• SVEX NV (Indaver/Veolia JV) operates a fluidized bed furnace to co-incinerate wastewater sludge with industrial waste and recover energy via a steam boiler.
• They required a solution to optimize combustion to improve their energy production while reducing carbon footprint and supporting sustainability targets.
• The measurement location was highly demanding, with gas temperatures of around 950°C and a heavily dust-laden, corrosive process atmosphere.
• The objective was to continuously maintain optimal O₂ levels to achieve complete combustion and stable furnace operation.

• The solution includes SITRANS TDL oxygen analyzer for in-situ, continuous measurement directly in the furnace. 
• Based on tunable diode laser absorption spectroscopy, the solution delivered highly accurate and fast measurements of O₂ levels with minimal maintenance. 
• The sensors were strategically arranged within the furnace to obtain a representative sample of the combustion gases, providing real-time data on oxygen levels. 
• Integrated into the control system, the oxygen data enabled precise monitoring and adjustment of the air-to-fuel ratio, ensuring optimal O₂ levels for complete combustion, reduced unburned fuel, and minimized CO and NOx emissions.

SVEX NV, located in Beveren, and part of the Indaver group is a specialized waste management and processing company established in 2005. Operating within the Indaver plant in Kallo (Beveren), it focuses on incinerating hazardous waste using fluidized bed and grate incinerators to generate energy.