • Open Access
8 Citations
2,733 Views
16 Pages

24 May 2022

This study aims to provide a system to recycle vanadium resources and recover membranes from waste proton-exchange membranes. This research is divided into two parts. To begin, ion exchange batch and column experiments were applied to adsorb vanadium...

  • Article
  • Open Access
14 Citations
6,177 Views
19 Pages

Removal of Methylene Blue from Water by BiFeO3/Carbon Fibre Nanocomposite and Its Photocatalytic Regeneration

  • Shuang Jiao,
  • Yiming Zhao,
  • Meng Bi,
  • Shuyue Bi,
  • Xiangman Li,
  • Binsong Wang,
  • Chensha Li and
  • Yinmao Dong

29 June 2018

It is essential to prepare a highly efficient and reproducible adsorbent for purifying industrial dye wastewater. In this work, a novel and efficient BiFeO3/carbon fiber (CCT-BFO) nanocomposite adsorbent was prepared by the template method and throug...

  • Article
  • Open Access
14 Citations
2,710 Views
16 Pages

29 September 2020

Previous studies showed that aromatic compounds such as lignin, phenols, and furans were main inhibitors of cellulase hydrolysis in recycled alkali black liquor (RBL), which should be removed to improve alkali utilization. In this study, three polyme...

  • Article
  • Open Access
6 Citations
2,753 Views
13 Pages

Comparative Analysis of Composition and Porosity of the Biogenic Powder Obtained from Wasted Crustacean Exoskeletonsafter Carotenoids Extraction for the Blue Bioeconomy

  • Fran Nekvapil,
  • Maria Mihet,
  • Geza Lazar,
  • Simona Cîntă Pinzaru,
  • Ana Gavrilović,
  • Alexandra Ciorîță,
  • Erika Levei,
  • Tudor Tamaș and
  • Maria-Loredana Soran

16 July 2023

The recovery and recycling of wasted resources are at the forefront of contemporary global issues. Methods of addressing several different issues may go hand-in-hand with each other, such as linking food waste recycling into bio-based adsorbent mater...

  • Article
  • Open Access
10 Citations
6,493 Views
11 Pages

23 August 2016

Three kinds of inorganic alkali are introduced into tetraethylenepentamine (TEPA) and polyethyleneimine (PEI)-modified MCM-41 as the CO2 adsorbents. X-ray diffraction, N2 adsorption, fourier-transform infrared and thermo gravimetric analysis are used...

  • Review
  • Open Access
33 Citations
10,164 Views
45 Pages

29 August 2024

Graphene-based adsorbents show great potential for application in the field of environmental pollution treatment due to their unique two-dimensional structure, high specific surface area, and tunable surface chemistry. This paper reviews the research...

  • Article
  • Open Access
71 Citations
8,397 Views
18 Pages

2 September 2016

In the present study, novel adsorbents having high adsorption capability and reusability were prepared using agricultural by-products: silk sericin and lignin. Silk sericin and lignin blend beads were successfully prepared using simple coagulation me...

  • Review
  • Open Access
18 Citations
16,180 Views
43 Pages

8 October 2024

The production and buildup of eggshell waste represents a challenge and an opportunity. The challenge is that uncontrolled disposal of generated eggshell waste relates to a sustainability concern for the environment. The opportunity relates to utiliz...

  • Article
  • Open Access
1 Citations
1,330 Views
14 Pages

21 June 2024

Against the backdrop of “carbon neutrality”, the green treatment of dye wastewater is particularly important. Currently, the adsorption method shows strong application prospects. Therefore, selecting efficient and recyclable adsorbents is...

  • Article
  • Open Access
18 Citations
4,471 Views
18 Pages

4 January 2018

In this paper, imine functionalized magnetic nanoparticles (MNP-Maph) were employed to aqueous solutions for the uptake of Zn(II) and As(III). Characterization of the material showed the successful synthesis of this material. Factors affecting the up...

  • Article
  • Open Access
3 Citations
2,178 Views
15 Pages

Preparation of Three-Dimensional MF/Ti3C2Tx/PmPD by Interfacial Polymerization for Efficient Hexavalent Chromium Removal

  • Linfeng Jin,
  • Qinglin Pan,
  • Xiaorui Li,
  • Changqing Su,
  • Zhongyu Wang,
  • Haiying Wang and
  • Lei Huang

18 August 2022

Heavy metal pollution is a serious threat to human health and the ecological environment, but adsorption technology based on nano adsorbents can effectively treat the crisis. However, due to the nanoscale effect, nano adsorbents have some crucial sho...

  • Article
  • Open Access
6 Citations
3,070 Views
18 Pages

The removal of the azo dyes Orange II (OII) and Reactive Black 5 (RB5) from aqueous solutions was studied using three types of adsorbents derived from chitosan: unmodified chitosan beads (un-Ch), chitosan beads tuned with a deep eutectic solvent (DES...

  • Article
  • Open Access
7 Citations
2,203 Views
14 Pages

10 April 2022

Deep eutectic solvents are a new generation of green solvents composed of hydrogen bond acceptors and donors. However, when used as extractants in liquid–liquid separation, they are difficult to recycle and easy to lose. In order to solve these...

  • Review
  • Open Access
168 Citations
17,129 Views
35 Pages

22 April 2022

Water is a vital resource that is required for social and economic development. A rapid increase in industrialization and numerous anthropogenic activities have resulted in severe water contamination. In particular, the contamination caused by heavy...

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