Water reuse equipment is not cleaned in time will lead to what damage

Water reuse equipment will be contaminated during use, the length of time is not the same contamination, the symptoms are not the same. Such as: calcium carbonate scale membrane contamination occurred when membrane fouling time of one week, mainly for the rapid decline in salt rejection, slowly increasing pressure, no significant changes in water production, washed with citric acid completely restore performance. Pollution time is one year, a salt flux is increased, decreased production of water, the washing water can be greatly improved yield. Here to tell us about water reuse equipment cleaning which can cause damage not timely.

　　Pollution is often not a single symptom its performance also have some differences, making it more difficult to identify contamination.
　　Identification of the type of contamination to be integrated raw water quality, it is determined design parameters, pollution index, log, device performance and Microbial indicators:
　　1, colloidal contamination: occurs colloidal pollution, usually accompanied by the following two characteristics:
　　(1) pre-treatment in microfilter clogging quickly, especially pressure increases rapidly,
　　(2) the SDI value is usually 2.5 or more.
　　2, microbial contamination: microbial contamination occurs, the total number of bacteria permeated water and concentrated water apparatus are high, usually have no maintenance and sterilization as required.
　　3, calcium scale: determination may be made based on the raw water quality and design parameters. Of water in terms of carbonate, if recovery of 75%, adding the designed inhibitors, the LSI concentrate should be less than 1; LSI concentrate without scale inhibitor should be less than zero, typically It does not produce calcium scale.
　　4, the available acid (such as citric acid, dilute of HNO3), and the cleaning effect The cleaning liquid is determined limescale, the cleaning liquid composition is further confirmed by analysis.
　　5, a cleaning liquid chemical analysis: Take the raw water, cleaning liquid, cleaning liquid, three sample analysis; After determining the type of contamination, and then sterilization and cleansing.
　　About water reuse equipment cleaning is not timely introduction which can lead to damage on here, not timely cleaning can cause so much damage, so remember to flush the system, understand the reverse osmosis membrane water reuse water treatment system how to clean, proper cleaning water reuse equipment.