Articles tagged with Wastewater
Researchers have identified over 600 small earthquakes between magnitude 2.0 and 3.8 in Ohio, Pennsylvania, West Virginia, Oklahoma, and Texas, linked to fracking operations. The study reveals that the depth of the well is a significant factor in predicting likelihood of seismicity.
A new study by Desert Research Institute researchers found that a common species of freshwater green algae can remove certain endocrine-disrupting chemicals (EDCs) from treated wastewater. The algae showed significant removal rates for three EDCs, including triclosan, in ultrafiltration water.
Two moderate-sized earthquakes in Sichuan Province caused extensive damage and injury, likely triggered by nearby fracking operations. The earthquakes coincided with injection activities at fracking well pads, suggesting a link between the two.
An international study found that wastewater treatment plants in seven European countries have varying levels of antibiotic resistance, with southern Europe showing higher rates. The study suggests that modern treatment plants are effective in removing resistant bacteria, but older or poorly managed plants may contribute to the problem.
Researchers at Tallinn University of Technology developed a method to remove antibiotic residues from wastewater using metal-doped organic aerogels. The most effective material was found to be nickel-doped aerogel, which showed excellent adsorbent properties and photocatalytic degradation capabilities.
A low-cost, non-enzymatic phenol sensor has been developed using a Ni/MWCNT electrode material, exhibiting high sensitivity, good selectivity, and stability. The sensor's potential application lies in detecting phenol in discharged wastewater, where it can provide real-time monitoring and fast response.
Researchers at RCSI are developing six prototypes to remove Contaminants of Emerging Concerns from drinking water and wastewater in rural India. The project aims to provide clean drinking water to 2.1 billion people without access to safe sources.
The journal publishes its first articles on technology, machine learning, waste water treatment, and remote sensing, addressing advances in these areas. All articles will be free to access during the first two years of publication.
A new study finds that the depth of wastewater disposal in US oil sites significantly contributes to induced seismicity. In Oklahoma, deeper disposal into the basement rock increases seismicity due to higher cumulative volume and injection rates.
Researchers at University of Pittsburgh's Swanson School of Engineering have developed a new method to treat hydrofracturing wastewater by leveraging waste heat from drilling sites. The membrane distillation technology reduces the need for fresh water and produces high-quality water suitable for agriculture, industry, and other uses.
Freshwater mussels filter water and record chemical composition in their shells, revealing elevated strontium levels downstream of fracking wastewater disposal sites. The long-term effects of fracking on sediments and aquatic life are still being uncovered.
A new study reveals that urban farmers in African cities are unknowingly spreading disease by irrigating vegetables with wastewater rich in virulent human pathogens. The risk of spreading bacteria and antimicrobial resistance among humans and animals is high, posing a significant health threat to millions of people.
Researchers developed a model to forecast man-made earthquake activity in Oklahoma and Kansas, incorporating earthquake physics and wastewater injection data. The model predicts a 32% probability of potentially damaging earthquakes in 2018, decreasing to 19% by 2020.
Researchers at Dartmouth College have characterized the phenomenon of radium transfer in hydraulic fracturing, a widely-used method for extracting oil and gas. The study found that radium present in the Marcellus Shale is leached into saline water, becoming increasingly enriched as wastewater travels through the fracture network.
University at Buffalo scientists discovered that the chemical methylene blue, commonly found in textile mill wastewater, is good at tasks associated with energy storage. The compound can capture, store and release electrons, making it a viable material for liquid batteries.
Researchers at the University of Illinois have developed a model to identify cities that can benefit from re-circulating human-waste-derived nutrients into farm fields. This approach could promote agricultural sustainability and economic independence in developing countries.
A new study found that water use for hydraulic fracturing in the US has been increasing at individual facilities, with some regions seeing a 770% rise. This trend may impact future global oil and gas development due to increased water requirements.
A Duke University study found that fracking's water use increased by up to 770% and wastewater volumes by up to 1440% between 2011 and 2016. If trends continue, the water footprint could grow 50-fold by 2030, raising concerns about its sustainability.
Researchers from Kanazawa University developed a method for rapid, high-precision on-site analysis of precious metals in wastewaters. The technique combines Liquid-electrode plasma-optical emission spectrometry (LEP-OES) with solid-phase extraction (SPE), achieving over 95% recovery of gold, palladium, and platinum.
Researchers at the University of Helsinki have developed a new method to purify nuclear waste water using electrospun sodium titanate, which speeds up the process and reduces radioactive waste. The method is based on selective ion exchange and has been shown to work like commercially produced materials.
Researchers found that exposure to fracking chemicals and wastewater at diluted concentrations spurred fat cell development, with effects seen even when samples were diluted 1,000-fold. The study used laboratory models and observed significant increases in fat cell proliferation and lipid accumulation.
A new material called C18-Mica-4 has been shown to eliminate up to 100% of organic pollutants in water, including industrial and personal care products. The study found significant correlations between pollutant properties and adsorption rates.
A multidisciplinary team of researchers found that oil and gas wastewater can be effective at suppressing dust, but it also carries high salt, organic, and radioactivity concentrations. The team recommends using alternative materials or treatment to remove contaminants before using the wastewater.
Research found that oil and gas wastewater used as a dust suppressant on unpaved roads contains harmful pollutants, including salt, radioactivity, and toxic metals. These substances can be detrimental to human health and aquatic life, potentially contaminating nearby bodies of water.
Researchers at the University of British Columbia have created a low-cost membrane that can switch between oil-removal and water-removal modes using a single electrical charge. The membrane achieved near-perfect separation of light and heavy oils from water, with an 98% purity rate.
Research at Oregon State University found that silver nanoparticles can inhibit beneficial bacteria in wastewater treatment plants, leading to excessive nutrient levels and eutrophication. The study suggests that short-term exposure studies may underestimate the potential toxicity of long-term, low-concentration exposure situations.
Researchers have identified dichloramine as the compound responsible for forming a potent carcinogen called N-nitrosodimethyalmine, or NDMA, in recycled water. The study found that minimizing dichloramine concentrations can reduce NDMA formation.
Researchers create a new 'green' material made from solid wastes and natural polymers to adsorb pollutants in wastewater and air. The hybrid material outperforms activated carbon with 94% efficiency and lower embodied energy.
Scientists at the University of Bristol have developed a method to reuse plastic waste to remove carcinogenic synthetic dyes from wastewater. The process involves transforming polystyrene into a material that can support nanoparticles, which are then used to break down harmful dyes.
A study published in Appetite found that people prefer the taste of ID-treated wastewater to traditional tap water. The researchers also discovered that women are more likely to prefer bottled water than men and that marketing efforts should focus on similarities between ID and bottled water.
A new report by the Seismological Society of America concludes that wastewater created during oil and gas production is the probable cause for a surge in earthquakes in southern Kansas. Between 2012 and 2016, six magnitude 4 or greater earthquakes occurred in the study area, with decreases in seismicity corresponding to decreases in di...
Researchers found that estrogens from treated wastewater persist in vernal pools for weeks, transforming into more potent compounds and impacting sensitive aquatic habitats. The study suggests inadequate water treatment practices may be contributing to this issue.
A new study suggests that wastewater injection depth is a critical factor in inducing earthquakes. Simulations using an advanced computer model reveal that limiting depth to 500 meters above the basement can reduce seismic energy release by a factor of 2.8.
A new study by the University of Bristol found that Oklahoma's seismicity is strongly linked to fluid injection depth. The team used a powerful computer model to examine the connections between injection volume, depth, and location, as well as geological features.
Researchers found that artificial sweeteners in wastewater can indicate contamination of groundwater with septic system pollutants. The study suggests regular inspection and maintenance of septic systems and well water testing are necessary to ensure safe drinking water.
A new Duke University study finds that radioactivity in sediments at three disposal sites is 650 times higher than normal, with conventional oil and gas wastewater contributing to the contamination. The study confirms that radionuclide accumulation occurs after 2011, when authorities limited fracking wastewater disposal.
A new study by Virginia Tech researchers found that efforts to curb earthquakes triggered by oilfield wastewater injections are not targeting the most dangerous tremblers. To mitigate large magnitude earthquakes, a larger reduction in injection volumes is needed, according to the study.
Detergent chemistry significantly impacts the removal of silver nanoparticles from laundry wastewater, with ion-exchange technology recovering up to 99% of the metal. The study's findings could help improve wastewater treatment and reduce aquatic harm.
Recent North Texas earthquakes occurred on faults inactive for at least 300 million years, supporting the assertion they were induced by human activity. The study discriminates between natural and induced seismicity using classical structural geology analysis techniques.
Researchers at the University of Southern Denmark found that widespread feminization among male brown trout in Danish streams had completely disappeared between 2004 and 2016. The improvement was attributed to better wastewater treatment practices, particularly the connection to municipal wastewater treatment plants.
Microbial fuel cells (MFCs) have been used to treat Okinawan pig farm wastewater, removing contaminants and generating electricity. The technology has shown promise in reducing the island's wastewater burden, with efficiency rates of up to 90%.
A study by researchers at the University of Waterloo found that over 30% of rural groundwater wells contained artificial sweeteners, indicating contamination from local septic systems. This suggests that human wastewater is affecting shallow groundwater in the area, posing a health risk to aquatic organisms.
Researchers have discovered a novel way to detoxify salty wastewater using bacteria that can generate electricity, producing hydrogen gas. The bacteria, found in deep-water brine pools, thrive in extreme conditions and have the potential to convert waste products into valuable chemical products.
A University of Colorado Boulder study found more than 1,800 earthquakes in southern Colorado and northern New Mexico between 2008 and 2010 were likely caused by fluids pumped deep underground during oil and gas wastewater disposal. Elevated pore pressures in the basement rock underlie the Raton Basin's oldest stratified layers.
Researchers have developed an environmentally friendly process to transform olive mill wastewater into sustainable products. The process involves embedding the wastewater in cypress sawdust, rapidly drying it, and then subjecting it to pyrolysis to produce bio-oil and charcoal pellets.
Researchers at UC Riverside found that indoor residential conservation during droughts can diminish the quantity and quality of influent available for treatment in wastewater reuse systems. This can lead to reliability issues and increased pollutants in treated wastewater, hindering its use for irrigation or other purposes.
The ITERAMS project targets significantly reducing water consumption by circulating process waters and reducing tailings waste through valorisation of the mineral matrix. The project aims to maintain Europe at the forefront in efficient water circulation and sustainable tailings utilization.
Researchers from MSU and University of Turku developed an optimized method for removing organic compounds, nitrogen, and phosphorus from wastewater using Chlorella vulgaris UHCC0027 microalgae. The treatment also produces biofuel suitable for blending with fossil diesel fuel.
A new analysis published in Science Advances found that the probability of moderate earthquakes in Oklahoma is two times higher than initially predicted, contradicting earlier predictions of reduced seismic activity. Moderate earthquakes continue to pose a significant hazard in central and western Oklahoma.
Scientists have found that human-induced and natural earthquakes in the central US share similar ground motions, allowing existing prediction frameworks to be applied to both types. This simplifies hazard assessment and could lead to improved building design and infrastructure resilience.
Researchers found high concentrations of contaminants, including endocrine disrupting chemicals and carcinogens, in sediments and pore water. The discharge of oil and gas wastewater impacted water quality on a larger scale than previously thought, with contamination detected as far away as 12 miles downstream from treatment plants.
A University of Oklahoma study reveals the complex relationship between wastewater injection and seismicity in Oklahoma. The research found that foreshocks correlated with wastewater injection rates and stress interactions between earthquakes, ultimately leading to the September 3, 2016, 5.8 magnitude earthquake near Pawnee, Oklahoma.
Researchers found that treated fracking wastewater contaminated a Pennsylvania watershed with radioactive material, salts, and endocrine-disrupting chemicals. The study suggests tighter regulations could protect the environment and human health.
Researchers found that wastewater-exposed rainbow darters had increased metabolic rates, suggesting they were under stress from environmental conditions. The presence of pathogenic bacteria in these fish was also linked to human infections such as food poisoning.
A new study reveals that 65% of global irrigated areas are impacted by urban wastewater flows, with 29.3 million hectares in countries with limited treatment exposing widespread consumer and farmer health risks. The findings call for urgent investments in improved sanitation to mitigate public health threats.
Researchers at Cornell University have developed a novel electrode material that uses bacteria to clean pollutants from wastewater. The bacteria grow on the surface of the nanofibers, producing electricity and breaking down contaminants, making it a promising technology for improving wastewater treatment.
Researchers at Empa investigate microfiber release from polyester textiles during washing, finding constant fiber quantity regardless of temperature or wash cycle duration. The study reveals a lack of effect from washing agents and detergents on microfiber release.
Dr. Satinder Kaur Brar's groundbreaking research has led to the development of a new hybrid technology that can effectively remove emerging trace contaminants from drinking water and wastewater using green chemistry principles. The technology, which combines different treatment technologies with enzymes, has been recognized for its pot...
Geologists used radioactive elements trapped in calcite crystals to create a 'clock' that measured the age of each event, revealing 13 distinct seismic events over 400,000 years. The study sheds light on the mechanics of earthquakes in intraplate faults and their relationship with human activities.
A new report suggests that changes in wastewater injection rates in disposal wells may have led to the Pawnee earthquake, the largest recorded in Oklahoma since the 1950s. The quake was triggered by wastewater produced by oil and gas drilling injected back into the ground.