Articles tagged with Wastewater Treatment
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A research project aims to produce a computer model for water managers to reduce energy consumption while meeting increased demand for water. The project, funded by the National Science Foundation, will help address water scarcity issues in regions like Arizona, where population growth and drought are exacerbating the problem.
Researchers developed a new technique to monitor bacterial health in wastewater treatment facilities using sensor technology. The method, called self-referencing, senses minute changes in chemistry related to bacterial health and yields results immediately.
Using two million pounds of iron, researchers improved pollutant levels by 87%, removing BOD, nitrogen, phosphorus, and colors from industrial wastewater. The low-cost iron-based method has great potential for developing countries.
Researchers have found that silver nanoparticles destroy benign bacteria used to remove ammonia from wastewater treatment systems. The presence of these particles can hinder the reproduction activity of good bacteria, potentially harming soil and food crops.
Soil scientists have created a new mathematical model that can accurately calculate the quantities of nitrous oxide produced during wastewater treatment processes like anammox and denitrification. This breakthrough aims to improve wastewater treatment effectiveness and reduce N2O emissions, a key concern for climate protection.
Perry L. McCarty's work in environmental biotechnology has led to the development of economical wastewater treatment processes, including anaerobic systems that utilize beneficial microbes. His research aims to protect ecological and drinking water resources by treating wastewater.
A new metagenomic study of activated sludge wastewater treatment processes reveals key players and mechanisms behind the process. The researchers were able to obtain a nearly complete genetic blueprint for Accumulibacter phosphatis, a bacterial species essential for removing excess phosphorus from wastewater.
Researchers found that triclocarban, used in antiseptic soap, persists in sludge and is concentrated several thousand-fold higher than in raw wastewater. The chemical's polychlorinated structure makes it resistant to degradation during wastewater treatment.
The study found that antibiotics and synthetic hormones can increase antibiotic resistance and disrupt endocrine functions. Researchers identified key metabolites from commonly prescribed medications and hormone replacement therapy, highlighting the need for optimized wastewater treatment processes to remove these compounds.
Researchers used passive integrated transponder (PIT) tags to assess fluid motion in simulated radioactive waste without sampling. The technique improved mixing technology for the Hanford Waste Treatment Plant's large-scale operation.
Penn State researchers have successfully generated electricity from domestic wastewater using microbial fuel cells, removing up to 78% of organic matter. The technology has the potential to reduce wastewater treatment costs and provide access to sanitation technologies worldwide.
A new water treatment process called activated magnetic sludge process has been introduced, which uses magnetic separation to reduce excess sludge production. The technique can treat up to 21 gallons of sewage daily without generating any excess sludge.
The Odor Index is a new tool that relates the concentration of odorants to human perception, providing a comparative scale for measuring odors. The technology has shown significant reductions in odors in wastewater treatment plants and other industries.
A portable wastewater treatment unit has been developed to treat wastewater in remote locations, using stainless steel screens and pressure filters with clay beads. The unit can treat 30,000 gallons per day of wastewater, producing partially dried sludge that can be disposed of with regular solid waste.
A new technology, InStreem™, has been successfully demonstrated at the George DeRuyter Dairy in Washington state, reducing odors and solids in waste lagoons. The system converts existing lagoons into extended aeration systems, establishing conditions favorable for both aerobic and anaerobic degradation of wastes.
The US Navy is developing a new system to treat non-oily wastewater from its vessels, eliminating costs and fines associated with discharging wastewater. The Aerated Non-Oily Wastewater Membrane Treatment System (AMTS) has shown promise in treating graywater and vacuum-collected sewage, allowing ships to remain on their stations longer.
A recent USGS study suggests that rivers, particularly the South Platte River in Colorado and Nebraska, are emitting high levels of nitrous oxide (N2O), a catalyst for ozone depletion. The study's findings indicate that N2O emissions from these rivers could be a major human-made source of N2O to the atmosphere.