Standard for the use of stainless steel domestic water tanks

The standard for the use of stainless steel domestic water tanks is to ensure the health of the people, and drinking water should not contain microorganisms (including original bacteria and other microorganisms). According to the hygiene standards for drinking water in China, the total number of bacteria in a water sample cultured for 24 hours should not exceed 100 There are only three coliforms in the water. Antivirus is a specific measure to kill bacteria in water and clean water quality. Stainless steel domestic water tanks should also be carefully selected. Surface water is always more or less contaminated by domestic sewage, industrial and agricultural wastewater, or other impurities. Even after undergoing purification processes such as coagulation, sedimentation, and filtration, it is still impossible to remove harmful bacteria. The appearance of groundwater is clean and transparent The water quality is generally better than surface water, but shallow groundwater (such as large wells, seepage collection, etc.) Due to its proximity to the surface, it is easily affected and polluted by the surrounding environment Even if it is groundwater, although it is buried deep from the ground surface, pollution may still occur at the head of the groundwater or due to poor construction or inadequate sealing of the wellhead. It can be seen that disinfection is essential for both surface water and groundwater It should be pointed out Most bacteria in water adhere to suspended particles, and through processes such as coagulation, sedimentation, and shaking, most bacteria can be removed from water. 2. There are many antivirus methods for water, which can be basically divided into two categories: physical methods (such as boiling, soaking, etc.) and chemical methods (such as grasping, softening, and metal ion disinfection). In water supply treatment, the commonly used antivirus agent is "catching", and the main sources of catching are liquid atmosphere, bleaching powder essence, etc. Suitable for small-scale and decentralized water supply systems in rural areas, there is also a secondary sodium sulfate generator made from salt water as raw material Our township water plants in our province use chemical methods for disinfection, generally using liquid capture and other disinfectants. Scsxccom20210809