18 Water/Wastewater
New Low-Power, Wireless Remote Monitors
Next Generation of Online Water Quality Sensors for
WTW Corporation (Germany) has announced the introduction of the next generation of WTW spectral sensors CarboVis®
, NitraVis® and NiCaVis®
use with the WTW IQ SensorNet System for online measurements including COD, BOD, TOC and TSS in wastewater applications.
The new optical system design ensures measurement accuracy, repeatability and stability. The drift-free sensor guarantees reliable data over extended periods of time, without the need for routine maintenance. Using the full UV-VIS spectral wave length range from 200 to 720nm provides the best measurement results and optimum compensation of interferences like turbidity.
The integrated, advanced ultrasonic cleaning system reduces manual window cleaning to an absolute minimum. High performance materials including Titanium and PEEK are used to withstand harsh conditions for extreme durability over the entire sensor lifespan.
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Following the acquisition of ADCON Telemetry, the Austrian low power wireless communications specialist, OTT Hydrometry (Germany) has launched a suite of instrument 'bundles' that bring new levels of simplicity to the remote collection of environmental monitoring data.
OTT Hydrometry already offers a variety of wireless communication options, however UK Managing Director Simon Wills says, "The ADCON equipment is extremely low power and does not require a housing, so it is ideal for remote monitoring applications. It is also low cost and enables the utilisation of mixed communications technologies within the same network.
"The main advantage will be the quick, easy, low cost utilisation of radio telemetry and for applications in which radio cannot reach the required destination; we will be able to include any of our other telemetry options.
The ADCON equipment can also be easily retro-fitted to existing monitoring stations from which data is collected manually, thereby saving significant labour costs and providing access to live data with GPRS/GSM or radio telemetry.
OTT has announced that the first instrument bundles to be launched with the ADCON technology will be for water level, rainfall and water quality monitoring applications. These include; OTT RLS (Radar Level Sensor), OTT PLS (Pressure Level Sensor), OTT SE200 (Shaft Encoder Float Sensor), Pluvio2 precision rain gauge and the Hydrolab Multiparameter Water Quality Sondes.
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Electrochemical Sensor Manufacturer Awarded Prestigious Framework Agreement
Specialist electrochemical sensor manufacturer Analytical Technology (UK) announces that it has been awarded a framework agreement to supply and install bufferless chlorine monitoring systems to English water utility company, Yorkshire Water. An in-depth technical evaluation was carried out by Yorkshire Water, in which Analytical Technology’s products were compared with a competitor’s against benchmark buffered units. Following this extensive process, Analytical Technology secured the agreement and commenced an asset replacement scheme for over 450 chlorine monitors.
The evaluation period lasted eight months and Analytical Technology’s bufferless chlorine monitors were tested using a wide variety of water types at four different water treatment works. During this time, the
Analytical Technology monitors required very little maintenance and calibration, reflecting the company’s vast experience with membrane technology. This trial established that the monitor’s membranes would not need replacing for at least six months at all but a small minority of sites with high manganese levels.
Yorkshire Water continually monitors water from its 59 treatment plants with samples taken from 363 reservoirs where treated water is stored. In a typical year, more than 500,000 tests are carried out on water samples to ensure it meets exacting standards. The first phase of Analytical Technology’s framework agreement has been successfully completed with 75 chlorine monitors installed at 12 Yorkshire Water sites in the North and Dales areas. This includes a mixture of buffered, bufferless and pH corrected units, which are deployed depending on water quality and expected pH range. Additionally, funding for the second phase has recently been approved, in which a region wide asset replacement of chlorine monitors will be completed. This will include the installation of 377 chlorine monitors into an additional 31 water treatment plants and 20 secondary chlorination sites.
Rod Black, Asset Reliability Manager at Yorkshire Water said: “The instruments have performed well with little or no issues; chlorine control has been good and has not contributed to any call outs. It is nice to have standard instruments which can be calibrated and cleaned easily.” Alan Henson, Project Manager at Yorkshire Water commented: “Analytical Technology came out comfortably the best performer in our rigorous selection process, and the company’s vast experience with membrane technology places them ahead of most of their competitors who are only just adopting the technology. Once the roll-out has been completed, the scheme will have realised around £335K of OPEX savings per annum for Yorkshire Water and operators will no longer have to manhandle 25 litre containers of buffer around our sites. Analytical Technology has provided an excellent service and it is a pleasure working with a company who are very customer focussed.”
Dr. Michael Strahand, General Manager Europe at Analytical Technology added: “This agreement confirms that Analytical Technology’s chlorine monitors are unrivalled in the market, maintaining our position as one of the leading suppliers of water monitoring systems in the UK. Our top quality instrumentation is backed up by our commitment to delivering industry leading customer service and this new framework agreement is a great reward for our hard-working and dedicated team.”
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New Multimeter for Water Analysis
The latest digital handheld, the Ultrameter III 9P from Myron L Company (USA), is based on the tried and tested design of the Ultrameter II. The 9P adds the ability to perform in-cell alkalinity and hardness titrations either as stand-alone measurements or as part of an LSI calculation. Alkalinity, hardness, pH and temperature values can be manipulated in the LSI calculator to predict the effect of changes on water balance. Measurements are extremely accurate. And the 9P is simple to operate and maintain.
The 9P is packaged with all required solutions and accessories as part of the 9PTK Titration Kit. A hard foam-lined carry case organises and protects all contents: The 9P; 9P cell extender; titration plunger; reagents for in-cell alkalinity, hardness and LSI titrations; standard calibration solutions for all parameters; storage solution to protect the pH/ORP sensor; and pipette for precision dispensing with additional tips. Sensors are internal and included.
The 9P is also capable of wireless communication with the bluDock™ option installed. The bluDock uses Bluetooth®
software that makes it easy to analyse saved water sample data. Reader Reply Card No. 49 Reader Reply Card No. 47 technology to transfer data wirelessly to your personal computer and comes with user-intuitive
IET November / December 2011
www.envirotech-online.com
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