Semipermeable Membrane Definition
Semipermeable membrane is a thin, soft, pliable sheet of material that allows certain substances to freely pass through it while restricting the passage of other substances. In the water treatment field, a semipermeable membrane allows water to pass freely while restricts the passing of dissolved materials.
Water passes through a semipermeable membrane into a solution of higher salt concentration. This phenomenon is called Osmosis. The semi-permeable membrane is a material through which water may pass, but prohibits the traveling of nearly everything else. Because of pressurized feed water enters each pressure vessel, a portion of the incoming water goes through the semipermeable membrane. The semi-permeable membrane selectively restricts the passage of suspended and dissolved elements in the raw water.
Semipermeable membrane separating TDS and TSSÂ
The incoming supply water and the dissolved and suspended substances which don’t pass throughout the semipermeable membrane go to waste. One stream enters an RO system and two streams exit. The permeate is the water stream and small amount of TDS which goes through the Semipermeable Reverse Osmosis membrane. While the concentrate is the waste stream containing the water and elements which don’t go through the semipermeable membrane. The concentrate is simply concentrated incoming stream of water. The concentrate contains the TDS and the TSS that are not allowable to pass through the semipermeable membrane.
Read more about the RO Membrane.
- Published in Technology, Water Treatment
Reverse Osmosis RO Membrane Element
BQUA provides RO membrane element manufactured by major market leaders of the industry. From tap water, brackish and seawater RO membrane elements. Of the RO Membranes BQUA proudly offers: Dow Filmtec, Hydranautics and Toray. BQUA only provides its customers with the highest quality and top-rated membrane materials for a lifetime operation without any problem. Below are the elements provided by the company. Please feel free to browse the brand names and you can always contact our technical sales department for more information regarding a specific application or solution.
