TDS concentration Articles
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Polyvinylidene fluoride membranes for textile dye removal: a factorial design study
In this work asymmetric polymeric membranes were applied for colour removal of one reactive dye. The three–factors and two levels central composite design was adopted in this study where 11 experiments were carried out with a dye solution prepared in the laboratory. The three factors were polyvinylidene fluoride (PVDF) concentration, textile dye (TD) concentration and transmembrane pressure (P). ...
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Organic matter removal from saline agricultural drainage wastewater using a moving bed biofilm reactor
We investigated the effect of salinity on the removal of organics and ammonium from agricultural drainage wastewater (ADW) using moving bed biofilm reactors (MBBRs). Under the typical salinity level of ADW (total dissolved solids (TDS) concentration up to 2.5 g·L−1), microorganisms were acclimated for 40 days on plastic carriers and a stable slime layer of attached biofilm was formed. Next, ...
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Development of a total dissolved solids (TDS) chronic effects benchmark for a northern Canadian lake
Laboratory chronic toxicity tests with plankton, benthos, and fish early life stages were conducted with total dissolved solids (TDS) at an ionic composition specific to Snap Lake (NWT, Canada), which receives treated effluent from the Snap Lake Diamond Mine. Snap Lake TDS composition has remained consistent from 2007 to 2014 and is expected to remain unchanged through life of mine: chloride ...
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Application of forward osmosis in reusing the brackish concentrate produced in reverse osmosis plants with secondary treated wastewater as feed solution: a case study
This study evaluated the feasibility of forward osmosis (FO) in diluting and reusing the concentrate produced in a reverse osmosis (RO) plant in James City County, VA. Secondary treated wastewater (STW) was used as the feed solution. Findings indicated that pH had slight effects on the water flux of the FO membrane. As the concentration of total dissolved solids (TDS) in the concentrate was ...
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Seasonal losses of dissolved organic carbon and total dissolved solids from rice production systems in northern California
Received for publication February 18, 2009. Water quality concerns have arisen related to rice (Oryza sativa L.) field drain water, which has the potential to contribute large amounts of dissolved organic carbon (DOC) and total dissolved solids (TDS) to the Sacramento River. Field-scale losses of DOC or TDS have yet to be quantified. The objectives of this study were to evaluate the seasonal ...
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An Investigation of Meromixis in Cave Pools, Lechuguilla Cave, New Mexico
Abstract: Levy D B 2008 An Investigation of Meromixis in Cave Pools. Lechuguilla Cave. New Mexico International Journal of Speleology, 37 (2), 113-118 Bologna (Italy) ISSN 0392-6672. Chemical characteristics of permanent stratification in cave pools (meromixis) may provide insight into the geochemical origin and evolution of cave pool waters The objective of this study was to test the ...
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Red Rock Correctional Facility, Arizona - Case Study
In 2013, AdEdge Water Technologies was contacted by Valentine Engineering to participate in a design/build project that was ongoing at the Red Rock Correctional Facility in Eloy, Arizona. CCA is the parent company and is an operator of privately owned and operated prisons throughout the United States. CCA signed an agreement with the State of Arizona to administer up to 1,500 prisoners at the Red ...
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Municipality of Barrows, Manitoba case study
Situated some 500 km north of Winnipeg, the municipality of Barrows is home to about 300 inhabitants. Barrows has a school in the village with close to 100 students. The only available source of water supply for the municipality is an underground spring with a TDS (total dissolved solids) concentration exceeding 1900 mg/L making the water undrinkable (see Table I). At the request of John Brittain ...
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Reasons Why Enhanced Evaporation Works: Part 1
E3 Solutions is a Tampa based company focused on effective and efficient evaporation solutions. Our biowaste scientists turned innovative entrepreneurs have a combined 50+ years of experience in the wastewater management industry, and our technology reflects that. We’ve put together a three part series to help explain what exactly enhanced evaporation is, and how we have the number one cost ...
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Monitoring fuels in Stormwater - Case study
The Situation A major pipeline company has large storage tank farms throughout the Western States. The pipeline company transports, stores, blends additives, and distributes gasoline, diesel, and jet fuel to retail service stations and airports. Due to the quantity and movement of fuel at these facilities, there is always the potential for fuel spills. These facilities prevent out of compliance ...
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Treatment of dyeing effluent from tannery using membrane separation processes
Treatment of a dyeing bath of a tannery was carried out using a hybrid membrane-based separation scheme consisting of Nanofiltration (NF) followed by Reverse Osmosis (RO). Experiments were conducted using a cross-flow cell in continuous mode. The performance criteria of the separation scheme were evaluated in terms of dye concentration, Chemical Oxygen Demand (COD), Biological Oxygen Demand ...
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Electrodialysis (ED) Water Treatment Process
Electrodialysis (ED) or Electro Dialysis is a water treatment process. How does it work? What are the most suitable applications for this treatment technology? Please continue reading this article to find out. ----- WHAT IS ELECTRODIALYSIS (ED)? Electrodialysis (ED) is a membrane-based process involving transport of ions through semipermeable membranes using an applied electric field. ...
By YASA ET
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How TK‐TD and population models for aquatic macrophytes could support the risk assessment for plant protection products
This case study of the SETAC workshop MODELINK demonstrates the potential use of mechanistic effects models for macrophytes to extrapolate from effects of a plant protection product observed in laboratory tests to effects resulting from dynamic exposure on macrophyte populations in edge‐of‐field water bodies. A standard EU risk assessment for an example herbicide based on macrophyte laboratory ...
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Dissolved Solids and Water Purification
To make drinking water palatable, the level of dissolved substances (TDS) can’t be too high, but it also can’t be too low Water quality metrics are needed to ensure that surface and groundwater – common sources of water for human consumption – are free from contaminants and pollutants. The level of dissolved solids, also commonly referred to as total dissolved solids ...
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Monitoring Phenol in Water - Case Study
The Situation A plant located in the eastern United States manufactures phenolic resin for applications in plastics molding. This plant uses well water for cooling its reaction process and then discharges the water into a local creek. A leak in the reactor and associated cooling equipment would cause phenol and phenolic compounds to contaminate the cooling water. Such a leak could result in a ...
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Genwest silverhawk power plant in nevada to install brine concentrator system
The Facility The 570-Megawatt Silverhawk Power Station is a natural gas-fired combined cycle electric generating station located in Clark County 20 miles north of Las Vegas, Nevada. In order to meet the permitting requirements and conserve water, the facility uses a dry cooling arrangement. The project was constructed by Lockwood Greene acting as EPC under the project management of Pinnacle ...
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A solution to fracturing water supply and disposal issues
“Water, water, everywhere, Nor any drop to drink.” –The Rime of the Ancient Mariner, Samuel Taylor Coleridge Many topics of conversation among oil and gas industry professionals are predictable – oil price trends, the “great shift change” imperiling the available workforce, and production quotas and caps from OPEC. Yet one pressing topic among those developing ...
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Comprehensive analysis of tobacco smoke using TD–GC×GC–TOF MS with Tandem Ionisation
The hazardous constituents of cigarette smoke have attracted considerable attention lately, especially with increasing regulation around the world limiting or banning smoking in public places – and even in private cars if children are present. From an analytical perspective, however, there is much that remains to be learnt about the composition of cigarette smoke, because of its high ...
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