The Cape Breton Regional Municipal (CBRM) Water Utility in Nova Scotia supplies potable water to a population of 81,000, which is distributed over 478 miles (770 km) of pipeline. To do this, they operate, maintain and manage 5 water treatment plants, 6 pumping stations, 11 water storage tanks, 8 sources of supply, 2,900 fire hydrants, 28,700 water meters and thousands of valves.
SEPAREL hollow fiber membrane modules from the DIC Corporation provide exceptional degasification performance with a proprietary non-porous membrane which utilizes a Surface Skin membrane (SS membrane) for enhanced degasification. Available in both internal perfusion (PF series) and external perfusion (EF Series) varieties, SEPAREL modules are optimized for a variety of degassing applications.
The City of Southgate, California wanted to investigate the effect of replacing the existing media in their Well 27 treatment plant. The plant would not reduce the incoming manganese levels to below the 50 μg/l MCL. It has been theorized that the existing media has become fouled beyond cleaning during the one year plus of non-operation while contained in the filter tank full of water. That environment could produce a likely source of biological and other sources of fouling.
Water is a resource that is often taken for granted. As we see the effects of climate change and population growth, the challenges we will face regarding water supply and availability will only increase. Examples of this are beginning to surface extensively in many areas of the world. In Adelaide, Australia, the Murray River has long supplied Adelaide with its source of water however the Murray River has seen extensive overuse for potable, agricultural and industrial use and now combined with changing weather patterns, Adelaide is in trouble. By Brad Clarke, VP of Marketing & Sales, Singer Valve
Water Surge could cause damage in a water conveyance system, from leaking pipes to serious breakdowns and accidents the consequences of which could lead to heavy financial costs and even loss of life. There are various solutions that are able to prevent or reduce the damage. It is important to know the differences between the solutions, and the advantages and disadvantages of each technology, before recommending the most suitable solution for the system.
Flow meter accuracy is critical for process control but can be hampered by upstream and downstream flow disturbers. This problem may be addressed during the design process, though in some circumstances it’s impossible to eliminate disturbers.
The idea that membranes could be used for solids removal and concentration in potable water treatment schemes has been known for hundreds of years. It has only been in the past 50 years or so that reverse osmosis membranes for treating brackish waters or sea water have been considered a cost-effective viable alternative. More recently, the membrane suppliers have produced low-pressure membranes that are applied in current treatment process schemes to enhance the water quality effluent required to meet additional regulatory guidelines
As engineers come under increasing pressure to reduce maintenance and operating costs, inefficient combination double-pass reverse osmosis and electrodeionization (RO/EDI) water treatment systems have begun to lose popularity as a means of providing ultra-pure water. Integrated membrane systems (IMS), on the other hand, combine multiple membrane-based water treatment processes into a single system. In this case study, find out how a heat and power plant in Northeast China lowered capital costs and energy use by adopting an IMS to replace its conventional water treatment system.
The City of Riverdale was running into issues with arsenic, color and iron treatment system at their Well 4 site, so they conducted a pilot test with the help of Loprest.
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