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Enhanced pollutant photodegradation activity of graphitic carbon nitride on via bismuth oxyhalide graphene hybridization and the mechanism study

Researchers have developed a novel photocatalyst by combining g-C3N4 with Bi4O5Br2 and graphene, resulting in efficient degradation of pollutants. The CN/BOB-16 heterostructure exhibited superior performance, surpassing existing benchmarks, and confirmed the key role of Z-type heterojunctions in generating active species.

SourceIndustrial Chemistry & Materials·TypeExperimental study·DateOct 15, 2024

Pilot-scale reverse osmosis treatment of gold cyanidation effluent for the removal of cyanide, heavy metal(loid)s, and ionic species

Researchers found that reverse osmosis removed 99% of contaminants, including arsenic and cyanide, meeting environmental standards. This innovative method provides a scalable solution for the mining industry to improve sustainability.

SourceEscuela Superior Politecnica del Litoral·JournalCase Studies in Chemical and Environmental Engineering·TypeExperimental study·DateSep 12, 2024

Plant-inspired polymers for water purification

A German-Japanese research team developed a polymer inspired by a protein found in plants to selectively remove harmful heavy-metal ions from water. The polymer achieves high specificity and efficiency, making it a promising solution for improving water treatment processes.

SourceOsaka University·JournalNature Communications·TypeExperimental study·DateJul 29, 2024

The Clues for Cleaner Water

Researchers at Pitt and Drexel have discovered that electrocatalysts can promote chemical reactions that generate ozone in water through corrosion and solution phase reactions. This breakthrough could lead to the development of more efficient and sustainable electrochemical ozone production technologies.

SourceUniversity of Pittsburgh·JournalACS Catalysis·TypeObservational study·DateMay 6, 2024

Switch to green wastewater infrastructure could reduce emissions and provide huge savings according to new research

A new study from Colorado State University suggests that transitioning to green wastewater-treatment approaches, financed through carbon markets, could save $15.6 billion and reduce CO2-equivalent emissions by 30 million tonnes over 40 years. The research explores the potential economic tradeoffs of switching to green infrastructure an...

SourceColorado State University·JournalCommunications Earth & Environment·DateApr 15, 2024

Rice engineers propose hybrid urban water sourcing model

Rice University engineers have developed a hybrid urban water supply system that combines conventional, centralized water sources with reclaimed wastewater to save energy and reduce freshwater use. The system is also more resilient against disruptions such as hurricanes and flooding.

SourceRice University·JournalNature Water·TypeData/statistical analysis·DateJan 16, 2024

We can save lives and millions with less nitrate in drinking water

A new study by researchers at the University of Copenhagen finds that reducing nitrate levels in Danish drinking water could avoid 127 cases of colorectal cancer annually and save $300 million a year. Implementing stricter nitrate limits, such as lowering the maximum standard to 4 mg/L, can result in an additional $138 million saved.

SourceUniversity of Copenhagen - Faculty of Science·JournalScience of The Total Environment·DateNov 6, 2023

NUS scientists develop a new class of artificial water channels for more efficient industrial water purification

Researchers have created self-assembling protein-mimics that can selectivity transport water across membranes while rejecting salts, offering a potential solution to improve energy efficiency in industrial water purification. The oligourea foldamers are smaller and more stable than existing artificial water channels.

SourceNational University of Singapore·JournalChem·TypeExperimental study·DateAug 2, 2023

Regulations reducing lead and copper contamination in drinking water generate $9 billion of health benefits per year according to new analysis

A new study from Harvard T.H. Chan School of Public Health estimates that regulations reducing lead and copper contamination in drinking water generate $9.2 billion in health benefits annually, exceeding the EPA's public estimates by an order of magnitude. The analysis also reveals at least $2 billion in infrastructure benefits, bringi...

SourceHarvard T.H. Chan School of Public Health·JournalEnvironmental Research·DateMay 9, 2023

Researchers determine how to digitalize, optimize and safeguard water management in smart cities

A new study by Universitat Oberta de Catalunya researchers has proposed a network architecture and specific hardware requirements to secure the water supply chain, adapting to Industry 4.0 needs and Spanish legislation. The system includes on-site sensors, interference-free networks, data analytics processors, and AI applications.

SourceUniversitat Oberta de Catalunya (UOC)·JournalSmart Cities·DateMay 2, 2023

Acidic layer in single-walled carbon nanotubes facilitates confinement of anion impurities

Researchers at Okayama University found that an acidic adsorption layer in carbon nanotubes facilitates efficient adsorption of negatively charged nitrate anions, making the aqueous solution alkaline. This study provides a novel model for designing carbon nanotubes suitable for ion adsorption and purification.

SourceOkayama University·JournalJournal of Colloid and Interface Science·TypeExperimental study·DateOct 19, 2022

Study finds potentially dangerous levels of arsenic in California prison drinking water

A new study led by researchers at UC Berkeley found instances where arsenic levels exceeded regulatory limits for months or years at a time in the Kern Valley State Prison and nearby communities. Long-term exposure to arsenic has been linked to various health concerns, including cancers.

SourceUniversity of California - Berkeley·JournalEnvironmental Health Perspectives·TypeObservational study·DateSep 21, 2022

Gwangju Institute of Science and Technology researchers pave the way for large-scale, efficient organic solar cells with water treatment

Researchers from Gwangju Institute of Science and Technology developed a method to control active layer morphology in organic solar cells using water treatment. This approach led to more uniform thin films and higher power conversion efficiencies compared to non-treated samples. The study paves the way for large-scale, efficient organi...

SourceGIST (Gwangju Institute of Science and Technology)·JournalAdvanced Functional Materials·TypeExperimental study·DateSep 15, 2022

New photocatalytic membrane that can be cleaned using light energy

A new nanosheet-laminated photocatalytic membrane has been successfully developed by Kobe University researchers, demonstrating excellent water permeance and photocatalytic activity. The membrane's photocatalytic properties make it easier to clean, reducing fouling and increasing its potential for tackling global environmental issues.

SourceKobe University·JournalChemical Engineering Journal·TypeExperimental study·DateJul 4, 2022

UV increases risks for disinfection of drinking water treatment: Scientists provide new insight

New research reveals UV disinfection can form trihalomethane disinfection byproducts from halobenzoquinones, posing a risk to public health and the environment. The study found UV enhances THM formation yield by nearly 10 times, highlighting the need for further investigation into combined UV/chlorine processes.

SourceHigher Education Press·JournalFrontiers of Environmental Science & Engineering·TypeExperimental study·DateJun 30, 2022

PFAS chemicals do not last forever

Researchers at UC Riverside discover that adding iodide to a water treatment reactor using ultraviolet (UV) light and sulfite can destroy up to 90% of PFAS chemicals in just a few hours. This method accelerates the reaction four times, saving energy and chemicals, and enables the treatment of ten times higher concentrations of PFAS.

SourceUniversity of California - Riverside·JournalEnvironmental Science & Technology·TypeExperimental study·DateMay 20, 2022

Chlorinated water supplies don’t disturb healthy gut microbiomes in young children

A recent study published in Nature Microbiology found that chlorine water treatment does not disrupt the normal population of beneficial bacteria in children's developing gut microbiomes. The study suggests that chlorination can actually help reduce disease incidence and limit antibiotic use while keeping microbiomes healthy.

SourceTufts University·JournalNature Microbiology·TypeRandomized controlled/clinical trial·DateApr 14, 2022

Story tips: Beneath the skin, crustacean-inspired cotton, automating clean water, samples in space and capturing furnace emissions

Researchers analyzed skin cell data to identify gene expression patterns responsible for inflammation in atopic dermatitis. Crustacean-inspired cotton was found to control water flow through a special wicking mechanism. Autonomous water treatment systems were also developed to improve energy efficiency and waste reduction.

SourceDOE/Oak Ridge National Laboratory·JournalScience Translational Medicine·TypeExperimental study·DateMar 1, 2022

CityU study shows improperly discarded surgical masks threaten the marine ecosystem and food chain

A City University of Hong Kong study found that improper disposal of surgical masks can pollute over 54,800 Olympic-sized swimming pools annually with microplastics. The research also showed that microplastics accumulate in the food chain, affecting marine organisms and potentially harming higher-level species.

SourceCity University of Hong Kong·JournalEnvironmental Science & Technology Letters·TypeExperimental study·DateFeb 8, 2022

Why drinking water needs monitoring for HIV drugs

Researchers emphasize the need for monitoring drinking water for HIV medications, as they can contaminate rivers and streams through wastewater. The lack of regulation on pharmaceuticals in wastewater treatment plants poses a significant challenge in ensuring safe drinking water.

SourceUniversity of Johannesburg·JournalEnvironmental Nanotechnology Monitoring & Management·TypeExperimental study·DateNov 17, 2021

Cleaner water through corn

Researchers at the University of California - Riverside have developed an energy-efficient way to convert corn stover into activated carbon for water treatment. The process produces activated carbon that absorbs up to 98% of vanillin from water, showcasing a promising approach to combating climate change by repurposing idle resources.