Determination of Treatment Sludge Sulphate (TS EN 12457-4)

The term biological solids defines sewage sludge in the wastewater treatment industry that has undergone adequate treatment for stabilization and pathogen reduction and is of high enough quality to be applied in the field. This phrase distinguishes high-quality, treated sewage sludge from sewage sludge containing large amounts of environmental pollutants. Biological solids are produced by biological processes.

Sewage sludge (biological solids) also contains sulfate. Sulfate poses a major threat to wastewater treatment. A high pressure liquid ion chromatography method is generally used to determine the sulfate. This method shows good recovery when measuring sulfate standards in raw and anaerobic digested sludge.

The main standards based on the determination of sulphate 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
• SM 4500 SO4-2 Sulphate

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 treatment sludge sulphate determination (TS EN 12457-4) services.