Application of High-precision Coriolis flowmeters in wastewater treatment plants

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The measurement carried out by Emerson flowmeters is an important part of measurement science. Sewage treatment facilities, which are responsible for receiving wastewater with high levels of pollutants or concentrations that do not meet emission standards or environmental capacity requirements, and carrying out enhanced treatment on such wastewater, need flow data at all times in order to determine the operating status of the system as well as to transmit information regarding the wastewater. The various parameter values of wastewater also differ, so the source of the wastewater should be considered first. Domestic wastewater is water that has been used in people’s daily lives and is contaminated by domestic waste. Its water quality and volume vary with the seasons; generally, more water is used in summer, resulting in a lower concentration ； In winter, the corresponding amount is less while the concentration is higher. Domestic wastewater generally does not contain toxic substances; its main pollutants include organic matter, inorganic salts, and a large amount of suspended solids. Industrial wastewater is the wastewater generated in industrial and mining production activities. It can be divided into production sewage and production wastewater. Production wastewater is generated during the production process and is contaminated by raw materials, semi-finished products, or finished products, including thermal pollution as well. Wastewater treatment plants require the use of Emerson flow meters, but they generally do not have complex and numerous mechanical or electrical systems; as a result, accidents caused by mechanical failures or electrical circuit problems do not occur. Wastewater treatment plants generate large amounts of gases during operation, such as methane, CO, hydrogen sulfide, etc. Some of these gases pose safety hazards when they reach certain concentrations; therefore, when selecting a flow meter, its explosion-proof properties must be taken into account. To achieve accuracy in wastewater measurement, it is necessary to conduct a comprehensive analysis of the flow meters installed in wastewater treatment facilities, including their operating conditions and characteristics, in order to determine the criteria for selecting such flow meters as well as the precautions to be taken when using them.