nitrogen analyzer Articles
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Understanding Intellidilution for Use with the Torch High Temperature Combustion Analyzer
Introduction The Torch is a High Temperature Combustion (HTC) Analyzer that utilizes a patent pending Static Pressure Concentration (SPC) technology for the analysis of carbon and nitrogen. The Torch Analyzer contains a built in autosampler with three vial rack options and PC driven controls. Automated calibration and Intellidilution, which automatically dilutes over-range samples to within the ...
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Chemiluminescence detection for nitrogen containing compounds compared to other approved techniques
Abstract Nitrogen monitoring is important for process control, regulations, and economic reasons. There are several techniques that can be used to monitor nitrogen, some of which can be time consuming, labor intensive, and may have waste disposal concerns. This study examines using a high temperature combustion (HTC) Total Organic Carbon (TOC)/Total Nitrogen (TN) Analyzer with chemiliumunescence ...
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French vertical-flow constructed wetlands in mountain areas: how do cold temperatures impact performances?
The French version of vertical-flow constructed wetlands (VFCWs) is characterized by treating directly raw wastewater on a first-stage filter. VFCW is a well developed technology with more than 3,500 plants in operation in France. However, VFCW performance may be affected under the low temperatures reached in mountain areas during winter. The effect of cold conditions over 12 plants, ranging ...
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Microbial characteristics of a CANON reactor during the start-up period seeding conventional activated sludge
An up-flow oxygen-controlled biofilm reactor filled with volcanic filter was used for a completely autotrophic nitrogen-removal over nitrite (CANON) process. The reactor was successfully established by seeding conventional activated sludge at ambient temperature without additional biomass inoculation. An average total nitrogen (TN) removal rate of 1.1 kg·(m3 d)−1 was achieved ...
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Evaluation of undersized bioretention stormwater control measures for treatment of highway bridge deck runoff
Two grassed bioretention cells were constructed in the easement of a bridge deck in Knightdale, North Carolina, USA, in October, 2009. One was intentionally undersized (‘small’), while the other was full sized (‘large’) per current North Carolina standards. The large and small cells captured runoff from the 25- and 8-mm events, respectively. Both bioretention cells employed average fill media ...
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Complete online monitoring solution for Waste Water Treatment Plant
Due to the increasing number of requests for the monitoring of waste water treatment plant atmosphere, Chromatotec® has designed a specific analytical solution for sulfur and nitrogen compounds analysis. For more than 25 years, Chromatotec® has proven its value and expertise in measuring and recording sulfur concentrations in waste water treatment plant. Chromatotec® has completed ...
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The Renovation Project of Changsha Hazardous Waste Disposal Center was Completed
In order to relieve the pressure of hazardous waste disposal in the whole Hunan Province, Changsha Hazardous waste Disposal Center has added a 100 tons/day hazardous waste incineration disposal line. With the original incineration line of 65 tons/day, the total disposal capacity is up to 165 tons/day, making it the largest hazardous waste disposal center in Hunan Province. In this way, the ...
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PureAire Oxygen Analyzers & Oxygen Monitors for Nitrogen Generators
Nitrogen has many uses in industrial applications where oxidation would be undesirable. From carbonizing beer to preserving food, reducing fire danger, and cleaning equipment, nitrogen is a safe, inexpensive gas. For companies that need a steady supply of nitrogen gas, nitrogen generators work well. Learn about the uses of nitrogen generators and why you should use oxygen monitors in environments ...
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Nitrogen generators in Japan
Many laboratories in Japan use nitrogen gas for a variety of purposes. If your laboratory requires nitrogen gas for analyses such as LC-MS, ELSD or Sample Evaporation, one of Peak Scientific’s nitrogen gas generators could be the perfect fit for your lab. If you are already using nitrogen gas in your laboratory in Japan it’s likely that this will be supplied via gas cylinders. Gas ...
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FAQ Corner – Teledyne Hastings Instruments at Pittcon 2013
It’s hard to believe that it is now March, which means that Pittcon 2013 is right around the corner. Teledyne Hastings Instruments will have Applications Engineers and representatives in attendance to answer all of your mass flow and vacuum instrumentation questions. Pittcon is an annual conference on laboratory science that is organized by The Pittsburgh Conference on Analytical ...
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Agenda 1 - Case Study
Name: Stephen Botfield Job Title: Chromatography Team Leader Company: Agenda 1 Stephen Botfield with his N118LA nitrogen generator Contract Lab analyses with Peak on-site gas generators Agenda1 is a Specialist Contract Research Organization working primarily with the Pharmaceutical, Healthcare, Medical Device and Nicotine industries, offering support in many aspects of analytical ...
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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 ...
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Using Mass Spectrometry to Quantify Nitrogen Pollution in Coastal Ecosystems
Pollution in coastal ecosystems is becoming increasingly problematic, causing harm to animals, humans, and the environment. It destroys animal habitats, results in bacterial and viral pathogens that cause multiple illnesses, and can reduce economic growth along coastal regions. Nitrogen (N) containing species such as nitrates or ammonium can be highly detrimental to coastal marine ecosystems. ...
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Introducing a New ASTM Method for the Determination of Total Nitrogen, and TKN by Calculation, in Water Samples
The USEPA Clean Water Act (CWA) requires national approval for all methods used for CWA compliance. There are approved methods for the determination of inorganic nitrogen (NO3-N, NO2-N, and NH3-N), and for organic nitrogen (TKN – NH3-N)2. There are no EPA approved methods for the determination of total nitrogen although it is a required parameter in many USEPA permits, including monitoring ...
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Mechanism studies on nitrogen removal when treating ammonium-rich leachate by sequencing batch biofilm reactor
The nitrogen removal mechanism was studied and analyzed when treating the ammonium-rich landfill leachate by a set of sequencing batch biofilm reactors (SBBRs), which was designed independently. At the liquid temperature of (32 ± 0.4)°C, and after a 58-days domestication period and a 33-days stabilization period, the efficiency of ammonium removal in the SBBR went up to 95%. Highly frequent ...
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Effects of the combination of aeration and biofilm technology on transformation of nitrogen in black-odor river
Excess nitrogen in urban river networks leading to eutrophication has become one of the most urgent environmental problems. Combinations of different aeration and biofilm techniques was designed to remove nitrogen from rivers. In laboratory water tank simulation experiments, we assessed the removal efficiency of nitrogen in both the overlying water and sediments by using the combination of ...
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Characteristics and indications of hydrogen and oxygen isotopes distribution in lake ice body
Stable isotopes have been used to identify the characteristics of precipitation, evaporation, basin hydrology, and residence times. However, lakes in the cold regions are usually covered by ice for 5–6 months. To get a better understanding of stable isotopes characteristics and indications in lake ice bodies, ice and water were sampled during the icebound season in both the ice and water ...
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Assessment of a rainwater harvesting system for pollutant mitigation at a commercial location in Raleigh, NC, USA
Low Impact Development (LID) and Water Sensitive Urban Design have as one of their tenets the use of rainwater harvesting (RWH) systems to provide water for use on site. Historically implemented in arid or semi-arid regions, RWH has recently surged in popularity in more humid regions, such as the southeastern USA, due to increased interest in water conservation during severe drought conditions. ...
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FPI Contributed to Water Environment Monitoring during Hangzhou 2022 Asian Games
In preparation for the upcoming Hangzhou 2022 Asian Games, Hangzhou Municipal Bureau of Ecology and Environment organized an environmental quality assurance drill in Hangzhou. More than 80 participants attended this event. The objective was to strengthen the teamwork and operational capabilities of teams during unexpected environmental emergencies. After predicting related environmental emergency ...
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Use i-FlowLab as your centralized gas source
Why buy bulk nitrogen when you can make your own? Summary For the last 20 years, Peak Scientific has been specializing in the development, production, sales and service of laboratory gas generators. As an international company with operations all over the world, Peak Scientific has over 18 global offices and a direct local presence in over 20. This includes substantial operations across North ...
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