Analytical Instrumentation & Environmental Monitoring


On-Line water quality monitoring system

April 2000 Analytical Instrumentation & Environmental Monitoring

The Microtox-OS test system from Siemens Environmental Systems is an automated on-line water quality monitoring system that uses luminescent bacteria to detect the presence of organic and inorganic pollutants, providing early warning of chemical pollution in raw drinking water.

Based on the successful scientifically validated Microtox toxicity test, the system is designed to operate on-site, unattended for two weeks, automatically monitoring surface water quality for dangerous or unexpected concentrations of chemical pollutants.

Two main components are used in the system. The sample preparation unit automatically takes a sample from the surface water source, filters it, and delivers the filtered sample to the Microtox-OS unit. This is a temperature-controlled test instrument equipped with a 36-position carousel loaded with individual vials of freeze-dried luminescent bacteria. One vial of reagent is reconstituted every 12 h. Sampling and testing can be programmed at 20 min intervals, 24 h/day.

The system is equipped with Statos, statistical process control software which continuously monitors data and trends. It is user-configurable to identify test results that are statistically different from preceding values.

Samples can be retained for future analysis and contaminant source identification while data can be downloaded to a PC for convenient analysing. A colour correction capability and programmable reagent performance verification eliminates false positive results due to the coloured samples, and the automatic flushing and cleaning cycles prevent sample constituent carry over.

Designed for use where water production facilities are concerned about contamination, the Microtox-OS monitors raw drinking water from transportation or weather-related disasters, industrial wastewater discharges, excess agrichemical runoff or chemical spills.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Avoiding South Africa’s water crisis
Analytical Instrumentation & Environmental Monitoring
Collaboration and technology can make South Africa a water-secure nation.

Read more...
Electrical measurement and process analytics for hydrogen production
Mecosa Analytical Instrumentation & Environmental Monitoring
Knick products optimise the hydrogen production process and electrolyser operation.

Read more...
Non-Nuclear online slurry density measurement
Allpronix Analytical Instrumentation & Environmental Monitoring
When a local metal smelting operation had a requirement to remove manual sampling from its slurry line, Allpronix was approached to advise on a solution.

Read more...
Portable combustion gas analyser
Elemental Analytics Analytical Instrumentation & Environmental Monitoring
The E8500 Plus is a powerful and advanced portable emissions analyser, a complete, portable tool for EPA compliance and level emissions monitoring of boilers, engines and other combustion equipment.

Read more...
Continuous emissions monitoring in power plants
Elemental Analytics Analytical Instrumentation & Environmental Monitoring
The MCA 10 multi-component analysis system combines precise measurement technology with excellent long-term stability.

Read more...
Two-gas detection monitor
Comtest Analytical Instrumentation & Environmental Monitoring
New lightweight two-gas monitor offers more accurate alarms and minimises maintenance with a two-year runtime.

Read more...
MAP – making the right choice for gas analysis
Elemental Analytics Analytical Instrumentation & Environmental Monitoring
Modified atmosphere packaging (MAP) is used within the food and pharmaceutical sectors to extend the shelf life of many products that would otherwise deteriorate quickly in the presence of oxygen.

Read more...
Accurate particle matter measurement
GHM Messtechnik SA Analytical Instrumentation & Environmental Monitoring
The PMsense datalogger has particular applications in smart city applications and the monitoring of particle matter pollutants found at industrial sites.

Read more...
24/7 boiler monitoring with the SWAS Compact
Endress+Hauser South Africa Analytical Instrumentation & Environmental Monitoring
Endress+Hauser has developed a compact new steam analysis device for continuous boiler water monitoring.

Read more...
Flexibility for disinfection measuring points
Endress+Hauser South Africa Analytical Instrumentation & Environmental Monitoring
Endress+Hauser’s new modular Flowfit CYA27 flow assembly enables measurement of up to six parameters in process and drinking water.

Read more...