Water and Effluent Treatment Magazine
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S cottish Water is trialling an online bacterium monitor that it says "completely revolutionises" traditional water sampling methods. The company, which says it is the first utility in Europe to use the technology, hopes it will significantly improve the accuracy of water sampling and reduce the time it takes from up to five days to just 15 minutes. The flow cytometry technol- ogy, known as On Cyt, is being used at the Glencorse Water Treatment Works near Edin- burgh to analyse the water quality of a sample in real time, giving a count of all bac- teria in the sample. Claire Thom, Scottish Water's water science team leader, said: "This technology completely revolutionises the traditional methods whereby any bacteria contained in a water sample have to be grown and incubated in the labora- tory for three to five days before we get a reading. "The results are regularly inconclusive as less than 1 per cent of bacteria can be isolated this way – o†en there wouldn't be any bacteria growth or the growth would be random. The traditional method makes it more difficult for us to link the results back to poor water quality. "Using the flow cytometer removes the need for us to grow the bacteria in the lab, so now we can directly measure them within a sample using laser technology. By adding a fluorescent dye to the sample, the instrument counts the bac- terial cells giving us an accu- rate result in around 15 minutes." The latest technology allows Scottish Water scien- tists to operate the bacteria monitor online, enabling it to set up the equipment at any treatment works in Scotland, feed a sample line into a point of interest and monitor the bacteria at regular intervals. The technology produces more regular counts that mean scientists can establish what is going on across different water treatment stages and accu- rately assess the treatment performance of a water treat- ment works. Prior to this, the sampling of a whole treatment works would have taken several sci- entists weeks to collect and analyse the data. The online monitor reduces man hours improving speed and accuracy of samples. Scottish Water is currently trialling the monitor at Glen- corse WTW and will be trans- porting it to various locations in its network. Trial taking place may lead to vast reduction in water sampling time WHAT IT IS: Global water specialist Xylem has partnered with technology company H2Ozone to globally launch the HydroInfinity Agricultural Series, system that can eliminate the use of antibiotics in livestock. WHAT IT DOES: The system delivers pure, ozonated water which can eradicate antibiotics, probiotics and vaccines from the food chain and help prevent antimicrobial resistance. It collects, purifies, stores and distributes water for bovine, poultry and piggery environments to drinking water standards by filtering out harmful pathogens and bacteria. HOW IT WORKS: The system collects water through a washable stainless inlet pre-filter at the top of the system. It then flows to a second inlet filter, which traps any particles larger than five microns. Next, the water passes through the "Helical" UV chamber, where all pathogens are deactivated. Thanks to the unique design, the speed of the water can be controlled to ensure it is fully treated and sterilised before being moved to the ozonation stage. WHAT THEY SAY: Peter Wright, EMEA Segment Director at Xylem: "HydroInfinity Agricultural Series marks one of the first major developments in reducing, if not eliminating, the need for antibiotics in the production of livestock. Not only does HydroInfinity clean water to an exceptionally high standard, it increases the health and yield of the livestock. It also has a payback period of less than a year." Ashstead tank inspection technologies As part of its new rental partnership with Silverwing, Ashtead Technology has added a range of tank floor inspection technologies to its fleet of rental instruments. Manufactured by Eddyfi Technologies, the equipment is all from the Silverwing product line and includes the Floormap 3DiM tank floor scanner and the Handscan manual tank floor scanner. Together with its remote visual inspection, ultrasonic corrosion mapping and flaw detection equipment, the addition of Silverwing means Ashstead Technology can now offer a complete tank inspection solution. SOCOTEC OASIS water recycling unit SOCOTEC has launched the upgraded and improved version of its OASIS Water Recycling unit. Having recognised the need to reduce running costs and make cooling tower systems more environmentally efficient, the updated OASIS units can support the reduction of water consump- tion and costly effluent discharges. Designed originally to recycle wastewater from evaporative cooling towers, the advanced model can also be used to recycle waste water from reverse osmosis water purification units used in a wide variety of applications including pharmaceutical process water, renal dialysis and beverage production. KSB Amaclean tank insert KSB is presenting its ready-to-in- stall self-cleaning Amaclean tank insert at the IFAT trade fair. Amaclean decreases the amount of stagnant water in the pump sump and reduces the need for maintenance and cleaning. In combination with select impeller types featuring in the wastewater pumps used, this tank insert eliminates the need for flushing valves. The patented design and gel-coated inner surface prevent waste and fibres in the wastewa- ter from depositing in and at lower parts of the structure. The tank is made of glass fibre reinforced polyester and all-wetted parts are made of plastic-coated cast iron or corrosion-resistant stainless steel. WHAT'S NEW OTHER TOP PICKS FOR SENSORS Scottish Water sees online bacterium monitor as revolutionary solution Next month: Filtration 22 WET NEWS APRIL 2018 | wwtonline.co.uk The trial is taking place at Glencorse Water Treatment Works PRODUCT OF THE MONTH Xylem HydroInfinity ● Agricultural water purifier which could eliminate use of antibiotics in livestock ● Chemical-free purification ● Patented operating technology combining UV, ozone and filter ● 220L storage tank ● Delivery pressure up to 4.6 bar - delivery flow up to 50 l/min TANKS AND TREATMENT