48 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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New bladder pump design features easy-to-replace bladder


Solinst Canada Ltd. has launched a new Model 407 Bladder Pump design that will save you more time and costs in the fi eld while providing high-quality groundwater samples. Solinst Bladder Pumps now feature Santoprene® bladder cartridges that are quick and easy to replace in the fi eld—no tools are required.


Solinst Bladder Pumps provide


consistent, reliable groundwater samples in all types of applications. With Solinst Bladder Pumps, there is the assurance that there is no air/water contact during sampling – meeting the most rigorous US EPA standards for VOC groundwater monitoring. They are excellent for regular fl ow or low fl ow groundwater sampling. Low-fl ow sampling provides representative samples and results in cost and time savings. There is less need for repeat sampling and less time for each sampling round. Low purge volumes ensure quick sampling and less purged water disposal.


Solinst offers two pump sizes and now, two different pump materials. Back by popular demand, the NEW PVC Bladder Pump is available in a 1.66” (42 mm) diameter. The standard stainless-steel pumps are available in 1.66” (42 mm) and 1” (25 mm) diameters. Excellent for either regular fl ow or low fl ow sampling, the stainless-steel pumps can lift from depths up to 150 m (500 ft) below grade. The new PVC Bladder Pump operates up to 100 ft (30 m) below grade.


The stainless-steel Bladder Pumps are ideal for most municipal, industrial and general environmental applications, especially where VOC analysis of the groundwater sample is essential. The new PVC Bladder Pump is more suitable for metals analysis and situations with highly corrosive liquids. The lower-cost PVC Bladder Pump is a perfect choice for situations with a limited budget, but dedicated Bladder Pumps are preferred.


All Bladder Pumps use the new Santoprene bladders. In addition to being simple to replace, Santoprene’s chemical resistance and inert properties make the bladders suitable for harsh environments and potable water applications. They are resilient and fl exible, ideal for repeated, long-term use. Santoprene bladders are suitable for dedication; however, the new easy-to-replace bladder cartridges are excellent for those who prefer to change bladders after each use.


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Sophisticated alkalinity analyser helps to prevent pipeline corrosion and ensures compliance with environmental legislation


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Municipal water engineers tasked with preventing pipe corrosion by carefully balancing system pH/alkalinity/DIC levels will fi nd that the advanced CA900 Alkalinity Analyser from Electro- Chemical Devices (ECD) automates the routine measurement of low- to high-range alkalinity with a cost-effective, precision approach.


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Failing to detect high levels of alkalinity accurately in municipal water presents several problems such as poor water quality, over-disinfection and maintenance issues. ECD’s CA900 Alkalinity Analyser detects alkalinity from low to high ranges, which helps municipal water engineers, technicians and staff to avoid costly state and regulatory violations, fi nes and civil judgments.


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For example, one of the U.S. EPA’s approved methods of preventing corrosion in piping requires the understanding and balancing of the proper relationship between pH, alkalinity and DIC levels. Otherwise, toxic lead and copper contaminants can be accidentally released into the water system, which corrodes piping and contaminates the drinking water.


The measure of alkalinity indicates the capacity of water to neutralize acids (pH). Alkaline compounds such as bicarbonates, carbonates and hydroxides remove hydrogen (H2) ions and lower the acidity of the water to prevent pipe corrosion. Water quality depends on maintaining the proper balance of pH and alkalinity levels, which is essential in everything from drinking water production to wastewater processes.


Where high levels of alkalinity are a potential concern, the versatile CA900 Analyzer features a choice of four different factory pre-set alkalinity calibration ranges: 0 to>1000 ppm, 200-1000 ppm, 50 to 200 ppm and to 50 ppm. Users simply order the desired calibration range, and the analyser comes ready to go right out of the box. The analyser’s full-featured design also comes with four 4-20 analogue outputs, an Ethernet digital output and four user-confi gurable alarm relays.


The advanced CA900 Analyser from ECD is designed with sophisticated titration technology that is used to calculate alkalinity by dispensing known doses of a titrant fl uid into a reaction cell while monitoring the pH level to its end point. The analyser then uses the titrant concentration and amount dispensed to calculate the level of alkalinity in the sample.


Typically, the CA900 Alkalinity Analyser performs a single measurement per analysis cycle. Its program sequence consists of a cleaning cycle, sample acquisition, monitoring of pH, adding the titrant fl uid, mixing the fl uid, calculation of results and data storage. The desired frequency of analysis between cycles can be easily modifi ed to the requirements of the user’s process.


Measuring potentially high alkalinity levels with ECD’s CA900 Analyser is especially important for the effective treatment of both municipal drinking water and wastewater, where it can affect the wastewater anaerobic digestion process. Alkalinity in surface water generally results from the presence of calcium carbonate, CaCO3, which has been leached from rocks and soil and then enters surface or ground water systems.


The intelligent CA900 Alkalinity Analyser from ECD simplifi es and automates measurement. Technicians can easily install and start up the CA900 Analyser in less than 15 minutes with no special tools or training. It’s as easy as connecting the sample, the waste and reagent lines and then powering up the factory pre-calibrated analyser. Wall mounting hardware is standard with each analyser, but an optional bench top stand with reagent holder also is available.


Accessing information or customizing analysis routines are both easily accomplished with the CA900 Titration Analyser’s user-friendly menu structure and touchscreen interface. The analyser also can be web-enabled as a powerful internet of things (IoT) tool for remote monitoring and interfacing with personal handheld devices such as controllers, mobile phones, tablets, laptops and computers.


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