Determination of Phosphorus in Treatment Sludge (TS EN 12457-4)

There are three types of sludge: organic sludge, chemical sludge and combined sludge. The amount of phosphorus in the soil is a limiting factor for getting crops from the field. Large amounts of phosphorus compounds are used as fertilizers. Sewage sludge is a by-product of wastewater treatment processes. Transport and disposal of sludge are the most costly stages of sewage treatment. Sludge has been spreading on agricultural land for years for fertilization and soil improvement purposes. Phosphorus in the phosphate form is one of the largest uncontrolled pollutants in wastewater.

The main standards based on phosphorus determination in treatment sludge carried out in advanced laboratories are as follows:

• EN 12457-4 Waste characterization - Solid extraction analysis - Suitability test for solid extraction of granular solid wastes and sludges - Part 4: Single-use for materials with a liquid solids ratio of 10 l/kg and a particle size of less than 10 mm (reduced or not reduced) phased party experiment
• EPA method 3051A Microwave assisted acid digestion of sediments, sludges and oils
• TS EN ISO 17294 Water quality - Application of inductive double plasma mass spectrometry (ICP-MS)
  • Part 1: General guide
  • Part 2: Determination of selected elements, including uranium isotopes

In the test, analysis, measurement and evaluation studies carried out in our organization, national and international standards and applicable legal regulations are complied with and reliable and impartial results are obtained. These studies are based on the latest technological equipment, trained and experienced staff and modern methods. Among the numerous tests carried out in this context, there are also services for the determination of phosphorus in sewage sludge (TS EN 12457-4).