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Latest Total organic carbon Stories

2013-04-23 14:50:43

Persistence of “urban” organics downstream favors dead-zone formation Each time it rains, runoff carries an earthy tea steeped from leaf litter, crop residue, soil, and other organic materials into the storm drains and streams that feed Chesapeake Bay. A new study led by researchers at the Virginia Institute of Marine Science reveals that land use in the watersheds from which this “dissolved organic matter” originates has important implications for Bay water...

2011-08-01 13:33:43

Studies of the probable role of organic acids in lakes indicate that power plant emissions may have had a smaller impact on lake acidity than previously assessed During the 1970s and 1980s, researchers and policymakers became increasingly worried about multiple consequences of acidic emissions of sulfur dioxide and nitrogen oxides from the stacks of power stations, and eventually they were controlled. In Europe, there was much concern about the effects on Sweden's many lakes, which were found...

2010-07-21 23:40:08

Splashing around in a swimming pool on a hot summer day may not be as safe as you think. A recent University of Illinois study links the application of disinfectants in recreational pools to previously published adverse health outcomes such as asthma and bladder cancer. Each year, 339 million visits take place at pools and water parks across the United States. Not only is swimming fun, but it's also the second most popular form of exercise in the country. Because of this, disinfection of...

2010-03-16 07:30:00

WASHINGTON and CORK, Ireland, March 16 /PRNewswire/ -- BioTector Analytical Systems, Ltd., a manufacturer of an innovative range of total organic carbon (TOC), total nitrogen (TN) and total phosphorous (TP) on-line liquid analyzers for environmental monitoring, process control and waste minimization, today announced a distribution agreement with Loveland, Colorado-based Hach Company. Hach, a leading manufacturer and distributor of analytical instruments, test kits and reagents used to...

2009-03-12 18:17:00

SUNNYVALE, Calif., March 12 /PRNewswire/ -- A newly launched Isotopic Carbon Solution for Total Organic Carbon (TOC), jointly developed by Picarro, Inc. and O.I. Corporation, (d.b.a. OI Analytical) has been awarded the Editors' Choice Silver Prize as one of the three most outstanding new products at the 2009 PITTCON conference and technical exhibition (March 8-13, Chicago, IL). The PITTCON Editors' Choice Awards are intended to recognize the best examples of innovative and creative...

2009-03-09 09:33:00

SUNNYVALE, Calif., March 9 /PRNewswire/ -- Picarro, Inc. has partnered with O.I. Corporation, d.b.a. O.I. Analytical, (Nasdaq: OICO) to develop a turnkey analyzer to measure total organic carbon (TOC) as well as the carbon stable isotope ratio (delta-13C). The iTOC-CRDS works directly with solids, liquids, sludges and slurries, and will be formally launched at the Pittcon(R) 2009 technical conference and exhibition (March 8-13, Chicago, IL). The iTOC-CRDS is an integrated, small and...

2008-11-13 12:00:18

O.I. Corporation (NASDAQ: OICO) today announced that a next-generation Total Organic Carbon Analyzer ("TOCA") is scheduled to be launched tomorrow on the Space Shuttle Endeavour to the International Space Station. OI developed the core TOCA technology for this analyzer, which will be a key component of the water recycling system that should allow the Space Station to be fully manned for the first time. Gary Erickson, Research and Development Manager for OI, commented, "The implementation...

2008-09-21 03:00:14

By Ha, Dong Yun Cho, Soon Haing; Kim, Young Kwon; Leung, Solomon W ABSTRACT: This study provides biodegradability of organics in leachate according to their molecular mass distributions (10 KDa). Organics with molecular mass values lower than 0.5 KDa were the predominant species in the raw leachate nitrate, and the aerated lagoon process was very effective in treating these highly biodegradable organics; the Fenton's oxidation process was very effective in treating not-so-biodegradable...

2008-07-02 06:00:47

By Loraine, Gregory A ABSTRACT: In this paper, components of an industrial wastewater that cause operational problems during biological treatment were oxidized by UV light and hydrogen peroxide (UV/H^sub 2^O^sub 2^). Preoxidation of wastewater was shown to remove polyvinylpyrrolidone (PVP) and ethoxylate surfactant and increase overall biodegradability. Several UV intensities and hydrogen peroxide concentrations were tested to find optimal conditions for the complete depolymerization of PVP...

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2008-04-28 14:30:00

A handful of soil is a lot like a banana, strawberry and apple smoothie: Blended all together, it is hard to tell what's in there, especially if you have never tasted the fruits before.But when you look at soil's organic carbon closely, it has an incredible variety of known compounds. And looking closely is exactly what Cornell researchers have done for the first time -- at a scale of 50 nanometers (1 nanometer equals the width of three silicon atoms). Until now, handfuls of soil humus (or...