26 Water / Wastewater


Registration Opens for Water Sector’s ‘Big Data’ Conference


Efficient Colorimetric Analyser Helps Monitor Troublesome Manganese & Iron in Drinking Water


The easy-to-use and economical CA6 Colorimetric Analyser from Electro-Chemical Devices (USA) provides accurate and reliable measurement of manganese (Mn) or iron levels in municipal drinking water production, food/beverage processing and other high purity water processes.


The Model CA6 Colorimetric Analyser is an on-line sequential sampling analyser. A sequence of sampling, analysis and results processing is performed and repeated using colorimetric methods. This technology relies on an LED light source and a heated colorimetric cell designed for measuring trace amounts of manganese, iron and other analytes in water. Manganese and iron are natural occurring elements found in air, soil and water. Manganese and iron are essential nutrients for humans and animals. Adverse health effects can be caused by inadequate intake or over exposure. Manganese deficiency in humans is thought to be rare because manganese is present in many common foods.


Both manganese and iron have a strong, unpleasant metallic taste in water. Ground water sources with manganese and iron can appear clear initially, but turn black (manganese) and orange-brown (iron) when exposed to air. An advisory from the U.S. Environmental Protection Agency (EPA) recommends reducing manganese and iron concentrations to or below 0.05 mg/L and 0.03 mg/L, respectively, which are the EPA’s secondary maximum contaminant levels (SMCL’s).


The EPA’s manganese and iron SMCL’s are based on staining and taste considerations, but are not federally enforceable regulations and are intended as guidelines. There are multiple municipal water treatment options for the removal of Mn and iron from drinking water.


‘Big Data’ and the ‘Internet of Things’ are starting to affect every industry, and the water sector is no exception. The forthcoming International Water Association (IWA) Conference, entitled: ‘New Developments in IT & Water,’ will therefore provide an update on how data collection and processing is affecting the management of water and wastewater, and how it will develop in the future.


The IWA Conference will run alongside WWEM 2016 in Telford (UK) 2-3rd November 2016, and registration for both events is now open at www.wwem.uk.com.


With high profile speakers from 14 different countries, the IWA Conference will be a truly international event, attracting delegates from around the world. “IT has been a key factor in the development of the modern Water Industry and still offers exciting opportunities for the future,” says Oliver Grievson from Anglian Water, a member of the IWA Scientific Committee. “The nature of IT infrastructure is changing, and opportunities are being created in the drive for better environmental performance whilst lowering costs, becoming more sustainable and mitigating risk.


“As technological developments enable the collection of vast amounts of accurate, reliable data, the key challenges are to understand which data is important and to find ways to exploit the value in the data. Delegates will be provided with an insight into the sensors, controllers, dataloggers, telemetry, software and web-enabled control systems that make it all possible, and many of the speakers will explain how to optimise the value of the data.


“The concept of a ’smarter’ Water Industry will be addressed through discussions on the value of Smart Systems, Network Protocols, Modelling & Control, and Decision Support Systems.”


Fellow organiser Marcus Pattison believes that the IWA Conference is particularly well timed: “The Water Industry is a significant consumer of IT systems and a large producer of data, but it has infamously suffered from ‘Data Richness and Information Poverty,’ producing millions of pieces of data every day, and struggling to extract the value. However, the industry is changing rapidly and pressure is building from a number of directions: population growth is driving a need for greater efficiency; environmental and product quality requirements are becoming tighter and there is a constant desire to lower costs. As a result, the water sector needs to be ‘smarter’ in the way that it operates, with process and network monitoring systems working in tandem with modelling, communications and control technologies that are fast, intelligent and secure.”


WWEM 2016, the co-located international Water, Wastewater and Environmental Monitoring conference and exhibition, will focus on all aspects of testing and monitoring, providing an update on the techniques, technologies, methods, standards and regulatory requirements that relate to monitoring both on-site and in the laboratory; covering sampling, field analysis, gas detection and continuous water and wastewater monitoring applications.


Both WWEM and IWA visitors will benefit from free access to the WWEM Exhibition which will feature almost all of the world’s leading providers of water testing and monitoring equipment products and services, in addition to regulators, standards authorities and academia.


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They all, however, rely on accurate and dependable water quality analysis prior to and after treatment. The CA6 Colorimetric Manganese Analyser is available in three ranges: 0-100 ug/L, 0-1 mg/L and 0-5 mg/L and the CA6 Colorimetric Iron Analyser also is available in three ranges: 0-0.1 mg/L, 0-1.0 mg/L and 0-5.0 mg/L.


The CA6 precision online sequential sampling analyser is lightweight and easy to install. Weighing less than 40 pounds, it can be wall mounted or simply set on a bench using the optional bench top stand. After the sample, waste and reagent lines have been connected to the analyser and provided with power, the CA6 will begin its preprogrammed analysis sequence. The CA6 is available with up to 4 channels (optional) each from a separate sample point. A simple, user-friendly menu structure and touchscreen interface makes it easy to access information or customise analyses.


The CA6 utilises photometric differential absorbance to analyse manganese, iron and over 20 other common parameters including: aluminum, silica, nitrogen, iron and sulphate. It operates at a wide temperature range of 5-50°C and offers repeatability of ±2% on the absorbance value if the turbidity <80 NTU and drift of ±2% per month on the absorbance measurement.


The CA6 Analyser’s easy-to-use touch-screen display shows the measured parameter, analyser status, percent reagent volumes and the menu bar, which provides access to the run, display, programme, service and help menus. It includes two alarm relay outputs and a 4-20 mA channel that connects with programmable logic controllers (PLC’s) or distributed control systems (DCS’s). The rugged and reliable CA6 features two separate compartments to isolate liquids and electronics and is enclosed in an epoxy powder coated, cold rolled steel cabinet. The liquids enclosure houses all the components necessary for sampling and reagent flow, mixing and reaction stages (sampling pump, reagent micro- pumps and colorimetric reaction cell).


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The con::lyte, from s::can (Austria), is a powerful terminal to display and control a number of continu ously measured water quality parameters. With the relaunch of the well-established con::lyte, the s::can development team has not only given a complete makeover to the product, but has also added a number of additional features.


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The PID control function offers additional intelligence to continuously control a dynamic process trig gered by the real-time data from the sensors. The ergonomic, multilingual user interface is designed for intuitive operation. It is easy to add new sensors, carry out calibrations and data can be conveniently downloaded via USB interface. A high speed processor combined with data logging functionality with internal storage of up to 512 MB improves the usability of the terminal substantially.


The con::lyte is equipped with analogue and digital inputs. Up to three s::can sensors can be con nected and up to six parameters are displayed. Multiple output options to central database systems such as 4-20 mA analogue outputs, modbus RTU or profibus DP are available.


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A new transmitter has been developed for accurate flow measurement in open channels, part full and full pipes, and surface water bodies and is compliant with both ISO 6416 & IEC 60041. To meet the highest possible accuracy requirements it is currently possible to utilise the NivuFlow 650 using up to 4 velocity paths. With extention boxes there will be up to 32 velocity paths available by the end of 2016. It is then possible to measure multiple applications using only one transmitter.


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The compact transmitter design is easily integrated into instrument cabinets using a DIN rail mounting system and is also available with a field enclosure that provides full protection under harsh environmental operating conditions.


The transmitter’s large graphic display allows quick and easy commissioning of the flow metering system. The NivuFlow 650 provides extensive diagnostic options and allows in-depth analysis of operational function on site. The newly developed flow calculations are based on the very latest fluidal dynamic models. The unit can be maintained via Internet from anywhere in the world.


NIVUS (Gerrmany) have developed a wide range of highly accurate acoustic transducers, with both standard and bespoke mounting systems available to ensure the best and most flexible installation options are available for any measurement application. The system has been developed using future proof protocols complete with versatile choices for communication and I/O connections to open up a wide range of options for operators to integrate the instruments into SCADA or similar operating systems. Measurement in surface water bodies such as rivers, channels, irrigation systems, drainage systems as well as cooling water, process water, hydropower plants and turbine efficiency monitoring or leakage monitoring in pipelines are typical NivuFlow 650 applications.


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New Transmitter with Intuitive Operation and a Wide Range of Sensors


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Monitor and Control your Water with New Terminal


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