1results about How to "Handling process safety" patented technology

This invention discloses a low-temperature sterile nanofiltration membrane treatment process for high-quality direct drinking water, mainly comprising: tap water, which passes through a delivery pump and a precision filter, and enters a nitrogen-sealed inlet tank; a vacuum system expels air from the nanofiltration (NF) membrane treatment system; a nitrogen generation system produces nitrogen gas with 99.5% purity, which is independently controlled by valves to replenish nitrogen gas to the nitrogen-sealed inlet tank, the NF membrane treatment system, and the NF membrane direct drinking water tank; after the nitrogen purity in the NF membrane treatment system meets the standard, the NF membrane treatment system is turned on, and the NF membrane permeate enters the NF membrane direct drinking water tank, passes through a nano-silver sterilization device, and is then transported to the end user by an external pump; the NF membrane concentrate is discharged into a rainwater well or a sewage well through an NF membrane concentrate discharge pipe. The high-quality direct drinking water nanofiltration membrane treatment process provided by this invention has the following advantages: the process is safe and reliable, improves the taste of NF membrane direct drinking water, reduces NF membrane fouling, and is easy to maintain.