Control of Water Quality by On-Line Measurement of TOC

Petrochemical and chemical plants use large quantities of water in their various processes. Whether the water is used in boilers, for cooling or is waste or run-off storm water the quality of the water needs to continuously monitored either for process control or for ensuring discharges meet their legal requirements. One easy way to continuously monitor that the water is within acceptable limits for use or discharge is to measure the total organic carbon levels.

Metrohm Applikon (Netherlands) is pleased to announce the introduction of the ADI 7010 TOC Analyser. The analyser uses the EPA approved UV persulfate oxidation method with NDIR detection and is easy to install and maintain. The analyser can measure liquid samples ranging from 0­5 mg/L up to 0­50,000 mg/L and conforms to EPA, DIN, CE, ASTM and NAMUR standards. The analyser is designed with two separate enclosures, one for liquids and the other for electrical and detector functions. All controls are through a touch screen interface and auto-clean, auto-calibration and auto-validation functions can be programmed. There is a continuous display of TOC concentration and reagent levels. Analogue outputs for result transmittal and relays for alarms and other programmable indicators are included for full integration into the plant’s own operating system.