I. Overview

CPA3-LDThe membrane elements adopt those that change shape and size31milThe water inlet screen enablesCPA3-LDThe operating pressure and pressure loss have both decreased significantly. At the same time, due to the change of the water inlet screen,CPA3-LDThe pollution resistance of membrane elements has also been significantly enhanced, reducing the cleaning frequency of reverse osmosis systems and extending the service life of membrane elements.

Ii. Main Uses

CPA(Composite PolyamideThe series of membrane elements are composite polyamide reverse osmosis membranes that achieve a balance between high desalination rate and high water permeability during low-pressure operation. BecauseCPAThe membrane has the ability to removeSiO2,TOCTherefore, it is suitable for the treatment of industrial water such as ultra-pure water for the electronics industry and boiler feed water for power plants.

Iii. Performance Specifications

CPA3-LDBasic performance specifications for membranes

Performance test conditions usage conditions

Pressure225psi(1.6Mpa)

High operating pressure600psi(4.14Mpa)

Average desalination rate％99.7

Test temperature25℃

High inlet flow rate75gpm(17m3/h)

Average water permeation

GPD(m3/d)11000(41.6)

Test concentration(NaCl)2000ppm

Inlet water temperature5～45℃

Effective membrane areaft2(m2)400(37.2)

TestpHvalue6.5～7

"Big water inflow"SDI5

Recovery rate of a single membrane element15%Test time30The free chlorine concentration of the influent after minutes0.mg/L

"Clean"pHScope2～10A single membrane element allows for a large pressure drop10psi(0.07Mpa)