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96 Results Found

  • Article
  • Open Access
3 Citations
2,451 Views
21 Pages

27 February 2023

The occurrence of preferential flow in vegetated artificial substrates can weaken the stormwater management performance of green roofs. To explore preferential flow, various plant–substrate combinations that involved two Sedum species (Sedum sa...

  • Feature Paper
  • Article
  • Open Access
4 Citations
2,476 Views
13 Pages

Estimation Parameters of Soil Solute Transport Processes by Using the Electric Resistivity Method

  • Debao Lu,
  • Yinfeng Xia,
  • Nan Geng,
  • Hui Wang,
  • Jinlin Qian and
  • Cundong Xu

13 May 2022

Preferential solute transport is a common phenomenon in soil, and it is of great significance to accurately describe the mechanism of pollutant transport and water and soil environmental governance. However, the description of preferential solutes st...

  • Article
  • Open Access
4 Citations
4,784 Views
10 Pages

This study used the results of breakthrough experiments to elucidate the mechanism of cesium adsorption on carbonized rice hull and beech sawdust. The shape of the breakthrough curves and the substance eluted from the carbonized rice hull and beech s...

  • Article
  • Open Access
9 Citations
4,149 Views
13 Pages

21 February 2020

Environmental endocrine-disrupting chemicals have become a global environmental problem, and the distribution, transport, and fate of estrogens in soil and water environments closely relate to human and ecological health as well as to the remediation...

  • Article
  • Open Access
16 Citations
3,737 Views
10 Pages

Study on the Influential Factors of CO2 Storage in Low Permeability Reservoir

  • Ping Yue,
  • Rujie Zhang,
  • James J. Sheng,
  • Gaoming Yu and
  • Feng Liu

4 January 2022

As the demands of tight-oil Enhanced Oil Recovery (EOR) and the controlling of anthropogenic carbon emission have become global challenges, Carbon Capture Utilization and Sequestration (CCUS) has been recognized as an effective solution to resolve bo...

  • Article
  • Open Access
29 Citations
4,077 Views
17 Pages

23 May 2020

In the present study, variable forms of pelletized chitosan adsorbents were prepared and their sulfate uptake properties in aqueous solution was studied in a fixed-bed column system. Unmodified chitosan pellets (CP), cross-linked chitosan pellets wit...

  • Article
  • Open Access
1 Citations
3,225 Views
17 Pages

Comparing the Fate and Transport of MS2 Bacteriophage and Sodium Fluorescein in a Karstic Chalk Aquifer

  • Daniel Matthews,
  • Simon Bottrell,
  • Landis Jared West,
  • Louise Maurice,
  • Andrew Farrant,
  • Sarah Purnell and
  • Danny Coffey

13 February 2024

Groundwater flow and contaminant migration tracing is a vital method of identifying and characterising pollutant source-pathway-receptor linkages in karst aquifers. Bacteriophages are an attractive alternative tracer to non-reactive fluorescent dye t...

  • Article
  • Open Access
2 Citations
1,751 Views
19 Pages

22 October 2024

As a promising alternative water source to alleviate irrigation water scarcity in red soil regions in southern China, low-quality water could enhance regional water resource utilization and promote sustainable agriculture. However, its soluble salt a...

  • Article
  • Open Access
3 Citations
3,908 Views
13 Pages

CO2 Convective Dissolution in Oil-Saturated Unconsolidated Porous Media at Reservoir Conditions

  • Widuramina Amarasinghe,
  • Ingebret Fjelde,
  • Nils Giske and
  • Ying Guo

4 January 2021

During CO2 storage, CO2 plume mixes with the water and oil present at the reservoir, initiated by diffusion followed by a density gradient that leads to a convective flow. Studies are available where CO2 convective mixing have been studied in water p...

  • Article
  • Open Access
918 Views
21 Pages

Fixed-Bed Adsorption of Gallium and Indium from EoL CIGS Leachates on Extractant-Mesoporous Carbon: Integrated Experimental Simulation Approach

  • Víctor Ramos,
  • Alejandra Vázquez Adán,
  • Arturo Jiménez,
  • Rubén Miranda,
  • Eduardo Díez and
  • Araceli Rodríguez

22 August 2025

Although the exponential increase in photovoltaic installations does contribute to mitigating climate change, it has posed the problem of photovoltaic (PV) residue. As PV panels contain strategic metals, their recovery has become a priority. This pap...

  • Article
  • Open Access
35 Citations
5,915 Views
28 Pages

Comparison of Time Nonlocal Transport Models for Characterizing Non-Fickian Transport: From Mathematical Interpretation to Laboratory Application

  • Bingqing Lu,
  • Yong Zhang,
  • Chunmiao Zheng,
  • Christopher T. Green,
  • Charles O’Neill,
  • Hong-Guang Sun and
  • Jiazhong Qian

13 June 2018

Non-Fickian diffusion has been increasingly documented in hydrology and modeled by promising time nonlocal transport models. While previous studies showed that most of the time nonlocal models are identical with correlated parameters, fundamental cha...

  • Article
  • Open Access
16 Citations
4,060 Views
14 Pages

Mercury Removal from Aqueous Solutions Using Modified Pyrite: A Column Experiment

  • Yucheng Zhu,
  • Shuchuan Peng,
  • Ping Lu,
  • Tianhu Chen and
  • Yan Yang

31 December 2019

Modified pyrite (MPy), which was obtained from calcination in an N2 atmosphere, was used as a sorbent for removing Hg(II) from aqueous solutions. Fixed-bed column experiments were conducted to determine the Hg(II) removal ability of MPy from aqueous...

  • Article
  • Open Access
986 Views
30 Pages

From Batch to Pilot: Scaling Up Arsenic Removal with an Fe-Mn-Based Nanocomposite

  • Jasmina Nikić,
  • Jovana Jokić Govedarica,
  • Malcolm Watson,
  • Đorđe Pejin,
  • Aleksandra Tubić and
  • Jasmina Agbaba

16 July 2025

Arsenic contamination in groundwater is a significant public health concern, with As(III) posing a greater and more challenging risk than As(V) due to its higher toxicity, mobility, and weaker adsorption affinity. Fe-Mn-based adsorbents offer a promi...

  • Proceeding Paper
  • Open Access
1 Citations
1,568 Views
6 Pages

26 October 2023

Graft copolymerization of acrylic acid onto starch can provide renewable alternatives for current applications of water-soluble performance polymers from fossil resources. In our laboratory, Fenton’s reagent was mostly used as the initiator for...

  • Article
  • Open Access
44 Citations
4,356 Views
25 Pages

Breakthrough Curves Prediction of Selenite Adsorption on Chemically Modified Zeolite Using Boosted Decision Tree Algorithms for Water Treatment Applications

  • Neda Halalsheh,
  • Odey Alshboul,
  • Ali Shehadeh,
  • Rabia Emhamed Al Mamlook,
  • Amani Al-Othman,
  • Muhammad Tawalbeh,
  • Ali Saeed Almuflih and
  • Charalambos Papelis

16 August 2022

This work describes an experimental and machine learning approach for the prediction of selenite removal on chemically modified zeolite for water treatment. Breakthrough curves were constructed using iron-coated zeolite adsorbent and the adsorption b...

  • Article
  • Open Access
11 Citations
2,918 Views
22 Pages

Adsorption of Acid Yellow 23 Dye on Organobentonite/Alginate Hydrogel Beads in a Fixed-Bed Column

  • Daniela Rivera-Arenas,
  • Iván F. Macías-Quiroga,
  • María T. Dávila-Arias,
  • Jorge J. Vélez-Upegui and
  • Nancy R. Sanabria-González

30 August 2023

This research evaluates the use of organoclay/alginate hydrogels in removing Acid Yellow 23 in a fixed-bed column and contributes to the application of these composites in the context of the adsorption of anionic dyes that are present in wastewater....

  • Article
  • Open Access
1 Citations
2,453 Views
13 Pages

A Method for Calibrating the Transient Storage Model from the Early and Late-Time Behavior of Breakthrough Curves

  • Eleonora Dallan,
  • Andrea Bottacin-Busolin,
  • Mattia Zaramella and
  • Andrea Marion

3 March 2023

Solute transport in rivers is controlled by mixing processes that occur over a wide spectrum of spatial and temporal scales. Deviations from the classic advection–dispersion model observed in tracer test studies are known to be generated by the...

  • Article
  • Open Access
11 Citations
4,064 Views
18 Pages

Porous Waste Glass for Lead Removal in Packed Bed Columns and Reuse in Cement Conglomerates

  • Andrea Petrella,
  • Danilo Spasiano,
  • Marco Race,
  • Vito Rizzi,
  • Pinalysa Cosma,
  • Stefania Liuzzi and
  • Nicoletta De Vietro

28 December 2018

A porous waste glass (RWPG = recycled waste porous glass) was used in wastewater treatments for the removal of lead ions from single, binary, and ternary metal solutions (with cadmium and nickel ions). Experiments were performed in columns (30 cm3, 1...

  • Article
  • Open Access
2 Citations
2,103 Views
16 Pages

6 January 2023

Ion-adsorption-type rare-earth ores (IATREOs) that have experienced granite weathering have good permeability, and their leaching process involves the solute transport problem, which is dominated by convection. Because of the oscillation and dispersi...

  • Article
  • Open Access
10 Citations
3,290 Views
14 Pages

Batch and Column Adsorption of Phosphorus by Modified Montmorillonite

  • Zhonghao He,
  • Jiajun Chen,
  • Jianzun Lu,
  • Sabrina Yanan Jiang,
  • Lingcheng Su,
  • Chiu Hong Lee and
  • Huada Daniel Ruan

3 June 2022

Phosphorus pollutants are a crucial component of water eutrophication. In this study, montmorillonite modified by Keggin Al13 and hexadecyltrimethyl ammonium (Al13-O-MMt) was used as an adsorbent to remove phosphorus from solutions and thus simulate...

  • Article
  • Open Access
7 Citations
2,221 Views
14 Pages

21 October 2022

Smart hydrogels, owing to their exceptional viscoelastic and deformable capacity in response to environmental stimulation involving temperature and pH, have been successfully applied in oilfields for purposes such as water and/or gas shutoff treatmen...

  • Article
  • Open Access
6 Citations
2,522 Views
11 Pages

Adsorption of Sb(III) from Aqueous Solution by nZVI/AC: A Magnetic Fixed-Bed Column Study

  • Huijie Zhu,
  • Qiang Huang,
  • Mingyan Shi,
  • Shuai Fu,
  • Xiuji Zhang,
  • Zhe Yang,
  • Jianhong Lu and
  • Bo Liu

25 July 2021

The effectiveness of nanoscale zero-valent iron(nZVI) immobilized on activated carbon (nZVI/AC) in removing antimonite (Sb(III)) from simulated contaminated water was investigated with and without a magnetic fix-bed column reactor. The experiments we...

  • Article
  • Open Access
3 Citations
3,092 Views
26 Pages

Computing Localized Breakthrough Curves and Velocities of Saline Tracer from Ground Penetrating Radar Monitoring Experiments in Fractured Rock

  • Peter-Lasse Giertzuch,
  • Alexis Shakas,
  • Joseph Doetsch,
  • Bernard Brixel,
  • Mohammadreza Jalali and
  • Hansruedi Maurer

19 May 2021

Solute tracer tests are an established method for the characterization of flow and transport processes in fractured rock. Such tests are often monitored with borehole sensors which offer high temporal sampling and signal to noise ratio, but only limi...

  • Article
  • Open Access
13 Citations
4,682 Views
12 Pages

Column Adsorption Studies for the Removal of Ammonium Using Na-Zeolite-Based Geopolymers

  • Elavarasi Sundhararasu,
  • Hanna Runtti,
  • Teija Kangas,
  • Janne Pesonen,
  • Ulla Lassi and
  • Sari Tuomikoski

11 December 2022

The aim of this study was to examine the removal of ammonium ions from a synthetic model solution by using Na-zeolite-based geopolymers. Na-zeolite (=analcime) is a residue from mining industry. Three adsorbents were prepared from Na-zeolite using di...

  • Article
  • Open Access
61 Citations
7,253 Views
16 Pages

Modified Activated Carbon for Copper Ion Removal from Aqueous Solution

  • Wei-Sheng Chen,
  • Yun-Chung Chen and
  • Cheng-Han Lee

12 January 2022

Because of increasing environmental awareness, it is becoming more important to remove harmful elements from water solutions. This study used activated carbon (AC) derived from waste wood-based panels as the base material, oxidized with nitric acid (...

  • Communication
  • Open Access
5 Citations
4,107 Views
11 Pages

Gram-Scale Synthesis of an Ultrastable Microporous Metal-Organic Framework for Efficient Adsorptive Separation of C2H2/CO2 and C2H2/CH4

  • Nuo Xu,
  • Yunjia Jiang,
  • Wanqi Sun,
  • Jiahao Li,
  • Lingyao Wang,
  • Yujie Jin,
  • Yuanbin Zhang,
  • Dongmei Wang and
  • Simon Duttwyler

24 August 2021

A highly water and thermally stable metal-organic framework (MOF) Zn2(Pydc)(Ata)2 (1, H2Pydc = 3,5-pyridinedicarboxylic acid; HAta = 3-amino-1,2,4-triazole) was synthesized on a large scale using inexpensive commercially available ligands for efficie...

  • Article
  • Open Access
26 Citations
9,980 Views
15 Pages

22 February 2018

Zeolitic imidazolate framework-8 (ZIF-8) was used as an adsorbent for the removal of toluene in its gas phase at different relative humidity (RH). High-purity ZIF-8 with an average particle size of 0.64 µm synthesized from an aqueous solution at room...

  • Article
  • Open Access
2 Citations
2,261 Views
13 Pages

Preparation of Sorbents Containing Straetlingite Phase from Zeolitic By-Product and Their Performance for Ammonium Ion Removal

  • Agnė Mikelionienė,
  • Danutė Vaičiukynienė,
  • Aras Kantautas,
  • Algirdas Radzevičius and
  • Katarzyna Zarębska

In this study, straetlingite-based sorbents were used for NH4+ ion removal from a synthetic aqueous solution and from the wastewater of an open recirculation African catfish farming system. This study was performed using column experiments with four...

  • Article
  • Open Access
7 Citations
4,918 Views
22 Pages

29 April 2023

The potential uses of 3D scan data in the construction industry have been extensively researched in the last 20 years, with many benefits over traditional methods proclaimed by researchers. However, despite their advocated benefits, their implementat...

  • Article
  • Open Access
3 Citations
1,060 Views
16 Pages

1 June 2025

Traditional underwater acoustic reconnaissance technologies are limited in directly detecting underwater acoustic communication signals. This paper proposes a dual-feature ResNet–Transformer model with two innovative breakthroughs: (1) A dual-m...

  • Article
  • Open Access
7 Citations
3,331 Views
9 Pages

26 April 2021

The white-spotted longicorn beetle, Anoplophora malasiaca, is one of the most destructive pests of horticultural crops and street trees. Effective controls are needed because the effect of marketed insecticides is limited. Entomopathogenic fungi offe...

  • Article
  • Open Access
7 Citations
2,865 Views
12 Pages

This study reports the recovery of Pd(II) from acid solution by a polyethylenimine (PEI)-crosslinked chitin (PEI-chitin) biosorbent. FE-SEM analysis demonstrated that there are many slot-like pores on PEI-chitin. The N2 adsorption–desorption experime...

  • Communication
  • Open Access
1 Citations
2,479 Views
14 Pages

23 August 2024

This manuscript describes molybdenum recovery from copper Pregnant Leaching Solutions (PLSs) in the copper oxide mining industry with high contents of chloride ions. This product was recovered from the copper leaching pond solutions of the Chilean Na...

  • Article
  • Open Access
9 Citations
2,584 Views
12 Pages

Biosorptive Removal of Ethacridine Lactate from Aqueous Solutions by Saccharomyces pastorianus Residual Biomass/Calcium Alginate Composite Beads: Fixed-Bed Column Study

  • Lăcrămioara Rusu,
  • Cristina-Gabriela Grigoraș,
  • Andrei-Ionuț Simion,
  • Elena-Mirela Suceveanu,
  • Andreea V. Dediu Botezatu and
  • Maria Harja

2 July 2022

In this study, ethacridine lactate removal from aqueous solution using a biosorbent material based on residual microbial biomass and natural polymers in fixed-bed continuous column was investigated. Composite beads of Saccharomyces pastorianus residu...

  • Article
  • Open Access
5 Citations
1,989 Views
16 Pages

27 February 2024

This study addresses the escalating demand for clean water resources driven by population growth and water quality deterioration. The research focuses on evaluating the efficacy of a nanocomposite material, incorporating zero valent iron nanoparticle...

  • Article
  • Open Access
3 Citations
3,491 Views
19 Pages

9 February 2022

Septic systems are a common contributor of contaminants to groundwater that have implications for source water protection, particularly in fractured sedimentary bedrock environments. Two 24-h tracer experiments were performed that applied (1) the dye...

  • Article
  • Open Access
28 Citations
3,978 Views
14 Pages

Application of Biochar to the Remediation of Pb-Contaminated Solutions

  • Maria Rosaria Boni,
  • Agostina Chiavola and
  • Simone Marzeddu

27 November 2018

BIOTON® biochar, produced by a wood biomass pyrolysis process, which is usually applied as soil amendment, was investigated for a novel application, i.e., the adsorption of lead from contaminated solutions. The experimental activity included phys...

  • Article
  • Open Access
3 Citations
2,693 Views
11 Pages

Comparative Transport of Legionella and E. coli through Saturated Porous Media in a Two-Dimensional Tank

  • Indrayudh Mondal,
  • Jazlyn Acosta,
  • Absar Alum,
  • Brooke K. Mayer,
  • Paul Dahlen and
  • Morteza Abbaszadegan

13 November 2020

This study investigated bacterial transport in a two-dimensional (2-D) tank to evaluate the bacterial behavior of Legionella pneumophila as compared to Escherichia coli under saturated flow to simulate aquifer conditions. The experiments were perform...

  • Article
  • Open Access
7 Citations
2,636 Views
20 Pages

19 May 2024

This study investigates the adsorption of Congo red (CR) dye from wastewater using banana peel biochar (BPBC) in both batch and fixed-bed column modes. BPBC was characterized using FTIR, SEM, XRD, TGA, and BET analysis, revealing a predominantly meso...

  • Article
  • Open Access
26 Citations
7,372 Views
17 Pages

26 April 2017

Multichannel synthetic aperture radar (SAR) is a significant breakthrough to the inherent limitation between high-resolution and wide-swath (HRWS) compared with conventional SAR. Moving target indication (MTI) is an important application of spaceborn...

  • Feature Paper
  • Article
  • Open Access
4,134 Views
10 Pages

20 May 2020

Radioactive strontium-90 (90Sr2+) is a fission byproduct of uranium and plutonium production, and therefore understanding its environmental fate is of particular importance for predicting the evolution of long-term risk from historical releases. The...

  • Article
  • Open Access
1 Citations
987 Views
12 Pages

12 February 2025

Future generations of wireless networks at high-frequency spectrum suffer from limited coverage and Non-Line- of-Sight signal blockage, challenging emerging applications, such as smart industries and intelligent automation systems. Collaborative and...

  • Article
  • Open Access
4 Citations
3,305 Views
18 Pages

17 October 2019

As one of the most important breakthroughs for modern transportation, the indoor location-based technology has been gradually penetrating into our daily lives and underlines the foundation of the Internet of Things (IoT). To improve the positioning a...

  • Article
  • Open Access
25 Citations
12,396 Views
10 Pages

Blind spot detection is an important feature of Advanced Driver Assistance Systems (ADAS). In this paper, we provide a camera-based deep learning method that accurately detects other vehicles in the blind spot, replacing the traditional higher cost s...

  • Review
  • Open Access
480 Citations
62,517 Views
23 Pages

General Pathways of Pain Sensation and the Major Neurotransmitters Involved in Pain Regulation

  • Mun Fei Yam,
  • Yean Chun Loh,
  • Chu Shan Tan,
  • Siti Khadijah Adam,
  • Nizar Abdul Manan and
  • Rusliza Basir

Pain has been considered as a concept of sensation that we feel as a reaction to the stimulus of our surrounding, putting us in harm’s way and acting as a form of defense mechanism that our body has permanently installed into its system. Howeve...

  • Conference Report
  • Open Access
1 Citations
4,847 Views
22 Pages

24 January 2021

The Conferences of the Middle European Cooperation in Statistical Physics (MECO) were created as an attempt to establish and maintain an exchange between scientists in the fields of statistical and condensed matter physics from Western and Eastern co...

  • Article
  • Open Access
1 Citations
2,524 Views
16 Pages

25 May 2024

With the development of industry and agriculture, the level of organic pollutants in groundwater exceeds the standard in some parts of the transition zone of the Jianghan Plain–Dabie Mountain area. To investigate the ability of low-permeability...

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