RO membrane

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1. ULP Series of Membrane Element

Brief Introduction

 ULP series of ultra-low pressure aromatic polyamide compound membrane element is newly developed which can work under ultra low pressure to reach as high permeate flow and salt rejection as regular low-pressure membrane element can, and is applicable to desalination of surface water and underground water. It operates under approximately 2 thirds of the operating pressure of regular low-pressure composite membrane, and achieves a salt rejection rate of up to 99.5%, which can decrease the investment costs for such relevant facilities as pump, piping, and container, etc. and the operating cost for the RO system, thus increasing the economic efficiency.

     Being suitable for the desalting treatment of those water sources with salt concentration lower than 2000 ppm, such as surface water, underground water, tap water and municipal water, etc., ULP series membrane elements are mainly applicable to numerous applications of various scales, such as pure water, boiler water replenishment, foodstuff processing, and pharmaceutical production, etc.

 

2. Specifications and Major Properties

 

ULP series 8 inch membrane element

Model		ULP21-8040	ULP12-8040	ULP22-8040	ULP32-8040
Function	Stable Rejection Rate %	99.0	98.0	99.0	99.5
	MinimumRejection Rate%	98.5	97.5	98.5	99.0
	Average Permeated Flow GPD(m­­³/d)	11000(41.6)	13200(49.9)	12100(45.7)	10500(39.7)
	Active Membrane areaft2(m2)	365(33.9)	400(37.0)	400(37.0)	400(37.0)
test standard	Test pressure	150pai(1.03Mpa)
	Temperature of Testing Solution	25°C
	Concentration of Testing Solution (NaCl)	1500ppm
	Test fluid ph value	7.5
	Single membrane element recovery	15%
limitation usage standard	Maximum Pressure	600psi(2.07Mpa)
	Maximum Operating Temperature	45°C
	Maximum Feed water SDI	5
	Maximum Chlorine Concentration	<0.1ppm
	pH Range of Feedwater during Continuous Operation	3~10
	pH Range of Feedwater during Chemical Cleaning	2~12
	Maximum Pressure Drop for Each Element	15psi(0.1Mpa)

 

RO membrane