Water Level Indicator Applications

Level indicating transmitter for swimming pool level control

A Surge Tank is used at the Okatokes Rec Centre Swimming Pool to regulate pool level. By monitoring level in a surge tank the non-contacting Greyline LIT25 Level Indicating Transmitter controls makeup water flow through a solenoid valve.

By Greyline Instruments Inc. based in Long Sault, ONTARIO (CANADA).

Measurement and control systems for the Indicating the level - mechanically

Depending on the regulations, a steam boiler must be equipped with one or more direct and/ or indirect level gauges. With direct level gauges, the liquid level can be seen directly through a glass or mica window. The use of a transparent level gauge with background illumination gives operating staff a clear separation between the water and steam zones even when viewed at a relatively long distance. Bicolour level gauges (black and white or green and red) are very suitable for camera transmission to the measuring station because of their special design and the intense LED illumination. With indirect level gauges, the water level is transmitted by a magnetic system to a display panel on the outside of a pipe.

By IGEMA GmbH based in Münster, GERMANY.

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Online monitoring solutions for the drinking water industries

AppliTek manufactures wet-chemical analyzers specifically designed for measuring on a continuous base the quality indices of drinking water, from raw water intake up to distribution level. Our systems have a small footprint, reduced reagent consumption and show excellent levels of detection in compliance with modern standards. On top of that, the delivery of safe water throughout the water cycle will raise the need for efficient monitoring systems detecting in real-time contaminations. `Broadband toxicity`, a non-specific parameter defined by AppliTek, is a prodigiously new and clean technology for safeguarding drinking water.

By AppliTek NV based in Nazareth, BELGIUM.

COD Reduction

Chemical Oxygen Demand (COD) is used as a measure of organic pollutants in water. In wastewater treatment, it indicates the efficacy of a treatment process and is expressed in milligrams per litre (mg/L) or parts per million (ppm). Removing certain fractions of COD in waste streams can be particularly challenging, especially to levels safe for discharge to the environment.

By Arvia Technology based in Runcorn, UNITED KINGDOM.

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Boiler Water Testing / Cooling Tower Water Testing

Boilers and cooling towers share two major water related problems: deposits and corrosion. As steam is generated by a boiler or water evaporating from a cooling tower, dissolved minerals are left behind, increasing the concentration of these minerals. Additional minerals are introduced via the water added to makeup the water lost to steam/evaporation. Eventually, the minerals reach a level (or cycle) of concentration that will cause either loss of efficiency due to scale or damage from corrosion. This level can be determined by the Ryznar or Langlier indices and correlated to a conductivity or TDS range. Most people recognize problems associated with corrosion. Effects from scale deposits, however, are equally important. For example, as little as 1/8` of scale can reduce the efficiency of a boiler by 18% or a cooling tower heat exchanger by 40%!

By Myron L Company based in Carlsbad, CALIFORNIA (USA).

Microbial testing for biological wastewater treatment industry

Realize a new level of process stability and efficiency! Wastewater operators have traditionally had no choice but to rely on TSS or VSS measurements to quantify biomass in their process. These measurements detect much more than just living biomass and therefore are inaccurate and unresponsive indicators of the living population.

By LuminUltra Technologies Ltd. based in Fredericton, NEW BRUNSWICK (CANADA).

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Water monitoring technology for nutrient monitoring

Continuous monitoring of nutrient levels provides crucial information about daily, seasonal and event based changes in water quality conditions, and can be a strong indicator on the overall health of the water body. In recent years, monitoring of nutrients has grown in importance as it has come to the forefront in regulatory compliance of water quality in many regions.

By The OTT Hydromet Group based in Kempten, GERMANY.

Real-time In-situ Effluent Monitoring

The UviLux BOD Indicator enables in-situ, real-time, reporting of BOD within both natural water systems and water processing plants. The monitor detects fluorescent proteins that are inherent within sewage and slurry and provides an output in BOD equivalent units. The principle behind the measurement is the excitation of Tryptophan-like fluorescence within UV wavelength band, which has been shown to correlate with both BOD and bacterial contamination. With complete flexibility of deployment methodology, the UviLux BOD Indicator can be applied to both water supply and water recovery processing plants. For water supply processing, the UviLux BOD Indicator can be applied at the front end to the water intake to provide alarm of any contaminated water entering the plant. Applications within Waste Water Treatment Works can include monitoring of effluent levels at the final outflow point (into rivers and coastal areas) as well as the primary, secondary & tertiary stages, the data potentially feeding into energy saving systems to optimise process performances. The CTG UviLux BOD Indicator in-situ fluorometer can also be used within pipe and channel networks to test for incidences of black water and grey water cross-over.

By Chelsea Technologies Group based in West Molesey, UNITED KINGDOM.

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