challenge

A chemical manufacturer wants to conduct a more in-depth analysis and understanding of the quality of condensate return water in order to better manage the use of water and energy. The manufacturer wants to supplement and strengthen the pH and conductivity measurement methods currently in use, in order to better make decisions on whether to recycle or discharge the reflux condensate. If the water quality monitoring system can quickly detect pollutants, especially those with extremely low concentrations, factories can make more confident decisions about recycling or discharging, thereby optimizing water system management and improving process efficiency. Although pH and conductivity measurement methods are effective in detecting ionic pollutants in water, they still have significant limitations in detecting organic pollutants, especially at low concentrations.

Solution

The Total Organic Carbon (TOC) analysis method can detect all natural and synthetic organic compounds, including compounds that are difficult to detect by pH and conductivity measurements. The TOC analysis method can measure the comprehensive parameters of organic pollutants and is a powerful detection method that can detect all compounds that can reduce the quality of condensate water and accelerate system corrosion. The TOC analysis method provides users with valuable information about water leaks, pollution trends, deviations from optimal process conditions, and more. The pollutants in chemical plants mainly include process chemicals, volatile organic compounds (VOCs), cleaning agents, solvents, oils, treatment chemicals, resin extracts, etc. These pollutants may be sulfonated, halogenated, nitrogen-containing organic compounds that decompose into corrosive ions or organic acids under high temperature and pressure in steam systems. The pH and conductivity measurement methods cannot effectively detect the above compounds before they decompose, while the TOC analysis method can quickly and effectively detect their presence.

Sievers * M5310 C TOC Analyzer

The Sievers M5310 C TOC analyzer adopts UV persulfate oxidation technology and sensitive and stable Sievers membrane conductivity detection technology. Membrane conductivity detection technology can measure oxidized organic compounds (in the form of CO2) in liquid phase, while other types of TOC analyzers use non dispersive infrared (NDIR) detection technology to measure CO2 in gas phase. Therefore, the Sievers M-series analyzer (including Sievers M5310 C) is a TOC analyzer that can detect non-volatile and volatile organic compounds without the need for carrier gas in standard operating mode. The membrane conductivity detection technology perfectly meets the key needs of this global chemical manufacturer.

Conclusion

Early detection of process leaks or trace level pollution can help protect equipment and products, accelerate user decision-making speed, and greatly save production costs and time. PH and conductivity measurements cannot detect certain compounds, while the Sievers M5310 C TOC analyzer can effectively detect all organic pollutants and volatile organic compounds in the production process. This analyzer provides users with an extremely reliable detection solution due to its low detection limit, extremely low maintenance requirements, stability, and accurate low concentration analysis capability. The monitoring of condensate return water is crucial for optimizing water and energy management as part of the factory's continuous technical improvement plan. In this case study, the factory installed Sievers M5310 C online TOC analyzer at each condensate return position, thereby enhancing water quality monitoring capabilities. This added capability enables factories to monitor process changes faster and more comprehensively, and protect the ultra pure water steam system. The factory has greatly strengthened water quality control through the fast response, high sensitivity, low maintenance requirements, and convenient operation of these analyzers.

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