Articles tagged with Wastewater
Duke University scientists have discovered high levels of ammonium and iodide in oil and gas wastewater, exceeding EPA water-quality thresholds. These contaminants can harm aquatic life and promote toxic byproducts in drinking water when mixed with chlorine.
A recent study published in HortScience suggests that nitrogen from reclaimed water can support optimal turfgrass growth. The researchers found that turfgrass responded positively to higher concentrations of nitrogen in the irrigation water, but the concentration needed was at least 5 mg·L−1.
Researchers at University of Pittsburgh have contributed three studies to a special issue of the journal Energy Technology, focusing on smart wells, wastewater management, and information gaps related to shale gas drilling. The research aims to improve extraction through wireless communication and safely reuse drilling wastewater.
Researchers at the University of Pittsburgh are exploring a new method to treat high-saline water from hydrofracturing and other processes by utilizing waste heat from thermoelectric plants. The goal is to develop a cost-effective technology that can recover clean water and reduce waste disposal costs.
Scientists developed new geochemical tracers to detect hydraulic fracturing flowback fluids in the environment. The tracers can track the presence of frac fluids and distinguish them from wastewater coming from other sources.
Scientists have developed geochemical tracers that can identify hydraulic fracturing flowback fluids in the environment. The tracers were tested at a spill site in West Virginia and a brine wastewater treatment plant in Pennsylvania, allowing for the detection of frac fluid contamination and potential risks to water supplies.
Scientists have found that discharge of fracking wastewater into rivers can contaminate drinking water supplies. Even after passage through wastewater treatment plants, halides in the wastewater can lead to toxic byproducts when treated with conventional methods.
A new solar-powered treatment process can accelerate oil sands tailings reclamation by up to 84% and reduce costs. The technology has the potential to also treat municipal wastewater and could make it safer for rivers.
Seismologists attribute the dramatic rise in earthquakes to deep wastewater injection. The Raton Basin saw a significant increase in seismicity after major fluid injection began in 1999, with 16 magnitude > 3.8 earthquakes recorded between 2001 and 2011.
The Stanford-led study synthesizes 165 academic studies and government databases to assess the environmental costs and benefits of fracking. Fracking's influence on local air pollution, earthquakes, and supplies of clean water is also examined. The study finds that oil and gas extraction can reduce water consumption compared to coal po...
A new study published in Science finds that subsurface wastewater injection is likely causing the dramatic increase in earthquakes in central Oklahoma since 2009. The research suggests that adherence to standard best practices can reduce the risk of inducing seismicity.
Research suggests that wastewater disposal can induce earthquakes tens of kilometers away from the wellbore, complicating seismic hazard assessments and maps. The study's findings have significant implications for critical structures such as dams and nuclear power plants.
Scientists at the University of Cologne have discovered a new method to produce hydrogen from water and formaldehyde. The approach can be used to break down contaminants in industrial waste water while generating hydrogen, reclaiming an important raw material.
Scientists at Helmholtz-Zentrum Dresden-Rossendorf develop sophisticated measuring sensors to improve biological treatment stages. The sensors help determine the dynamic of flow and inform treatment plants on optimal mixing strength.
Researchers at the University of Luxembourg found that gentle reminders about environmental impact and social norms led to significant reductions in towel usage. Guests used 1.6 towels per person per day when told of hotel-wide behavior, compared to one towel per person per day in rooms with previous guest information.
A CU-Boulder study reveals that palm oil wastewater is a significant source of heat-trapping methane in the atmosphere. Capturing this methane could provide a renewable energy solution, potentially meeting a quarter of Malaysia's electricity needs.
A Duke University study found that blending fracking wastewater with acid mine drainage can remove up to 100% of radium and other radioactive contaminants, making the treated water suitable for reuse in hydraulic fracturing. This process could reduce environmental risks and provide a win-win for the industry and the environment.
Researchers developed a method to feed dyed leaves to silkworms, producing colored silk fibers without harsh chemicals. The study successfully incorporated azo dyes into the caterpillars' silk, paving the way for more environmentally friendly textile production.
Researchers have designed a highly sensitive nanosensor using graphene oxide to detect extremely low levels of uranium and plutonium in nuclear waste water. The discovery has significant implications for identifying potential leaks and ensuring environmental and human health safety.
A new recycling process can extract valuable materials from wastewater containing rare earth elements (REEs), which are crucial in modern technologies. The process uses a nanomaterial to capture more than 85% of the REEs, providing a promising solution to address supply shortages and environmental concerns.
A Duke University study found elevated levels of radioactivity, salts, and metals in river water and sediments after fracking wastewater discharge. Radioactivity levels were up to 200 times greater in sediment samples collected near the facility than upstream.
A new UN-backed study reveals that treated wastewater has 'massive potential resource' globally, but data on its usage is scarce. Only 55 countries out of 181 studied have information on wastewater generation, treatment, and reuse.
Large earthquakes from distant parts of the globe are triggering tremors around US waste-fluid injection wells, according to a new study. The phenomenon could indicate critically stressed faults that may soon host larger earthquakes.
Researchers found that papyrus sedge can absorb toxic matter from abattoir effluent, including nitrogen and phosphorus ions. The study suggests using constructed wetlands with papyrus as a final treatment step to reduce untreated effluent reaching Lake Victoria.
A new study links a magnitude 5.7 earthquake in central Oklahoma to wastewater injection, destroying homes and causing widespread damage. The researchers found that the pressure increase triggered by wastewater injection led to the largest earthquake ever recorded in Oklahoma.
A new membrane developed by researchers at Wits University can effectively separate waste from water, making it suitable for treating pollutants in various processes. The technology has the potential to filter pure water from wastewater produced during mining, oil and gas exploration, and nuclear activities.
A new dynamic mathematical model estimates variation in greenhouse gas emissions in response to changes in wastewater management systems. The study provides more accurate and detailed predictions than current steady-state models, with implications for industries seeking to reduce their carbon footprint.
The symposium aims to find solutions to the increasing gap between food production and water availability. Experts will discuss ways to optimize water use in crop production, protect freshwater resources, and reuse gray water to ensure both adequate food and abundant water supplies for future generations.
Hydraulically fractured natural gas wells in the Marcellus shale region produce about 35% as much wastewater per unit of gas recovered as conventional wells. The total amount of wastewater has increased by 570% since 2004, threatening to overwhelm the region's wastewater-disposal infrastructure capacity.
The new method reduces phosphorus levels by over 80% and saves energy and waste, producing significant cost savings for municipal wastewater treatment plants. Simultaneous precipitation eliminates the need for additional chemical treatments.
New water treatment firms are developing chemical treatments and evaporators to remove contaminants from fracking wastewater, which can then be reused. The cost of disposal is spurring oil and gas companies to adopt these technologies, limiting the amount of contaminated water that reaches people, plants, and animals.
The Asian Institute of Technology (AIT) has been awarded a US $5-million grant from the Bill & Melinda Gates Foundation to develop sustainable decentralized wastewater management systems. The five-year project aims to reinvent innovative, decentralized systems for treating human excreta and wastewater in developing countries.
A by-product of biofuel manufacture can power microbial fuel cells to generate electricity cheaply and efficiently. Researchers have successfully used Distillers Dried Grain with Solubles (DDGS) as a feedstock for the bacteria, producing a reliable source of renewable energy.
A Spanish researcher proposes using urine as a CO2 absorbent, producing ammonium bicarbonate and calcium carbonate when combined with olive waste water. The mixture can absorb various grams of CO2 per liter and reduce emissions by 1% in a stable manner.
A team led by an MSU professor has created a cost-effective way to remove phosphorous from wastewater, reducing eutrophication and toxic algae growth. The new method uses nanoparticles composed of iron to efficiently absorb phosphorous, which can be recovered for fertilizer products.
The Advanced Denim process produces jeans using significantly less water, energy, and waste than traditional methods. This technology has the potential to save 2.5 billion gallons of water and eliminate 8.3 million cubic meters of wastewater annually.
Researchers at Queen's University Belfast have developed a biotechnological route to remove and recycle phosphate from wastewater. The team has discovered a physiological 'shock' treatment that significantly increases microbial uptake of phosphorus and its accumulation inside cells.
Researchers at Penn State developed a new technology combining microbial fuel cells and reverse electrodialysis to produce electricity from wastewater. The system uses an ammonium bicarbonate salt solution, allowing for energy production anywhere, not just coastal areas.
A new building-integrated aquaculture (BIAq) model aims to improve fish farming operations by combining building design, fish ecology, and aquaculture engineering techniques. The model aims to provide an affordable, holistic, and sustainable approach to indoor fish production, reducing energy costs and environmental impact.
Researchers at Syracuse University developed statistical prediction models to help utilities assess risk and identify failing pipes. The models allow for proactive maintenance and reduced costly emergency repairs.
A new University of Minnesota study reveals that even treated municipal wastewater can contribute significantly to antibiotic-resistant bacteria in surface waters. Researchers found that quantities of these bacteria were typically 20-fold higher near the site where treated wastewater was released into Duluth-Superior Harbor.
Researchers found that wastewater recycling plants emit significantly more nitrous oxide, a potent greenhouse gas, due to dense populations of bacteria. Despite this, they argue that wastewater recycling remains an essential component of urban water resources.
A national database called WATERiD will provide accurate predictions of when underground water and wastewater pipes might fail. The database, launched on Sept. 1, aims to create a single point for utilities to access relevant information and accelerate decision-making.
DANA, a hybrid system developed by Aqwise and Westt B.V., treats industrial wastewater with lower costs and environmental footprint. The technology, facilitated by EUREKA's collaborative funding model, achieves significant financial savings and greenhouse gas emissions reductions.
A team of researchers has found that residual distillation water from certain plant species can increase the yields and essential oil content of peppermint and spearmint crops. The study suggests using wastewater as a foliar spray can boost biomass production, with increased essential oil content observed in some cases.
Parasitic protozoons like Cryptosporidium and Giardia can survive water treatment systems, posing a significant risk to human and animal health. The study highlights the need for better preventive measures, including protecting water sources, monitoring water quality, and implementing control plans.
Researchers developed a planar microfluidic reactor that harnesses sunlight to break down contaminants in water using photocatalysis. The technology has shown dramatic improvements in efficiency, with plans to scale up the process for industrial water treatment applications.
Researchers in India have found that various kitchen waste water filtration systems can produce clean water suitable for agricultural or horticultural use. Ceramic microfiltration membrane systems with physicochemical treatments such as biotreatment and adsorption showed promising results, removing up to 98% of BOD and 99% of COD.
Researchers at UC discover that rabbit food can effectively reduce estrogen levels in wastewater, with a potential impact on the environment and wildlife. The study found that the rabbit food reduced estrogen hormone levels by more than 80%, making it a promising alternative for treatment.
The award recognizes the university's portable, scalable self-contained wastewater-treatment system that converts wastewater into effluent meeting EPA standards in under 24 hours. The technology has been adapted for potable water production with minor modifications.
Researchers detect five types of pharmaceuticals in Donana's waters, including anti-inflammatory drugs and hormones. The study suggests advanced technologies can remove these compounds from urban waste water.
Agricultural Research Service microbiologist Ilenys Pérez-Díaz and her colleagues discovered that certain Lactobacilli species can modify azo dyes into non-mutagenic substances. This finding has potential applications for wastewater treatment, making food-grade bacteria a promising option for cleaning up textile industry dye waste.
A study by University of Calgary researchers reveals a significant increase in female fish population and feminization of males in two Southern Alberta rivers. The presence of man-made and naturally occurring chemicals, such as synthetic estrogens and bisphenol A, is linked to the sex ratio imbalance.
A new demonstration facility for decentralized wastewater management has been opened in Jordan, developed by German-Jordanian researchers. The site aims to adapt decentralized wastewater treatment technologies to the arid local conditions and increase recycled wastewater volume by over fourfold by 2022.
Pharmaceutical manufacturing facilities are a significant source of pharmaceuticals in surface waters, according to a USGS study. Outflow from wastewater treatment plants that receive pharmaceutical wastewater had concentrations 10-1000 times higher than those without.
A new database will gather information on technologies to assess and repair the condition of buried pipes, helping utility managers make informed decisions. The database aims to provide a single point of information for utilities to select effective and cost-effective rehabilitation technologies.
The US EPA has awarded nearly $2.5 million to 11 companies to support their work in eight key environmental areas. These companies will use the additional funds to commercialize technologies such as microbial fuel cells and chromium-free coatings.
A new water treatment system, developed by Penn State researchers, utilizes discarded materials and plant communities to remove pollutants from wastewater. The system has shown to be effective in reducing pollutants by over 90% within three days, making it a promising alternative for conserving global fresh water supplies.
Researchers have discovered that traces of medicines can be found in fish swimming in treated wastewater. Elevated levels of the hormone levonorgestrel were found in fish blood, leading to infertility. The study highlights the impact of synthetic hormones on fish reproduction and calls for more environmentally friendly alternatives.
The US Army has taken delivery of the first two units of a revolutionary waste-water treatment system developed by Sam Houston State University. The system uses proprietary bacteria to clean polluted water with high efficiency and can be deployed in remote areas with minimal infrastructure.