echemi logo
Product
  • Product
  • Supplier
  • Inquiry
    Home > Active Ingredient News > Drugs Articles > What is the cause of reverse osmosis membrane congestion in medical purified water equipment?

    What is the cause of reverse osmosis membrane congestion in medical purified water equipment?

    • Last Update: 2020-07-31
    • Source: Internet
    • Author: User
    Search more information of high quality chemicals, good prices and reliable suppliers, visit www.echemi.com
    Due to the water pollution according to seasonal changes, water quality is poor, and long-term operation of its RO reverse osmosis equipment, resulting in reverse osmosis membrane pollution in equipment components, frequent cleaning.
    at the same time reverse osmosis membrane cleaning is a high technical requirements of the work, according to different water quality, pollutant characteristics of analysis, summarized some reverse osmosis membrane pollution causes.
    common membrane pollution blocking situation has the following: 1, colloidal blocking is a common phenomenon, whether it is groundwater or surface water, total contains iron aluminum colloid, silicone colloid, organic colloid, pretreatment added to the coagulant, coagulant, scale inhibitor and other formation of colloids, these may be deposited on the membrane surface to form colloidal pollution.
    2, biological pollution blocking mainly occurs in the water treatment system frequency and the system of extensive start-stop operation.
    single fungicide is not to kill all kinds of bacterial microorganisms in the water, the system is located in the dead end area, or the time of discontinuation caused by the growth and reproduction of bacterial microorganisms, adhere to the membrane surface to form a biomustic membrane.
    3, fouling often occurs in two sections, by concentrated salt water excessive dissolved salt precipitation and fouling. the
    is shown as the increase of the primary pressure drop, the desalination rate decreases, and the force decreases.
    can be controlled as long as the recovery rate and the amount of scale inhibitor swellcants are adjusted.
    4, often particle pollution congestion mainly occurs in the front end of the equipment. the main reason for
    is that the new system is not thoroughly flushed when delivered, and corrosion fragments such as fine sand pass through.
    or run high pressure difference, so that the diaphragm on the edge of the membrane falls off and plugs into the front end of the next membrane.
    these are mechanical stains and are preventable.
    reverse osmosis film in the use of medical purification water equipment, will be contaminated by water debris, because of the water quality is different, the pre-treatment process methods adopted are also different, so the reverse osmosis of pollutants are different, the speed of pollution blocking is very different, speed up the rate of pollution and the complexity of pollution, increase the difficulty of cleaning.
    .
    This article is an English version of an article which is originally in the Chinese language on echemi.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to service@echemi.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

    Contact Us

    The source of this page with content of products and services is from Internet, which doesn't represent ECHEMI's opinion. If you have any queries, please write to service@echemi.com. It will be replied within 5 days.

    Moreover, if you find any instances of plagiarism from the page, please send email to service@echemi.com with relevant evidence.