Sperta System
en English
MBR Reference IX

How to Clean MBR Membranes by Chemical

Last Updated on February 27, 2022 by Kevin Chen

When colloidal or dissolved microbial metabolites adsorb onto the surface of the membrane, and washing/air blowing cannot remove them. Which also caused TMP to rise. It is required the maintenance of chemical cleaning.

Step 1: Stop the suction pump and close the water pipe.

Step 2: Stay for 1 minute, close the blower to stop aeration.

Step 3: Open the dosing pipe, run the dosing pump, and inject the cleaning solution.

Step 4: Dilute the residual chlorine in the treated water before discharge.
Or return the treated water to the aerobic tank for residual chlorine dilution.

Step 5: Finish the above operations, open the suction pipe, run the suction pump, and resume regular operation.

SPERTA MBR - Display 4

PS:

● Type of chemical: NaClO, effective chlorine concentration 100~500ppm; 0.1 – 0.2% HCl, citric acid or oxalic acid.

● Chemical cleaning duration: 5 ~ 10 min.

● Cleaning frequency: TMP increases by more than 30 kPa or per 1 to 12 weeks after operating.

Record the duration when the TMP at the initial stabilization increases by 30 kPa and set it as one cycle. Regularizing the chemical cleaning can effectively extend the life-span of the membrane.

Kevin Chen

Kevin Chen

Hi, I'm the author of this post, and I have been in this field for more than 5 years. If you want to wholesale MBR membrane or water treatment related product, feel free to ask me any questions.

Like this article?

Share on Facebook
Share on Twitter
Share on Linkdin
Share on Pinterest

More to explorer

What Is The MBR Membrane Process?

What Is The MBR Membrane Process?

The MBR Membrane process combines membrane separation technology with bioreactors for sewage treatment. It not only saves the construction of the secondary sedimentation tank but also greatly improves the efficiency of solid-liquid separation.

Leave a comment

Need MBR Membrane for your plants?
Get The Latest Updates

Subscribe To Our Newsletter

No spam, notifications only about new article updates regarding MBR membrane Technologies.

Keep In Touch

+ 86 19950071757

kevin@spertasystems.com

Sperta MBR White Logo

Your Most Reliable MBR Membrane Supplier

————Register Our Newsletter————

Shanghai Sperta Environmental Technology Co., Ltd. All Rights Reserved © 2021

Sperta System

Ask For A Quick Quote

We will contact you within 6 hours, please pay attention to the email with the suffix “@spertasystems.com”.