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Flow Measurement
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Water & Wastewater
Flow measurement is an important aspect of many operations in the water industry and a good understanding of the metering process remains central to the efficient provision of clean water and the safe disposal of wastewater. For example, abstraction of water, dosing during water purification, metering into supply, metering to customers and discharge of wastewater into rivers all require metering. The reasons for flow measurement vary from quality control, revenue calculation to environmental regulation. The required accuracy of flow measurement varies with application from better than 1% for water quality monitoring, up to 10% for environmental regulation.
The many and diverse metering applications within the water and wastewater industry call for a wide range of metering technologies. For instance, magnetic flow meters are widely used in the main distribution system while open-channel meters are commonplace in wastewater discharge. With much of the supply network buried, access is not easy and many meters are installed in situations that are far from ideal.
Typical water & wastewater applications include: water flow monitoring; dosing of water treatment chemicals; correct billing and accurate water consumption monitoring; leakage detection and reduction; network load monitoring; optimisation of water usage; water consumption and system operation in irrigation systems; monitoring influent water quantity to wastewater treatment plant; monitoring discharge quantity from the wastewater treatment plant; monitoring of water flow between reservoirs.
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