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1,000+ results for "Radioactive Waste"

Artificial rocks from macroplastics threaten ocean health

A new study reveals that artificial rocks from macroplastics, known as plastiglomerates, pose a significant environmental risk to coastal ecosystems. These 'rocks' are made up of plastic waste held together by coral fragments and can release toxic pollutants into the environment.

SourceKiel University·JournalScientific Reports·TypeExperimental study·DateJul 20, 2023

University of Illinois study finds turning food waste into bioenergy can become a profitable industry

A new study from the University of Illinois finds that converting food waste into energy and bioproducts can be profitable in Illinois. The study analyzes supply chain logistics and technological and economic factors to determine the feasibility of this solution.

SourceUniversity of Illinois College of Agricultural, Consumer and Environmental Sciences·JournalJournal of Cleaner Production·TypeData/statistical analysis·DateJul 11, 2023

Molecular filament shielded young solar system from supernova

A new calculation shows that a molecular gas filament protected the young Solar System from a nearby supernova explosion, allowing it to capture radioactive isotopes found in meteorites. The filament acted as a buffer, protecting the nascent Sun and helping to channel the isotopes into the forming Solar System.

SourceNational Institutes of Natural Sciences·JournalThe Astrophysical Journal Letters·TypeComputational simulation/modeling·DateJun 22, 2023

Pusan National University researchers develop new adsorbent for removing radioactive cesium ions from nuclear wastewater

Researchers at Pusan National University have developed a new adsorbent that utilizes problematic protons in acidic wastewater to enhance the removal of radioactive cesium ions. The adsorbent, potassium calcium thiostannate, shows improved capacity under strongly acidic conditions.

SourcePusan National University·JournalJournal of Hazardous Materials·TypeExperimental study·DateJun 20, 2023

Engineering: The house that diapers built

Researchers found that disposable diaper waste can replace up to 8% of sand in concrete and mortar used to build a single-story house, reducing construction costs. The study suggests using this unconventional material for low-cost housing in low- and middle-income countries.

SourceScientific Reports·JournalScientific Reports·DateMay 18, 2023

Bacteria survive on radioactive elements

Research reveals that certain bacteria can replace essential lanthanides with actinides to sustain their metabolism. The findings suggest a possible role for these bacteria in decontaminating areas contaminated with radioactive elements or separating lanthanides and actinides for analytical purposes.

SourceWiley·JournalAngewandte Chemie International Edition·TypeExperimental study·DateMay 11, 2023

Canadian e-waste has tripled, new study finds

A new study by University of Waterloo researchers found that Canadian electronic waste (e-waste) has more than tripled in the last two decades, generating close to a million tons in 2020. E-waste generation per person has increased from 8.3 kg to 25.3 kg between 2000 and 2020.

SourceUniversity of Waterloo·JournalJournal of Hazardous Materials·DateMay 8, 2023

Pusan National University researchers develop high-adsorption phosphates for radionuclide cesium ion capture

Researchers at Pusan National University have developed high-adsorption phosphates that can efficiently capture radionuclide cesium ions. These phosphates outperform standard adsorbents with record-high adsorption capacities, making them promising candidates for radioactive waste disposal.

SourcePusan National University·JournalJournal of Hazardous Materials·TypeExperimental study·DateMay 4, 2023

Converging ocean currents bring floating life and garbage together

A community science survey reveals an abundance of floating sea creatures in the North Pacific Garbage Patch, including jellyfish, snails, and crustaceans. The study found a positive correlation between plastic waste and three groups of sea creatures, highlighting the complex relationships within this ecosystem.

SourcePLOS·JournalPLOS Biology·TypeObservational study·DateMay 4, 2023

Closed loop for circular economy: new polymer recycling strategy ensures both high stability and complete recyclability

Researchers at Shinshu University have developed a closed-loop recycling process for polymers using microparticles, resulting in fully recyclable films with high mechanical stability and fracture energy. The strategy enables the reuse of polymer materials, reducing plastic waste and environmental pollution.

SourceShinshu University·JournalGreen Chemistry·TypeExperimental study·DateMar 23, 2023

Breakthrough technology transforms waste plastic bottles into polymers for lithium-ion batteries

A team of A*STAR scientists has successfully upcycled waste polyethylene terephthalate (PET) plastic into polymer electrolytes, key components for safer lithium-ion batteries. The study achieved room temperature conductivity comparable to existing commercial systems and showed promising performance in repeatedly charged and discharged ...

SourceAgency for Science, Technology and Research (A*STAR), Singapore·JournalJournal of Materials Chemistry A·TypeExperimental study·DateFeb 8, 2023

How waste-eating bacteria digest complex carbons

Researchers decipher metabolic mechanisms of Comamonas testosteroni to digest complex carbons, enabling potential for biotechnology platforms that recycle plastic waste. The study reveals a novel approach to upcycle plastic waste into industrially relevant polymers.

SourceNorthwestern University·JournalNature Chemical Biology·TypeExperimental study·DateFeb 6, 2023

Spinning food processing waste into ‘gold’

Researchers analyzed 46 waste samples and proposed production opportunities for sustainable fuels, biogas, electricity, chemicals, and organic fertilizer. The study aims to reduce food waste and its environmental impact by finding alternative uses for industrial waste products.

SourceOhio State University·JournalScience of The Total Environment·DateJan 25, 2023

Satellites can be used to detect waste sites on Earth

A new computational system detects 966 waste sites in Southeast Asia, nearly three times the number of publicly recorded sites, highlighting the need for better waste management policies. The system also reveals that 20% of detected sites are found near waterways, spilling into rivers and eventually reaching oceans.

SourcePLOS·JournalPLOS ONE·TypeObservational study·DateJan 18, 2023

What factors influence Chinese university students’ food waste behavior in canteen?

The study found that perceived behavior control, gender, monthly living expenses, BMI, mealtime, meal expectations, and food portion significantly correlate with food waste behavior among university students. Prioritizing school cafeteria management on food portions and mealtimes is crucial for reducing food waste.

SourceHigher Education Press·JournalFrontiers of Agricultural Science and Engineering·TypeSurvey·DateDec 5, 2022

Drugs from plastic waste

Researchers have developed a chemical-biological method to upcycle polyethylene waste into valuable and complex compounds of pharmacological interest. Genetically engineered fungi convert carboxylic diacids derived from PE waste into natural products, including asperbenzaldehyde, citreoviridin, and mutilin.

SourceWiley·JournalAngewandte Chemie International Edition·TypeExperimental study·DateNov 28, 2022

Hazardous flame retardant OPEs detected at higher levels than BFRs at an informal end-of-life vehicle recycling site

Researchers found emerging organophosphate esters (OPEs) at higher concentrations than legacy brominated flame retardants (BFRs) in settled dust from informal end-of-life vehicle recycling sites in Vietnam. Chlorinated OPEs were specifically identified as a major contaminant, possibly released from vehicle upholstery and fabrics.

SourceEhime University·JournalEnvironmental Pollution·DateNov 7, 2022

PPE can be recycled to make stronger concrete

Researchers at RMIT University developed a method to recycle disposable PPE into stronger concrete, increasing strength by up to 22% and improving resistance to cracking. The study aims to create a circular economy approach for healthcare waste, reducing landfill waste and creating valuable resources.

SourceRMIT University·JournalCase Studies in Construction Materials·TypeExperimental study·DateAug 24, 2022

Compost to computer: Bio-based materials used to salvage rare earth elements

Penn State researchers have developed a method to extract valuable rare earth elements like neodymium from electronic waste using bio-based micro- and nanoparticles created from organic materials. This process can efficiently separate metals from refuse, providing a more sustainable solution than traditional mining methods.

SourcePenn State·JournalChemical Engineering Journal·TypeExperimental study·DateAug 19, 2022

Sponges “sneeze” to dispose of waste

Researchers found that sponges release mucus to unclog their internal filter systems, which also serves as a food source for fish. The study published in Current Biology highlights the unique adaptation of sponges to manage their waste and environment.

SourceCell Press·JournalCurrent Biology·DateAug 10, 2022

Radiation for responsible recycling: A distributed, microwave-based method to recycle batteries

A new distributed recycling system using microwave irradiation recovers 97% of manganese oxide and zinc from spent alkaline batteries, outperforming conventional methods. The system's potential to reduce annual energy consumption and greenhouse gas emissions in Japan is estimated at 26,500 GJ and 1.54 Gg-CO2 eq, respectively.

SourceRitsumeikan University·JournalResources Environment and Sustainability·TypeExperimental study·DateJul 7, 2022

Producers and consumers must share burden of global plastic packaging waste

The study reveals that the U.S., Brazil, and China are top suppliers of global plastic packaging waste, with North and South America responsible for most production and consumption. The researchers emphasize the need for producers and consumers to share responsibility and costs to reduce plastic use.

SourceUniversity of Illinois College of Agricultural, Consumer and Environmental Sciences·JournalJournal of Industrial Ecology·TypeData/statistical analysis·DateMay 26, 2022