Low Pressure RO Membrane Element Lp21-4040

Specifications


1. Model: LP21-4040
2. Reject(%): 99.5
3. Average Permeate GPD(m3/d): 2400(9.1)
4. Active Membrane Area ft2(m2): 85(7.9)



Brief Introduction

The LP (low pressure) series of aromatic polyamide compound membrane element developed by Vontron Technology Co., Ltd. Has the properties of low-pressure operation, high permeate flow and excellent desalination and are applicable to desalination of brackish water. Besides, it is particularly applicable to fabrication of high-purity water for electronic industry and electric power industry owing to its excellent performance in removing soluble salts, TOC, SiO2, etc.

Being suitable for desalting such water sources as surface water, underground water, tap water and municipal water, etc., LP series is mainly applicable to treatment of various industrial water such as industrial-purpose pure water, boiler water replenishment in power plant, and can be also applied to such brackish water applications as treatment of high-concentrated saline wastewater and production of beverage-purpose water.



Specifications and Major Properties

Model
Active Membrane Area
Ft2(m2)
Average Permeated Flow
GPD (m3/d)
Stable Rejection Rate (%)
Minimum Rejection Rate (%)
LP21-8040
365(33.9)
9600(36.3)
99.5
99.3
LP22-8040
400(37.0)
10500(39.7)
99.5
99.3
LP21-4040
85(7.9)
2400(9.1)
99.5
99.3

Testing Conditions: Testing Pressure...225 psi (1.55Mpa)

Temperature of Testing Solution...25 ° C

Concentration of Testing Solution (NaCl)...2000ppm

PH Value of Testing Solution...7.5

Recovery Rate of Single Membrane Element...15%



Operation limits and Conditions

Max. Working Pressure...600psi(4.14Mpa)

Max. Feedwater Flow...75gpm (17 m3/h) (8040)

16gpm (3.6 m3/h) (4040)

Max. Feedwater Temperature...45° C

Max. Feedwater SDI...5

Residual chlorine Concentration of Feedwater...<0.1ppm

PH Range of Feedwater during Continuous Operation 3~10

PH Range of Feedwater during Chemical Cleaning...2~12

Max. Pressure Drop of Single Membrane Element...15psi(0.1Mpa)