PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

New electrochemical system enables efficient metal recovery from industrial wastewater

New electrochemical system enables efficient metal recovery from industrial wastewater
2024-02-22
(Press-News.org)

A research team at Tsinghua University led by Professor Huijuan Liu has developed a new electrochemical system that promises to revolutionize metal recovery from industrial wastewater. The research was published in Engineering.

Industrial wastewater poses significant environmental hazards due to heavy metal pollution. Current methods for metal recovery, such as electrodeposition, suffer from interfacial ion transport limitations, resulting in slow and low-quality recovery. In their study, the team proposed a novel approach that integrates a transient electric field (TE) and swirling flow (SF) to improve mass transfer and promote interfacial ion transport simultaneously.

The research team explored the effects of different operating conditions, including operation mode, transient frequency, and flow rate, on metal recovery. They discovered that the optimal conditions for rapid and efficient sequential recovery of copper in TE&SF mode were achieved with low and high electric levels of 0 and 4 V, a 50% duty cycle, a 1 kHz frequency, and a 400 L/h flow rate. The kinetic coefficients of TE&SF electrodeposition were found to be 3.5−4.3 times and 1.37−1.97 times that of single TE and SF electrodeposition, respectively.

To gain insights into the process, the team simulated the deposition process under TE and SF conditions. The results confirmed the efficient concurrence of interfacial ion transport and charge transfer, leading to rapid and high-quality metal recovery. The combined deposition strategy demonstrates not only effective metal pollution reduction but also promotes resource recycling.

This innovative approach overcomes the limitations of interfacial ion transport in conventional electrodeposition methods. By coupling a transient electric field with turbulent flow, the team successfully improves bulk and interfacial ion transport, thus enhancing the reaction kinetics. The synergy of the transient electric field and swirling flow achieves not only rapid metal recovery but also deposits with homogeneous compositions and uniform morphologies.

Furthermore, the system shows wide applicability in recovering metals with redox potentials higher than those of hydrogen evolution and water reduction. This capability allows for the high-value recovery of precious and heavy metals, making it a valuable asset for industries dealing with metal waste.

The research conducted by Professor Huijuan Liu and her team provides new insights into efficient metal recovery from industrial wastewater. Their findings open up possibilities for environmentally friendly and resource-efficient metal recycling processes, contributing to the reduction of pollution and the preservation of valuable resources.

The paper “Efficient Metal Recovery from Industrial Wastewater: Potential Oscillation and Turbulence Mode for Electrochemical System ” authored by Li Chen, Gong Zhang, Huijuan Liu, Shiyu Miao, Qingbai Chen, Huachun Lan, Jiuhui Qu. Full text of the open access paper: https://doi.org/10.1016/j.eng.2023.12.002. For more information about the Engineering, follow us on Twitter (https://twitter.com/EngineeringJrnl) & like us on Facebook (https://www.facebook.com/EngineeringJrnl).

 

About Engineering:

Engineering (ISSN: 2095-8099 IF:12.8) is an international open-access journal that was launched by the Chinese Academy of Engineering (CAE) in 2015. Its aims are to provide a high-level platform where cutting-edge advancements in engineering R&D, current major research outputs, and key achievements can be disseminated and shared; to report progress in engineering science, discuss hot topics, areas of interest, challenges, and prospects in engineering development, and consider human and environmental well-being and ethics in engineering; to encourage engineering breakthroughs and innovations that are of profound economic and social importance, enabling them to reach advanced international standards and to become a new productive force, and thereby changing the world, benefiting humanity, and creating a new future.

END


[Attachments] See images for this press release:
New electrochemical system enables efficient metal recovery from industrial wastewater New electrochemical system enables efficient metal recovery from industrial wastewater 2

ELSE PRESS RELEASES FROM THIS DATE:

Non-solvating electrolytes enhance performance of organic electrode-based batteries

Non-solvating electrolytes enhance performance of organic electrode-based batteries
2024-02-22
In a groundbreaking study, Professor Won-Jin Kwak in the School of Energy and Chemical Engineering at UNIST, in collaboration with researchers from Hanyang University, have pioneered a method to significantly enhance the performance and lifespan of organic electrode-based batteries. The findings promise to accelerate the commercialization of eco-friendly batteries and pave the way for further advancements in the field. Organic electrodes have long been recognized for their cost-effectiveness and natural abundance, making them a promising alternative to traditional lithium-ion battery ...

NIFTY® DNBSEQ-G99 platform receives CE-IVDD certification and advances prenatal care standards

NIFTY® DNBSEQ-G99 platform receives CE-IVDD certification and advances prenatal care standards
2024-02-22
BGI Europe A/S, a wholly owned subsidiary of BGI Genomics, announced its NIFTY® non-invasive prenatal testing kit and software (CE-IVDD List B) were granted an extension under its existing CE-IVDD certification to include the DNBSEQ-G99 model to meet the European Union regulations for medical devices. In January 2024, BGI Genomics unveiled the NIFTY® ultra-fast non-invasive prenatal genetic testing product, utilizing the innovative DNBSEQ-G99 platform. Designed for both small and medium throughput, this platform ensures top-notch testing ...

Living in violent neighborhoods affects children's brain development

2024-02-22
Living in neighborhoods with high levels of violence can affect children’s development by changing the way that a part of the brain detects and responds to potential threats, potentially leading to poorer mental health and other negative outcomes, according to research published by the American Psychological Association. However, nurturing parents can help protect kids against these detrimental effects, according to the study, published in the journal Developmental Psychology. “Decades of research ...

World’s first real-time wearable human emotion recognition technology developed!

World’s first real-time wearable human emotion recognition technology developed!
2024-02-22
A groundbreaking technology that can recognize human emotions in real time has been developed by Professor Jiyun Kim and his research team in the Department of Material Science and Engineering at UNIST. This innovative technology is poised to revolutionize various industries, including next-generation wearable systems that provide services based on emotions. Understanding and accurately extracting emotional information has long been a challenge due to the abstract and ambiguous nature of human affects such as emotions, ...

MD Anderson acquires inducible switch technologies for cell therapy

2024-02-22
HOUSTON ― The University of Texas MD Anderson Cancer Center today announced it has acquired certain assets from Bellicum Pharmaceuticals, Inc. related to the CaspaCIDe® switch platform and the GoCAR® platform. The transaction also includes clinical-grade stocks of rimiducid, an agent used to trigger the switches. As a result of this acquisition, MD Anderson may incorporate these platforms into its own cell therapy programs. The institution also intends to make the technology ...

UTSA doctoral student studies solutions to prevent contaminated water sources

UTSA doctoral student studies solutions to prevent contaminated water sources
2024-02-22
From Bangladesh to India to Texas, Tom Varner is leveraging his research to improve sources for drinking water around the world. Varner, a UTSA doctoral student in environmental science and engineering, explored the mobility of arsenic from the sediments surrounding the Meghna River in Bangladesh as part of a National Science Foundation-funded project. The river flows through central Bangladesh, where elevated concentrations of arsenic in the groundwater threaten the welfare of millions of people. Long-term exposure to arsenic, which is toxic when ingested, can lead ...

Treating newly-diagnosed Crohn’s patients with advanced therapy leads to dramatic improvements in outcomes

2024-02-22
A large-scale clinical trial of treatment strategies for Crohn’s disease has shown that offering early advanced therapy to all patients straight after diagnosis can drastically improve outcomes, including by reducing the number of people requiring urgent abdominal surgery for treatment of their disease by ten-fold. The PROFILE trial, led by researchers at the University of Cambridge, involved 386 patients with newly-diagnosed active Crohn’s disease. Recruiting from 40 hospitals across the UK, and supported by the National Institute for Health and Care Research (NIHR) Clinical Research Network, it sought to test whether a biomarker – a genetic signature ...

Uncovering anxiety: Scientists identify causative pathway and potential cures

Uncovering anxiety: Scientists identify causative pathway and potential cures
2024-02-22
Anxiety-related disorders can have a profound impact on the mental health and quality of life of affected individuals. Understanding the neural circuits and molecular mechanisms that trigger anxiety can aid in the development of effective targeted pharmacological treatments. Delta opioid receptors (DOP), which localize in the regions of the brain associated with emotional regulation, play a key role in the development of anxiety. Several studies have demonstrated the therapeutic effects of DOP agonists (synthetic compounds which selectively bind to DOPs and mimic the effect of ...

Stronger storms free more nutrients from mud flats

Stronger storms free more nutrients from mud flats
2024-02-22
If storms become stronger in the future due to climate change, more nitrogen may be released from the bottom of coastal seas. This is shown by research of marine biogeochemist Dunia Rios-Yunes at NIOZ in Yerseke. Rios-Yunes will defend her PhD-thesis today at the University of Utrecht. “The dynamics of nutrients in deltas and estuaries have been a bit of a blind spot for marine science, so far”, she says.  Inflatable couch  For her experiments, Rios-Yunes spent many hours on an inflatable couch on ...

New study is first step in predicting carbon emissions in agriculture

2024-02-22
MINNEAPOLIS / ST. PAUL (02/19/2024)—For the first time, researchers at the University of Minnesota Twin Cities (UMN) and the University of Illinois Urbana-Champaign (UIUC) have demonstrated that it is possible to provide accurate, high-resolution predictions of carbon cycles in agroecosystems, which could help mitigate the impacts of climate change. The study by scholars from the UMN-led National Artificial Intelligence Institute for Climate-Land Interactions, Mitigation, Adaptation, Tradeoffs and Economy (AI-CLIMATE) and UIUC-led Agroecosystem Sustainability ...

LAST 30 PRESS RELEASES:

Preschool education: A key to supporting allophone children

CNIC scientists discover a key mechanism in fat cells that protects the body against energetic excess

Chemical replacement of TNT explosive more harmful to plants, study shows

Scientists reveal possible role of iron sulfides in creating life in terrestrial hot springs

Hormone therapy affects the metabolic health of transgender individuals

Survey of 12 European countries reveals the best and worst for smoke-free homes

First new treatment for asthma attacks in 50 years

Certain HRT tablets linked to increased heart disease and blood clot risk

Talking therapy and rehabilitation probably improve long covid symptoms, but effects modest

Ban medical research with links to the fossil fuel industry, say experts

Different menopausal hormone treatments pose different risks

Novel CAR T cell therapy obe-cel demonstrates high response rates in adult patients with advanced B-cell ALL

Clinical trial at Emory University reveals twice-yearly injection to be 96% effective in HIV prevention

Discovering the traits of extinct birds

Are health care disparities tied to worse outcomes for kids with MS?

For those with CTE, family history of mental illness tied to aggression in middle age

The sound of traffic increases stress and anxiety

Global food yields have grown steadily during last six decades

Children who grow up with pets or on farms may develop allergies at lower rates because their gut microbiome develops with more anaerobic commensals, per fecal analysis in small cohort study

North American Early Paleoindians almost 13,000 years ago used the bones of canids, felids, and hares to create needles in modern-day Wyoming, potentially to make the tailored fur garments which enabl

Higher levels of democracy and lower levels of corruption are associated with more doctors, independent of healthcare spending, per cross-sectional study of 134 countries

In major materials breakthrough, UVA team solves a nearly 200-year-old challenge in polymers

Wyoming research shows early North Americans made needles from fur-bearers

Preclinical tests show mRNA-based treatments effective for blinding condition

Velcro DNA helps build nanorobotic Meccano

Oceans emit sulfur and cool the climate more than previously thought

Nanorobot hand made of DNA grabs viruses for diagnostics and blocks cell entry

Rare, mysterious brain malformations in children linked to protein misfolding, study finds

Newly designed nanomaterial shows promise as antimicrobial agent

Scientists glue two proteins together, driving cancer cells to self-destruct

[Press-News.org] New electrochemical system enables efficient metal recovery from industrial wastewater