* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Monday, September 1, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Comanche Nation Entertainment closes casino near Devol – KSWO 7News

    Comanche Nation Entertainment Closes Casino Near Devol in Surprising Move

    Erykah Badu Announces ‘Abi & Alan’ Album With The Alchemist Will Be Delayed – yahoo.com

    Erykah Badu Opens Up About the Delay of Her Highly Anticipated ‘Abi & Alan’ Album with The Alchemist

    If You Needed Some BTS Pics Of The Rock’s Tree Trunk Legs To Spice Up Your Day, We Got ‘Em – yahoo.com

    Need a Boost? Check Out These Epic BTS Shots of The Rock’s Tree Trunk Legs!

    Sabrina Carpenter’s pearl-clutching magic? Humor – CNN

    Sabrina Carpenter’s pearl-clutching magic? Humor – CNN

    South Park Is In Trouble And Needs To Change Course, Fast – yahoo.com

    South Park Faces Major Challenges and Must Adapt Fast to Survive

    ‘Netflix House’ entertainment complexes are coming. Here’s when they open – Los Angeles Times

    Exciting News: Netflix’s House Entertainment Complexes Are Opening Soon!

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    This Secret Technology Will Make The IPhone 17 Super Thin Air – VOI.ID

    How This Breakthrough Technology Will Make the iPhone 17 Incredibly Thin and Lightweight

    Gator football kicks off with excitement and new technology – WCJB | TV20

    Gator Football Kicks Off with Thrilling Action and Innovative Technology

    Marvell Technology (MRVL) Loses 18.6% as Growth Outlook Fails to Impress – Yahoo Finance

    Marvell Technology (MRVL) Loses 18.6% as Growth Outlook Fails to Impress – Yahoo Finance

    Propelling solar technology into a perovskite future – CORDIS

    Propelling solar technology into a perovskite future – CORDIS

    13 Top Technology Trends (2025) – Exploding Topics

    13 Game-Changing Technology Trends to Watch in 2025

    Japan’s legacy LCD and chip technology find new home in India – Nikkei Asia

    How Japan’s Breakthrough LCD and Chip Technologies Are Driving Innovation in India

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Comanche Nation Entertainment closes casino near Devol – KSWO 7News

    Comanche Nation Entertainment Closes Casino Near Devol in Surprising Move

    Erykah Badu Announces ‘Abi & Alan’ Album With The Alchemist Will Be Delayed – yahoo.com

    Erykah Badu Opens Up About the Delay of Her Highly Anticipated ‘Abi & Alan’ Album with The Alchemist

    If You Needed Some BTS Pics Of The Rock’s Tree Trunk Legs To Spice Up Your Day, We Got ‘Em – yahoo.com

    Need a Boost? Check Out These Epic BTS Shots of The Rock’s Tree Trunk Legs!

    Sabrina Carpenter’s pearl-clutching magic? Humor – CNN

    Sabrina Carpenter’s pearl-clutching magic? Humor – CNN

    South Park Is In Trouble And Needs To Change Course, Fast – yahoo.com

    South Park Faces Major Challenges and Must Adapt Fast to Survive

    ‘Netflix House’ entertainment complexes are coming. Here’s when they open – Los Angeles Times

    Exciting News: Netflix’s House Entertainment Complexes Are Opening Soon!

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    This Secret Technology Will Make The IPhone 17 Super Thin Air – VOI.ID

    How This Breakthrough Technology Will Make the iPhone 17 Incredibly Thin and Lightweight

    Gator football kicks off with excitement and new technology – WCJB | TV20

    Gator Football Kicks Off with Thrilling Action and Innovative Technology

    Marvell Technology (MRVL) Loses 18.6% as Growth Outlook Fails to Impress – Yahoo Finance

    Marvell Technology (MRVL) Loses 18.6% as Growth Outlook Fails to Impress – Yahoo Finance

    Propelling solar technology into a perovskite future – CORDIS

    Propelling solar technology into a perovskite future – CORDIS

    13 Top Technology Trends (2025) – Exploding Topics

    13 Game-Changing Technology Trends to Watch in 2025

    Japan’s legacy LCD and chip technology find new home in India – Nikkei Asia

    How Japan’s Breakthrough LCD and Chip Technologies Are Driving Innovation in India

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
Earth-News
No Result
View All Result
Home Science

Researchers obtain promising results for control of pollutants in water

March 27, 2024
in Science
Researchers obtain promising results for control of pollutants in water
Share on FacebookShare on Twitter

Researchers obtain promising results for control of pollutants in water

The mixture of pollutants was degraded by means of a photochemical system in which a light source is activated by microwave radiation. Credit: CDMF

An article published in the journal Catalysis Communications describes a simple, efficient and sustainable approach to the degradation and quantitative monitoring of a mixture of polycyclic aromatic hydrocarbons (PAHs), emerging pollutants that contaminate various ecosystems, owing to oil and other fossil fuel spills and improper disposal of industrial waste.

Emerging pollutants are chemical compounds that have recently been identified as harmful to human health and the environment, but are not regularly monitored and cannot be removed by conventional wastewater treatment methods. Examples include bisphenol (used in certain types of plastic), some pesticides, and substances found in personal care products and medications.

In pursuit of solutions to this problem, researchers in Brazil affiliated with the Federal University of São Carlos (UFSCar), São Paulo State University (UNESP) and the Federal University of Paraíba (UFPB) prepared a mixture containing low levels of naphthalene, anthracene and dibenzothiophene in surface water, simulating the natural environment.

They used excitation-emission matrix (EEM) fluorescence spectroscopy as a higher-order method of analysis and calibration coupled with parallel factor analysis for data processing, whereby they separated the spectral components of the mixture in order to identify and quantify each pollutant, as well as other potential compounds present in natural water.

This methodology enabled each analysis to be completed in less than two minutes, without production of any residue or the need for more costly and sophisticated techniques, such as chromatography.

The mixture was then degraded using a photochemical system in which a lamp was activated by microwave radiation. The system degraded between 88% and 100% of the organic pollutants in only a minute. This high performance was associated with water photolysis that effectively generated hydroxyl radicals (oxidizing species capable of degrading organic pollutants at high speed).

According to Kelvin C. Araújo, first author of the article and a researcher at the Center for Development of Functional Materials (CDMF), a Research, Innovation and Dissemination Center (RIDC) hosted by UFSCar, one of the highlights of the study was the choice of PAH monitoring method. Chromatography, the usual method, limits progress in this type of research in many parts of the world because the equipment is expensive and the technique requires more sophisticated training, he explained.

In this study, the researchers used a spectrofluorometer, which is more affordable for many laboratories. The analysis is up to five times faster than in chromatography, and no residue is produced after the process. Moreover, Araújo noted, demand for more accessible methods was detected by the group, which has long studied water treatment using chromatography as its main analytical technique.

Photochemical system

Another significant aspect of the study was the use of a microwave-activated photochemical system to degrade the PAHs. According to Ailton Moreira, currently a researcher at UNESP Institute of Chemistry in Araraquara and a co-author of the article, efficiently and quickly degrading emerging pollutants without the use of catalysts is a major challenge.

“The challenge is even more daunting when you’re working with mixtures of pollutants in natural water because of the many potential inhibitors of the degradation process, but the photochemical system performed outstandingly,” Moreira said, adding that the same system had already proven effective in studies involving degradation of agricultural and pharmaceutical waste. Based on the findings described in the article, the photochemical system could be used on a far larger scale—in wastewater treatment plants, for example.

The authors confirm that both the analytical method and the degradation process will be the focus of future studies in different projects led by members of the group. Next steps will include application of these technologies at a wastewater treatment plant in Gavião Peixoto, a city in São Paulo state, to monitor and degrade emerging pollutants.

More information:
Kelvin C. Araújo et al, Fast and efficient processes for oxidation and monitoring of polycyclic aromatic hydrocarbons in environmental matrices, Catalysis Communications (2023). DOI: 10.1016/j.catcom.2023.106834

Citation:
Researchers obtain promising results for control of pollutants in water (2024, March 26)
retrieved 26 March 2024
from https://phys.org/news/2024-03-results-pollutants.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : Phys.org – https://phys.org/news/2024-03-results-pollutants.html

Tags: obtainResearchersscience
Previous Post

RFK Jr. reveals VP pick as Democrats try to sideline his campaign

Next Post

Gender employment gap narrows among people with disabilities post-COVID

Sky High Farm’s Biennial Blends Art, Agriculture and Ecological Urgency – observer.com

Sky High Farm’s Biennial Blends Art, Agriculture and Ecological Urgency – observer.com

September 1, 2025

After 150 Job Applications and Rescinded Offers, Computer Science Grads Face an Unforgiving Job Market

September 1, 2025
Proportion of US students taking chemistry fails to keep pace with other science disciplines – Chemistry World

Why Fewer US Students Are Choosing Chemistry Compared to Other Sciences

September 1, 2025
Going zero-waste for a month opened my eyes — here are 7 lessons I wish I knew sooner – VegOut

7 Eye-Opening Lessons I Learned from Living Zero-Waste for a Month

September 1, 2025
This Secret Technology Will Make The IPhone 17 Super Thin Air – VOI.ID

How This Breakthrough Technology Will Make the iPhone 17 Incredibly Thin and Lightweight

September 1, 2025
2 men shot and killed at Don Knabe Community Regional Park in Cerritos – ABC7 Los Angeles

2 men shot and killed at Don Knabe Community Regional Park in Cerritos – ABC7 Los Angeles

September 1, 2025
More drama to come after Australia, USA ignite Women’s Rugby World Cup – ESPN

More drama to come after Australia, USA ignite Women’s Rugby World Cup – ESPN

September 1, 2025
India Was the Economic Alternative to China. Trump Ended That. – The New York Times

How Trump’s Policies Disrupted India’s Bid to Challenge China as an Economic Powerhouse

September 1, 2025
Comanche Nation Entertainment closes casino near Devol – KSWO 7News

Comanche Nation Entertainment Closes Casino Near Devol in Surprising Move

September 1, 2025
White House names RFK Jr deputy Jim O’Neill as replacement CDC director – BBC

White House names RFK Jr deputy Jim O’Neill as replacement CDC director – BBC

September 1, 2025

Categories

Archives

September 2025
MTWTFSS
1234567
891011121314
15161718192021
22232425262728
2930 
« Aug    
Earth-News.info

The Earth News is an independent English-language daily published Website from all around the World News

Browse by Category

  • Business (20,132)
  • Ecology (801)
  • Economy (819)
  • Entertainment (21,699)
  • General (16,793)
  • Health (9,860)
  • Lifestyle (834)
  • News (22,149)
  • People (821)
  • Politics (827)
  • Science (16,030)
  • Sports (21,318)
  • Technology (15,800)
  • World (800)

Recent News

Sky High Farm’s Biennial Blends Art, Agriculture and Ecological Urgency – observer.com

Sky High Farm’s Biennial Blends Art, Agriculture and Ecological Urgency – observer.com

September 1, 2025

After 150 Job Applications and Rescinded Offers, Computer Science Grads Face an Unforgiving Job Market

September 1, 2025
  • About
  • Advertise
  • Privacy & Policy
  • Contact

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

Go to mobile version