Online Metal Monitor Articles on Environmental XPRT

Wastewater Metals Removal

Industrial Wastewater Treatment Success Stories Wastewater Treatment Metals Removal Ton Nerve Gas Agent Container Rinse Waters ...

May 7, 2007

By Integrated Engineers Inc.

Monitoring Arsenic in Drinking Water

A Cogent OVA5000 online Heavy Metal analyser is being used to ensure compliance with national and company standards for the concentration of arsenic in drinking ...

Jun. 16, 2010

By Modern Water - Monitoring Division

Monitoring - Pollution Prevention Guidelines

Introduction Pollution Prevention Guidelines to provide technical advice and guidance to staff and consultants involved in pollution-related projects. The guidelines represent state-of-the-art thinking on how to reduce pollution emissions from the production process. In many cases, the guidelines provide numerical targets for reducing pollution, as well as maximum ...

Jan. 1, 1998

By The World Bank

Improved sensitivity to heavy metals in the bioluminescence assay using alternative salt solutions

Introduction The marine bacterium Vibrio fischeri is widely used for the toxicity assessment of environmental samples. The toxicity is measured in a medium containing 2% NaCl. When the bacteria are exposed to toxic compounds, the light production is inhibited. Toxicity values are obtained after 15 and 30 minutes exposure and expressed as EC50 values, the effective concentration causing 50% loss ...

Apr. 1, 2015

By microLAN B.V.

Elemental composition of ambient aerosols measured with high temporal resolution using an online XRF spectrometer

Markus Furger1,*, María Cruz Minguillón2, Varun Yadav3, Jay G. Slowik1, Christoph Hüglin4, Roman Fröhlich1, Krag Petterson3, Urs Baltensperger1, André S. H. Prévôt1 1Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232 Villigen 5 PSI, Switzerland 2Institute of Environmental Assessment and Water Research (IDAEA), Consejo Superior de ...

May 23, 2017

By Cooper Environmental Services

Success of Onlin Leads to Closing for Wastewater 2 Process Control of Consent Order Treatment Plant

In 2003, Plant City, a small Florida city of 30,000 residents, faced a very big problem. The Florida Department of Environmental Protection (FDF.P) determined that the city's wastewater treatment plant was not consistently operating within its permit limits, and placed it under a consent order. Plant City is a highly industrialized area. "Our industrial loading is very diverse and includes metal ...

Jan. 1, 2013

By Applied Spectrometry Associates (ASA Analytics)

The challenges and benefits of local air quality monitoring

A new generation of air quality monitors is now being offered to provide localised, real-time air quality readings – but the potential benefit is only just starting to be realised. It is generally accepted that whilst measurements from air quality reference stations are highly accurate, they are not sufficiently location-specific. Key pollutants – such as NO2 and PM2.5 ...

Oct. 12, 2016

By AQMesh

Flood alert and remote monitoring of water reservoirs and rivers

River flood alert and water reservoir managements are global growing requirements. SolidAT offers a full or partial solution (according to the customer's requirements) that can save lives and damage to property inflected by river floods. Moreover we provide real time water reservoir level and capacity. Awareness of governments and municipalities world wide is growing. Below is described a case ...

Sep. 7, 2009

By Solid Applied Technologies Ltd. (SolidAT)

Field monitoring and numerical modeling as tools in effect-evaluation of waste heat and chlorination byproducts via cooling water discharges

Power plants and other industrial facilities apply cooling water to remove waste heat from their condensers and heat exchangers. These industries are obliged to predict the thermal and environmental effects on the water bodies on which the discharge takes place in order minimize negative impact on aquatic organisms. The general approach of EC Water Framework Directive acquires the evaluation of ...

May 25, 2010

By Sweco Nederland BV

Municipal Waste Water

This article shows the application of an Cogent Environmental online heavy metal analyser at a municipal waste water treatment ...

May 19, 2010

By Modern Water - Monitoring Division

OVA5000 used to gather river quality data in Greece

Cogent Environmental, in collaboration with its Greek partner, has recently completed a successful installation of one of its online heavy metal analysers, the OVA5000, in a remote location in the Amvrakikos Kolpos region of Greece. Cogent Environmental’s capabilities Cogent Environmental Ltd specialises in the development of online systems for monitoring heavy meals, ...

Jun. 25, 2010

By Modern Water - Monitoring Division

Mercury Removal from Nerve Gas Ton Container Rinse Waters

IE was retained by a United States Army subcontractor to perform a process determination with analytical verification for the treatment of the rinse water from decontaminated nerve gas agents. The Pentagon Munitions Deconstruction Committee (PMDC) fully reviewed and approved the process developed. The wastewater was generated from the rinsing of 2,000-pound (ton) containers in a punch/drain/rinse ...

Jan. 29, 2009

By Integrated Engineers Inc.

ppb Dissolved oxygen measurement

Dissolved oxygen (D.O.) measurement is one indicator of water quality because oxygen is a common element contributing to corrosion reactions. This corrosion reaction provides the need for low level D.O. control since dissolved oxygen is responsible for costly replacement of piping and equipment by corrosive attack on metah. what is Dissolved Oxygen? Dissolved axygan (D.O.f is the ...

Jan. 1, 2005

By IC Controls Ltd.

Latest analytical technology ensures biogas efficiency

Anaerobic Digestion (AD) relies on the ability of specific micro-organisms to convert organic material into a gas that can be used to generate electricity. However, these bacteria require specific conditions if they are to function effectively and instrumentation specialist company HACH LANGE has developed a range of online, portable and laboratory instruments that have enabled a large number of ...

May 25, 2012

Organics in boiler water condensate

With the wide use of high efficiency boilers and current high-pressure boilers in industry today limiting condensate analysis to the more traditional parameters can result in very expensive repairs. Condensate return should be the highest quality least expensive water that most systems can generate. Boiler operators do not want to lose this or have it contaminated. Condensate return analysis has ...

Nov. 17, 2008

By LAR Process Analysers AG

Improving steel production processes case study

SmartScan 50 improves efficiency of steel manufacturing in Gujarat district, India. The steel corporation of Gujarat is India's leading manufacturer of metal products. The company produces hot and cold steel rolls and uses state-of-the-art technology in its plant to ensure high quality products to its clientele around the globe. The problems The hot and cold steel rolls ...

Mar. 1, 2004

By Solid Applied Technologies Ltd. (SolidAT)

Determination of mercury with on-line addition of stannous chloride uUsing an axial ICP-OES

Mercury is one of the most toxic heavy metals in the environment. It is therefore important to routinely monitor the Hg level in many types of samples. The US EPA approved methodology for the determination of Hg uses the cold vapor technique with stannous chloride as the reducing agent1. This methodology is applicable to Hg determinations in a range of waters (drinking, ground, surface, sea and ...

Nov. 24, 2008

Triad expedites brownfields redevelopment in Fairbanks

The Fairbanks North Star Borough (FNSB) used Triad in 2006-2007 to assess environmental conditions at a municipal property along the Chena River in Fairbanks, AK. FNSB accelerated the site investigation as part of a brownfields assessment grant received from the U.S. EPA in 2005. Low-level contamination had been identified onsite in past investigations, but its extent and impact on future ...

Jan. 1, 2009

By USEPA - Technology Innovation and Field Services Division (TIFSD)

Integrated process control for recirculating cooling water treatment in the coal chemical industry

This work focused on the integrated process of the recirculating cooling water (RCW) treatment to achieve approximate zero emission in the coal chemical industry. The benefits of fractional and comprehensive RCW treatment were quantified and qualified by using a water and mass balance approach. Limits of cycle of concentrations and some encountered bottlenecks were used to ascertain set target ...

Jan. 1, 2011

By IWA Publishing

Quadrasperse Quadpolymer solves major fouling problem at large Gulf Coast Petrochemical Plant

Background As a result of poor results with a previous water treatment supplier, ChemTreat was given the opportunity to turn things around in a large, open recirculating cooling system for a Gulf Coast chemical plant. The cooling system serviced a light olefins unit with multiplestage, cracked-gas compressor after-coolers operating at a high skin temperature. At a maximum skin temperature of ...

Oct. 9, 2014

By ChemTreat, Inc.

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