Articles tagged with Water Treatment
A new UN report reveals that poor water quality is closely linked to poverty and gender inequality in the Global South. The study finds that 84 countries face a combination of unsafe drinking water, limited financial resources, and gender inequality, affecting nearly 2 billion people.
Researchers found that treated wastewater can safely recharge coastal aquifers, stabilizing water supplies. However, higher-quality treated wastewater is needed to minimize impacts on groundwater quality.
Researchers at the University of Houston have developed an AI-driven framework to extract and analyze historical flood insurance maps, uncovering significant changes in flood hazard areas. The study reveals that flood risks have expanded in two areas and reduced in one, with critical consequences for resilience and exposure.
A new tool estimates that global sewer systems emit 1.18 to 1.95 million tons of methane annually, contributing to global warming and climate change. The study confirms that urban sewers are a quantifiable source of methane emissions, highlighting the need for their inclusion in greenhouse gas accounting.
Researchers created a novel material by converting microalgae biomass into biochar and modifying it with amine functional groups, producing hybrid filters with enhanced purification performance. The new membranes achieved better pollutant rejection and improved resistance to fouling.
A new study presents a framework combining biochar engineering with artificial intelligence to design next-generation materials tailored for specific pollutants. The work highlights how advanced data-driven approaches can accelerate the development of sustainable water treatment technologies.
Researchers developed a solvent-free method to transform biochar into a hydrophobic material that repels water and absorbs oil. The material, created through mechanochemical functionalization, was applied to hemp fibers, providing strong water repellent properties while allowing oil absorption.
A UBC-led global review found water-quality impacts from wildfires often emerge months or years later, with contamination intensifying over time. The study highlights the need for long-term fire retardants and preparedness planning to protect drinking water sources in fire-prone provinces.
Nanobiochar is an engineered carbon material derived from biomass with increased surface area, reactivity, and environmental functionality. It enhances soil quality, binds pollutants, retains nutrients, and supports beneficial microbial communities.
Emerging microbially-powered technologies can convert up to 35% of wastewater's chemical energy into electricity and extract valuable nutrients. This approach could power agriculture, global sanitation and its own treatment, while reducing pollution and overcoming regulatory obstacles.
Researchers developed a machine learning-guided strategy to design advanced biochar materials that remove phosphorus efficiently while lowering treatment costs. The study provides a practical pathway for restoring eutrophic waters at large scale.
Researchers explore how METs convert organic waste into electricity, fuels, fertilizers, and usable water. Pilot deployments demonstrate its potential to reclaim energy from 359 billion cubic meters of wastewater annually.
Scientists at the University of Chicago have created Prussian blue analogs that can achieve 99.9% lithium purification, opening up new opportunities for separating industrial waste ions from environmental streams. The unique structure of Prussian blue analogs allows for selective filtering and purification.
A joint study by several institutions analyzed the relationship between climatic conditions, Legionella presence, and Legionnaires' disease cases in Catalonia. The results show that rising temperatures create ideal conditions for Legionella to multiply, increasing disease incidence.
A new study has identified the power of influencer marketing in overcoming psychological resistance to recycling tap water. The research found that sensory and emotional content on Instagram is more effective than rational arguments in encouraging sustainable consumption, making recycled tap water more appealing through mental imagery.
Scientists develop ultra-selective crystalline membranes to recycle polluted textile wastewater and improve pharmaceutical medicine purity. The technology could significantly reduce energy consumption, enabling large-scale water reuse in industries.
Researchers have discovered key design principles for ozone-generating catalysts, which can replace hazardous and carcinogenic chlorine in water treatment. This breakthrough could revolutionize water sanitation practices by providing a safer and more sustainable alternative.
Researchers analyzed 1,240 wastewater samples from 351 cities worldwide and discovered latent antimicrobial resistance genes. The study highlights the need for broader surveillance of resistance in wastewater to curb future pandemics.
Researchers at Rice University have developed lab-grown diamond coatings that can naturally resist scale formation without constant intervention. The nitrogen-terminated diamond surface accumulated significantly less scale than other surfaces, making it a promising anti-scaling material for water desalination and energy systems.
Researchers developed a biochar-based material that dramatically improves nitrate removal from agricultural soils and water, maximizing both nitrate adsorption and ammonium retention. The optimized composite achieved nitrate reduction rates as high as 71 percent and increased ammonium retention by 53 percent compared to biochar alone.
Researchers developed a gravity-driven biochar microreactor from rattan, achieving ultrahigh flux and complete degradation of common pollutants. The system activated peroxymonosulfate through a non-radical pathway, with boundary-like defects as primary active sites.
Researchers at Seoul National University of Science and Technology have discovered fluorinated covalent organic polymers (FCOPs) that can remove 67.3% of beta-blockers like atenolol and metoprolol within the first minute. The FCOPs' strong adsorption performance is attributed to their rich structure, which enables multiple synergistic ...
A new review highlights how biochar can capture and reduce nitrate contamination in groundwater, agricultural soils, and wastewater. Biochar offers the advantage of being renewable, affordable, and adaptable to different environmental conditions, with removal efficiencies above 80-90 percent in some cases.
Researchers analyzed 11 international constructed floating wetlands projects and found that they can be a competitive solution for improving water quality, especially for nitrogen removal. The cost of removing nitrogen was consistently cheaper than phosphorus, making floating wetlands a more economical option over time.
Researchers developed a portable test to detect miniscule levels of PFAS in water, with the potential to distinguish between different types of contaminants. The new sensor can measure PFAS present at 250 parts per quadrillion, giving utility in monitoring drinking water for toxic chemicals.
The Rice WaTER Institute hosted the Water Nexus Conference 2025, bringing together industry, policy, and research experts to discuss integrated approaches for safe and reliable water systems. Key findings include the need for innovative technologies, capital structuring, and operational efficiency to close the growing funding gap in wa...
The Trusted Tap project enables households to monitor their tap water quality using commercially available filters and sending them to Washington University in St. Louis for analysis. This allows households to receive guidance on next steps if contaminants are detected, promoting safe drinking water for all Americans.
Researchers have developed a low-cost material that can clean antibiotics out of water, using steel sludge as a valuable resource. The biochar breaks down tetracycline through chemical reactions, removing over 85% in just two hours.
Recent physicochemical technologies for PFAS removal have been summarized in a comprehensive assessment, offering guidance for sustainable solutions. The methods are capable of breaking PFAS's strong carbon–fluorine bonds, achieving removal rates exceeding 90%.
Researchers have developed a smart hydrogel surface that can instantly recognize whether it's in contact with oil or water and switch its behavior to separate the two. The surface achieves a record-breaking separation speed of 17,750 liters per square meter per hour, three to five times faster than most current membranes.
Researchers at Rice University developed a mechanistic model to simulate how oxidants and pollutants move through and react inside catalytic membranes. The framework identifies the ideal range for catalyst loading and introduces new performance metrics to improve membrane design.
This book presents innovative nanomaterials for efficient pollutant removal from wastewater, reducing energy consumption and promoting eco-friendly treatment outcomes. It explores emerging trends and future directions in nanotechnology-based purification, providing practical insights for researchers and professionals.
Worcester Polytechnic Institute has received a National Science Foundation grant to study an electrochemical system for removing insoluble mineral deposits in water treatment. The goal is to develop a lower-cost, environmentally friendly system that can selectively remove scale-forming cations and prevent the buildup of harmful minerals.
A new membrane design mimics biological systems, allowing for selective control of chemical transport. The system doubles potassium ion flow with a 1% increase in lead ions, opening possibilities for efficient water purification and material extraction.
A new tool helps understand original landscape functioning and supports current land use strategies by generating realistic drone footage of past landscapes. The study uses AI to create photorealistic depictions of the Great Hungarian Plain before water regulations.
A team of Korean researchers has successfully recreated a golden fiber akin to that of 2,000 years ago using the pen shell cultivated in Korean coastal waters. The breakthrough reveals the scientific basis behind its unchanging golden color and demonstrates the potential of eco-friendly materials.
Researchers at Tohoku University have developed a novel oxidation process using sonicated carbon nanotubes to remove industrial and municipal pollutants from contaminated water. The nonradical pathway achieves unprecedented removal rates within five minutes, targeting distributed water sources.
A breakthrough in wastewater treatment uses bismuth ferrite to degrade reactive dye KN-R with high efficiency, outperforming traditional methods. The material's excellent recyclability and dual-action mechanism make it an eco-friendly solution for environmental applications.
The team developed a demonstrator to optimize water treatment plant operation through full-scale tests at CIRTESU. The system simulates processes, measures water velocity and turbulence, and analyzes mixing effects.
Researchers at Rice University have created a scalable, low-maintenance desalination system that harnesses sunlight and recycles heat for a steady supply of fresh drinking water. The new technology, STREED, can handle high-salinity brines without significant decreases in water production or quality.
A team of scientists has developed a new method for desalination that uses liquid tin to simultaneously purify water and recover valuable metals. The process, powered by concentrated solar energy, can transform desalination brine into a valuable resource.
A new study from UMass Amherst found significant variability between at-home water testing kit abilities to detect contaminants. Single-parameter tests generally had more accurate results than multi-parameter ones, but users should interpret the results with skepticism, especially if testing for high levels of metals.
Researchers discovered how certain bacteria breathe by generating electricity, using a natural process that pushes electrons into their surroundings. This finding could enable new developments in clean energy and industrial biotechnology.
A study found DDT residues in trout from Canadian lakes, with levels up to ten times the recommended safe limit. The persistence of these residues poses a risk to wildlife that consumes the fish.
Arup K. SenGupta, a renowned water scientist at Lehigh University, has been honored with the ASCE Freese Award and Lecture for his pioneering work in ion exchange science and technology. He will present on 'Development and Global Application of Hybrid Ion Exchange Processes' during the 2025 World Environmental & Water Resources Congress.
Researchers found that inactive amines used in herbicides could be more important nitrosamine precursors than previously thought, potentially posing serious health risks even at low concentrations. The study suggests shifting trends in herbicide formulation and use necessitate closer examination of these chemicals
Researchers developed an innovative adsorbent that selectively removes perchlorate from water with high efficiency and selectivity. The new adsorbent's mechanism involves unconventional hydrogen bonding and hydrophobic cavities, allowing it to effectively remove perchlorate even at high pH values.
Researchers developed biodegradable bamboo drinking straws with high tensile strength and flexibility. The new straw material absorbs less water than paper straws and retains greater wet strength, making it a cost-effective solution to plastic pollution.
Researchers at Texas A&M University have developed a non-toxic coating that can reduce the flammability of cotton using a single step. The technology uses a polyelectrolyte complex coating and has been optimized for scalability and efficiency, making it suitable for industrial applications.
A new report assesses water resources in the southern US states, finding that forestry best management practices can mitigate climate and land use effects on water quality. The study projects future scenarios of water stress due to extreme precipitation events, emphasizing the importance of adaptive management.
A new study by the University of Minnesota and the Minnesota Department of Natural Resources found high concentrations of neonicotinoids in some ground and surface water sources, including natural springs. This contamination can affect drinking water quality and organisms in streams fed by those springs.
The partnership aims to develop modular autonomous water treatment and reuse processes, leveraging the expertise of both institutions. Rice students will engage in educational and research initiatives driven by real-world needs, enhancing their knowledge and skills.
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.
Researchers found that stored human urine had little impact on soil bacterial communities, increasing nitrifying and denitrifying groups compared to synthetic fertilizers. The study suggests that recycled urine could enhance agricultural sustainability, reduce wastewater pollution, and decrease reliance on synthetic fertilizers.
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.
A study by UNESP found that smoke from two concentrations stimulates germination in 32% of plant species, with some grasses growing faster. The results could aid restoration strategies for degraded areas and offer a competitive advantage to certain Cerrado species after fires.
Researchers believe a hydraulic lift system could have been used to raise and lower building stones, while water treatment facilities would have filtered sediment from the water. The discovery provides new insights into the construction of ancient Egyptian pyramids.
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.
Researchers found arsenic treatment media in 71% of tested homes and water softener resin in 84% of homes with water softeners, posing potential health risks to users. The study highlights the need for further research and recommends installing a post-treatment sediment filter to capture escaping media.
Households are willing to pay $156.84 annually for targeted home systems to remove PFAS, which is less than the cost of municipal-level treatment. Under-the-sink reverse osmosis filters are estimated to have a yearly total cost of around $100, including maintenance.