30 Water / Wastewater Leading range of online water monitors expanded to include bacterial monitoring capabilities
Aqualabo have recently introduced some new products to add to their range of on-line biomonitoring systems. As the exclusive distributor of microLAN company, Aqualabo has significantly expanded its range for water quality monitoring with total bacteria activity and toxicity measurements devices in several applications, both in the field and in laboratory.
The presence in water of
E.coli and coliform bacteria is an indicator that other pathogenic organism of faecal origin may be present. Therefore, routinely worldwide, monitoring of coliforms and
E.coli takes place in potable water, among other waters e.g. surface water, produced water, industrial water and even waste water.
The BACTcontrol detects the microbiological activity in water and produces a result within 90 minutes. Normally, such a measurement is done on the basis of a sample examined in a laboratory, which can take up to three days. The system is online and automated and it measures the specific enzymatic activities of β-galactosidase (coliforms), β-glucuronidase (
E.coli), ß-Glucosidase (enterococci) and alkaline phosphatase (total activity, biomass), as an indicator of the presence of bacterial contamination. The enzyme activity is detected by adding reagents (consumables) which contain a fluorescent indicator. The reagents are substrate-specific for the enzyme to be detected, meaning that there is an increase in fluorescence when the enzyme is present in the sample.
The iTOXcontrol is a unique system for on-line monitoring of the toxicity of waste, surface, drinking or process water. It is an early warning system to signal sudden peak values of chemical and other toxic pollutants, like heavy metals, within 15 minutes. In any event or breakdown it is possible to act
within minutes, compared to routinely measured parameters that take hours or sometimes days to signal sudden changes in the water quality. Due to iTOXcontrol’s capability to give a rapid and early warning, it is possible to
limit potential damage or restrict the pollution down to a small section of the drinking water distribution network. Another great advantage of bio- monitoring is the wide range of pollutants that can be measured in the low milligram range. With other types of measuring equipment, it is impossible to continuously monitor the many thousands of different chemical pollutants, as well as the combinations, likely to be present in the water sample.
The integration of different optional sensors is now also possible which creates a combined system for early warning and water quality monitoring, such as an optional UV-VIS sensor or an optional algae sensor for Chlorophyll-a and blue-green algae.
MicroLan’s TOXmini is a portable and easy to use system for toxicity measurements in a wide variety of samples and applications. It automatically measures the luminescent effect of the Vibrio fisheri and will give an indication when the tested sample is toxic. It can be used in the laboratory (also in combination with the optional cooling block) and as a field system running on the recharchable internal batteries. It is also an ideal solution to be used on conjunction with the TOXcontrol because it uses the same reagents (freeze dried bacteria, blank solution and positive control).
Simple and reliable automatic water sampling
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MAXX Mess- und Probenahmetechnik GmbH’s P6 L compact and highly accurate automatic water sampler offers operators a unique combination of design and technology to meet all of their portable waste water sampling requirements. The P6 L’s innovative design includes a host of new features not found on many other models available on the market. For example, a “sleep mode” on the sampler ensures that longer running times can be achieved with the sampler so less visits to the site are necessary. The new microprocessor control on the device also enables easy integration of water quality sensors utilising an SDI-12 communication protocol. The P6L also offers the option of multiple bottle configurations for discrete sampling. This highly user-friendly sampler is easy to clean and calibrate, has a clear operating structure and is simple to program. The clear and unique LED display also enhances the P6 L’s ease of use.
Reliable, long-term wastewater flow metering with integrated data transmission
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The system can be operated for a very long time thanks to energy-efficient algorithms, performance-optimised sensors and the high capacity of the rechargeable battery. Given a five-minute measurement and recording cycle, the measurement can be continued for up to 250 days without the need to replace the battery. The battery can be replaced by the user very easily.
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A LTE modem with automatic transmission of readings and unit data via e-mail, FTP or to the NIVUS web portal is optionally available for the transmitter. Therefore, maintenance visits can be reduced to a minimum or can be planned in advance to save resources.
The high protection class of IP68 for sensors and transmitter permit to use the system even under extreme conditions. Protection class IP67 is guaranteed even with the cover open.
Parameters can be set and the transmitter can be operated wireless on site by using smartphone, tablet or notebook. This enables ergonomic and safe operation from within a protected area such as a vehicle even in poor weather conditions, direct sunlight or when accessibility is limited.
water monitoring equipment Multiparameter probe SENSOdive for surface or groundwater applications
Typical applications for the NivuFlow Mobile 750 are the determination of infiltration water, the verification of throttle equipment, precipitation discharge measurement or temporary measurements in wastewater networks in general.
TLC Meter Temperature,
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• Cost-effective sensor solutions for water quality and hydrological monitoring
• Low power data loggers and telemetry units • State-of-the-art transmission technologies
www.uit-gmbh.de IET November / December 2018
www.envirotech-online.com
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Level, Conductivity The Model 107 TLC Meter provides accurate, stable temperature and conductivity measurements, displayed on a convenient LCD display for easy reading. Static water level and depth of readings are read off Solinst PVDF flat tape, which is precisely laser-marked every millimeter or 1/100 ft. Tape lengths are available up to 300 m (1000 ft). The TLC Meter is excellentfor providing a general indication of contamination levels.
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Nivus’ mobile NivuFlow Mobile 750 flowmeter has been specially developed for wastewater applications in part filled canals as well as in partially filled and full pipes. A range of new pipe and wedge sensors featuring compact dimensions is ideal for the use in smaller flumes. The patented cross correlation technology determines the currently prevailing flow profile in real time providing high accurate results. Measurement accuracy can be significantly increased by the parallel use of up to three flow velocity sensors. Accessories such as the NIVUS Pipe Profiler allow for reliable measurement results in part filled pipes starting at diameters of 150 mm even at very low flow levels
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