TN Water Analysis

Monitor Total Bound Nitrogen Reliably

What is Total Bound Nitrogen (TN)?

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Total Bound Nitrogen (TN) refers to the total pollution of water by nitrogen compounds, making it an essential analytical parameter for water quality. Specifically, TN is measured in mg/l and includes various forms of nitrogen pollutants, such as ammonia, ammonium salts, nitrites, nitrates, and organic nitrogen compounds. By consistently monitoring TN water analysis, industries can gain deeper insights into water quality and ensure compliance with environmental standards. As a result, this helps protect both aquatic ecosystems and human health.

Why is it Important to Monitor Total Nitrogen in Water and Wastewater?

Monitoring TN in water and wastewater is especially crucial for maintaining a balanced ecosystem. While it is true that nitrogen is a natural and essential nutrient, excessive nitrogen discharges from industries can trigger harmful algal blooms, ultimately leading to eutrophication. Consequently, this process depletes oxygen levels and poses a significant threat to aquatic life. Therefore, controlling nitrogen concentrations through TN water analysis in public water sources is vital for preserving water quality and ensuring that ecosystems remain healthy and sustainable.

Furthermore, monitoring TN in wastewater effluent helps industries discharge at compliant levels. Not only does this safeguard the environment, but it also ensures regulatory compliance, thereby helping industries avoid fines and environmental damage. Since nitrogen-based pollutants, such as ammonia, ammonium salts, nitrate, nitrite, and organic nitrogen compounds, are common in industrial effluents, real-time TN water analysis becomes even more essential. Thus, consistent TN monitoring plays a pivotal role in responsible wastewater management and regulatory adherence.

OTHER WATER APPLICATIONS

BOD
COD
TN_b
TOC

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Our high temperature devices of LAR water analyzers are applicable in a variety of applications.

	Organic Nitrogen	Ammonia-Nitrogen (NH₄-N)	Nitrate-Nitrogen (NO₃-N)	Nitrite-Nitrogen (NO₂-N)	Particles
Kjeldahl Nitrogen TKN EN 25663 (1993)	X	X			(X)
N_inorg according to WHG/ AbwaG		X	X	X
N_total acc. to Koroleff: CTPN decomposition with persulphate	X	X	X	X
TN_b according to DIN 38409 H27 (EN 12260)	X	X	X	X	X
bound Nitrogen acc. to DIN 38409 H28 (Devarda)	(X)	X	X	X

The QuickTOCultra is a cutting-edge instrument designed to measure Total Bound Nitrogen (TN) in water and wastewater with high precision and efficiency. By utilizing advanced oxidation technology, the QuickTOCultra rapidly converts all forms of nitrogen compounds, except molecular nitrogen (N2), into nitrogen monoxide (NO) at elevated temperatures, typically around 700°C. As a result, this process ensures highly accurate and reliable TN measurements, which are crucial for monitoring water quality.

Moreover, the QuickTOCultra provides real-time, online analysis, delivering results in just a few minutes without requiring chemicals or reagents. Thus, it serves as a low-maintenance solution. Additionally, its automation and seamless integration into process control systems enable industries to continuously monitor TN levels. Consequently, this ensures compliance with environmental regulations while also minimizing ecological impact.

Thermal TNb determination

The thermal determination of TNb is characterized by a high degree of automation, increased accuracy as well as by short measuring cycles. Additionally, the user benefits from the fact that hazardous reagents are not necessary at thermal determination.

Commonly two detections of TNb in water samples are used. The detection of the concentration is made with a chemiluminescent- or an electrochemical detector. For chemoluminescence detection ozone is required for the reaction with NO, disadvantaging the approach due to the use of hazardous reagents and the high cost. The electrochemical method is low maintenance, includes lower aquisition costs and the accuracy of its measurement is comparable with the chemoluminescence detection.

Thermal oxidation at 1,200°C

LAR Process Analysers AG guarantees the complete oxidation of all organic and inorganic compounds with the ultra-high temperature method at 1,200°C. After the oxidation the TNb is detected by an electrochemical sensor. This is an environmentally friendly method that provides very accurate measurement results. The chemiluminescence detector is available as an option of the QuickTONultra. Operators also have the option to measure the TNb in combination with TOC and COD. The high temperature devices of LAR are applicable in a variety of applications.

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