In today's era, with the continuous improvement of production levels, the scale of modern industrial production is expanding, involving more and more areas, the type and amount of resources consumed is rising rapidly, thus bringing serious environmental pollution problems. As China and the world pay attention to environmental protection issues, the pace of environmental management and protection is accelerating, in order to more effectively promote urban planning and sewage management, the need for comprehensive treatment and control of industrial "three wastes" one of the sewage discharge. Therefore, accurate sewage flow meter measurement has become a very important basic work.
Nowadays, many domestic wastewater treatment plants mainly use "mud and water integration" sludge treatment and disposal technology for industrial wastewater discharge, and with the continuous updating of treatment technology, many wastewater treatment plants have developed mud and water integration sludge treatment system with plate and frame filter press as the main body, changing the traditional belt filter press dewatering machine and centrifugal dewatering machine. can only reach the level of sludge water content of about 80%, ending the traditional way of separating sewage treatment and sludge treatment, driving the development of sludge treatment downstream industry, and laying the foundation for the development of circular economy, energy saving and emission reduction, and achieving the goal of sludge reduction, harmlessness and resource treatment. The set of sewage treatment system technology contains sewage flowmeter (electromagnetic flowmeter), pressure transmitter, flow accumulator, radar level meter and other supporting products.