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TOC/TNb in Environmental Waters

Contents of the e-book

The determination of TOC (total organic carbon) and TNb (total bound nitrogen) is an important indicator in modern water analysis. As meaningful sum parameters, they provide fast and reliable insights into pollutant inputs and the potential eutrophication of water bodies.

With the revision of the European Urban Wastewater Treatment Directive (UWWTD), TOC has gained additional importance: it is now officially recognized as a monitoring parameter and represents a sustainable and safe alternative to conventional COD methods.

In this e-book, you will learn how to apply standard-compliant analyses of TOC and TNb for reliable environmental monitoring of water samples, including wastewater, drinking water, and seawater.

Key Takeaways:

  • Regulatory framework & compliance: Classification of the revised UWWTD and an overview of DIN EN 1484 and DIN EN ISO 20236 for future‑proof TOC/TNb analysis
  • Efficient wastewater analysis: TOC/TNb compared to COD
  • Reliable analysis of TOC/DOC and TNb/DNb in surface waters
  • Solutions for TOC analysis in seawater with high saline matrices
  • Best practices: Cellulose test, NPOC method, and practical tips for cost‑effective, standards‑compliant routine analysis

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