Total organic carbon (TOC) analysis is critical to preventing corrosion and costly damage to equipment.



Water quality plays a crucial role in the overall productivity and efficiency of thermal power generation systems including nuclear, coal, natural gas, and cogeneration power plants. Monitoring organics and boron provides accurate and reliable data for optimizing boiler feedwater treatment, preventing organic acid corrosion in boilers, and avoiding detrimental deposition on turbine blades. Organics monitoring can also help ensure wastewater meets discharge requirements and on-site water recycling goals.

Total Organic Carbon (TOC) is a key contributor to corrosion and an indicator of organic contamination, monitoring TOC at different control points of a power plant is a vital part to maintaining productivity and lowering maintenance costs.

In an ultrapure water (UPW) system, Boron is the first contaminant released from a mixed-resin bed followed by silica. When silica leaks from a resin bed, it is typically at levels below the limit of detection (LOD) of current on-line silica monitoring technologies making it undetectable for long periods of time which can cause damage to turbine blades and heat exchangers. Boron monitoring offers early detection of silica providing a cost-effective, low-risk solution for resin management, leak detection, and protection of equipment.

Sievers’ Instruments for the Power Industry:

  • M9 On-line and Portable: Continuous monitoring or grab samples to detect contamination and optimize treatment of condensate, feedwater, and boiler water.
  • InnovOx On-line: Continuous monitoring of plant process water and condensate for detection of leaks and to ensure regulation compliance.
  • Boron: Continuous monitoring of 1-4 streams for ultrapure water post demineralization or EDI to minimize breakthrough of silica and avoid deposition in boilers and turbines.
  • 500 RLe On-line: Continuous monitoring of ultra-low-level TOC. Resolves TOC recovery issues that are difficult for other reagent-less TOC sensors.