Production process of water quality monitoring

The production process of water quality monitoring mainly includes the following key steps and links:

Raw water treatment: Raw water usually comes from tap water, groundwater or other water sources. Pretreatment is required first to remove larger particles and impurities. The treatment process includes sedimentation, coagulation and flocculation. Sedimentation is to settle larger particles by standing; coagulation is to aggregate small particles into larger particles by adding coagulants (such as aluminum salts); flocculation is to further aggregate particles into flocs by stirring, and then settle and remove them.

Filtration: Water that has been treated with sedimentation and flocculation needs to be further filtered to remove suspended matter and fine particles. The filtration process includes sand filtration, activated carbon filtration and precision filtration. Sand filtration removes larger particulate matter, activated carbon filtration removes odor, color and organic matter, and precision filtration removes bacteria and small particles through membrane filtration or other precision filters.

‌Membrane filtration: In many pure water production lines, reverse osmosis (RO) membrane filtration technology is used to further remove dissolved salts, heavy metals and microorganisms in water. The reverse osmosis system pushes water through the reverse osmosis membrane at high pressure, effectively removing more than 99% of ions and most organic matter.

‌Disinfection‌: To ensure the safety of water, the treated water needs to be disinfected to kill possible microorganisms. Disinfection methods include ozone disinfection and ultraviolet disinfection. Ozone disinfection kills bacteria and viruses through strong oxidation, while ultraviolet disinfection kills bacteria and viruses by irradiating the water flow with ultraviolet lamps.

‌Storage and testing‌: The disinfected water needs to be stored in a clean water storage tank and tested regularly to ensure that the water quality meets national standards. Water storage tanks are usually made of stainless steel or food-grade plastic materials to avoid secondary contamination. Water quality testing includes regular inspections of indicators such as pH value, conductivity, and total bacteria count.

‌Data acquisition and transmission‌: The core of the water quality monitoring station is to ensure the long-term stable operation of the equipment and accurate and reliable data. Components such as sensor modules, data acquisition systems, power supply units, communication modules, and housing structures must be strictly controlled. Sensors such as pH sensors, dissolved oxygen sensors and temperature sensors must be tested in standard solutions before leaving the factory to ensure monitoring accuracy. The data acquisition system uses high-precision AD conversion chips and sliding average processing, the power supply system adapts to a variety of environments, the communication module supports a variety of protocols, and the housing protection level must meet the IP68 standard.