16 Water / Wastewater
The PRO range builds on the success of the Aquaprobe and Aquasonde series, elevating every aspect of the construction, design, features and specifi cations. They bring with them new- to-industry materials allowing measurement at far greater depths, a unique measurement chamber for improved sensor stability in the most demanding applications and smart sensors that hold their calibration data, allowing for simple sensor exchange in the fi eld.
Aquaread Launch new PRO range of multiparameter water monitoring instruments The PRO range come complete with all the key water
Both the Aquaprobe (AP) and Aquasonde (AS) models of the PRO range feature a combination of titanium and carbon fi bre, offering both exceptional corrosion resistance and high compressive strength. As a result, both are capable of measuring at extreme depths of up to 1000ft (300m).
The protective end cap, found on all Aquaprobes, has been extended along the inside of the sleeve. When screwed onto the sleeve it creates a more stable measurement chamber for all installed sensors. Its matt black design prevents refl ection and the sealed environment is not subject to interference from stray light.
The measurement chamber can also be used for sensor calibration using the calibration cup that push-fi ts to the base of the probe. This surrounds and seals the holes and allows the probe to stand upright. Utilising the measurement chamber for calibration in this way reduces the volume of calibration solution required, reducing maintenance costs.
The range sees the introduction of smart sensors, sensors that hold calibration data allowing exchange without the need to recalibrate. Sensors can be carefully calibrated in the lab and taken to the deployment site for simple exchange, removing the need to calibrate in the fi eld.
quality smart sensors as standard and is equipped with a self-cleaning system to keep them clean for prolonged monitoring. Standard sensors include optical dissolved oxygen, conductivity, pH, ORP, temperature and depth.
Four Auxiliary ports allow extra smart sensors to be installed, diversifying monitoring options.
The AS-PRO is fi tted with a novel three-position switch ring mechanism allowing you to confi dently switch the function of the sonde. Using the switch ring you can turn the unit off, set it to auto or activate Bluetooth mode. The switch ring includes multi-coloured LED for various indications.
When in Auto mode the sonde will detect if its connector has been blanked off, if it’s connected to a vented cable, if it’s connected to an Aquameter or if it’s connected to a PC via USB, and reacts accordingly.
When set to Bluetooth mode, using the SondeLink App, the user can take live data readings, calibrate the Sonde, set-up the logging regime, check battery and memory levels and upload logged data from the Sonde to the PC.
“The new PRO range expands our capabilities and opens-up new markets for us, it is already proving incredibly popular with our distributors and with our customers. We are very excited to bring this new product to the water monitoring industry this year.” Says Aquaread’s managing director Craig Harrison.
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email: TOC analyser helps municipal wastewater plants
monitor treated effl uent to meet environmental regulations Municipal wastewater plant engineers and managers will fi nd the Total Organic Carbon (TOC) Analyser from Electro-Chemical Devices (ECD) helps them measure carbon levels more accurately in order to ensure effective treatment, to monitor post treatment effl uent and to meet federal, state and local water environmental regulations.
ECD’s TOC Analyser, with its UV persulfate non-dispersive infrared (NDIR) detection technology, helps plant engineers and technicians know with confi dence that their wastewater treatment process is effective and that the job is complete. In addition to municipal wastewater treatment plant applications, the TOC Analyser is also suitable for monitoring stormwater and other types of industrial water-based waste streams or for water re-use treatment applications.
In surface water, ground water, municipal wastewater or industrial wastewater, organic matter is generally present at various levels and needs to be measured and treated. Knowing the TOC level is especially important for effectively treating municipal wastewater and stormwater fl ows prior to plant effl uent release to prevent the contamination of streams, rivers, lakes and ponds where sensitive wildlife including plants, fi sh and other aquatic creatures are present.
ECD’s TOC Analyser is a full-featured instrument that uses the UV persulfate oxidation sensing method, which detects generated carbon dioxide (CO2
to: ISO, DIN, CE, US EPA, ASTM and NAMUR regulations.
ECD’s TOC Analyser is simple to use: the water sample is fi rst acidifi ed and then sparged to remove inorganic carbon. The remaining liquid is mixed with sodium persulfate and digested by two high-performance reactors. The resulting CO2
The unique design of ECD’s TOC Analyser features a valve-free sample line, which largely eliminates blockages to help assure nearly continuous operation. The analyser’s auto clean, auto-calibration and auto-validation functions guarantee correct, reliable values that can be reproduced at any time without the need for manual intervention.
When compared to conventional analysers where the fl ow is controlled by a glass tube rotameter, the carrier gas fl ow with the ECD TOC Analyser is controlled digitally. The fl ow is monitored via built-in smart diagnostics and if an abnormal value is detected, the analyser stops automatically and displays a warning alert.
Developed for rugged, demanding plant environments, the ECD TOC Analyser is housed in a dual compartment enclosure. The isolated water sample components are in one compartment, and the electronics are in a second compartment for safety and highly reliable operation. The analyser compartment is rated IP54, NEMA 3, and conforms to EN610004-2, EN610004-4, C46-022, EN 55022 and EN 61326.
Simple to install and easy to use, the highly intuitive TOC Analyser features a user touchscreen display located on the front of the analyser. All output/input data, status information, alarms and fault conditions are shown on the display. Simply pressing the touchscreen buttons provides access to commands and settings. The system is password protected for security.
TOCs in wastewater are regulated worldwide, as well as by national and localised regulation governing and water quality standards. Many other industries rely on TOC measurement for analysis of wastewater prior to discharge. In addition, the power generation industries rely on TOC measurements for water quality concerning cooling water, condensate and boiler feed water.
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stripped from the liquid and, after drying, its concentration is measured by the NDIR analyser. The analyser measures TOC levels ranging from 0-5 mg/L to 20,000 mg/L.
) using its highly stable NDIR detector for analysis. This method and the analyser conform
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Simple and accurate fl ow measurement of surface water bodies in accordance with ISO 748:2021
Water and environmental agencies carry out discharge measurements in accordance with ISO guidelines and ISO 748 outlines methods for determining the velocity and the cross-section area in open channels as well as procedures for calculating the discharge.
In the 2021 edition of ISO 748, the NIVUS patented cross correlation technology is included within the accepted type of measurement devices under Acoustic echo correlation velocimeters (AECVs).
The NivuFlow Stick acoustic echo correlation velocimeter from NIVUS, not only meets the ISO requirements, but also ensures a professional and enjoyable user experience thanks to its ease of use.
The NivuFlow Stick multipoint-measurement, acoustic echo correlation velocimeter is capable of measuring the full fl ow velocity profi le with velocities automatically measured from the bottom of the channel up to the water surface. This signifi cantly improves measurement accuracy and means that discharge measurements can be completed in a shorter time where the meter does not have to be positioned at the different sampling depths.
The simultaneous measurement of up to 32 individual velocity ‘windows’ within each vertical section measurement provides the user with a full understanding of the velocity curve and greater information and understanding of how the average velocity is calculated within the vertical section.
The single measured velocities and fl ow velocity curve are shown directly on the unit display and with each individual measurement build up to show a full channel velocity profi le for the whole of the measurement location. The water depth in each vertical is also measured by an integrated hydrostatic level measurement and means that the river bed profi le is automatically determined and displayed during the gauging.
When the measurement of all of the verticals has been completed, the NivuFlow Stick automatically computes the total discharge in accordance with both the Mean-Section and Mid-Section methods. To conclude, a complete PDF measurement report is created by the device, including information about the cross-sectional area, discharge in each section, average velocity and water depth in the verticals, as well as the graphic representation of the fl ow profi le.
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