Product introduction

E-MEM industrial NF membrane element is mainly used to remove organic matter, microorganism, virus and most divalent and above metal ions in water, and retain some sodium (Na) and potassium(K) plasma. Nanofiltration membrane separation process does not have any chemical reaction, no phase transformation, no heating, will not destroy the biological activity, widely used in drinking water devices, sewage treatment and food, medicine, biological engineering and other industries in the liquid separation and concentration purification process.

Performance parameters of membrane element

E-MEM® industrial 4040 NF membrane element parameters

Models		Permeate Flow GPD （m³/d）	rejection（%）	Active membrane area ft²(m²)	Testing pressure Psi (MPa)	Testing condition
EM-NF-4040-R40		2400（9.1）	>=95	90.4（8.4）	100（0.69）	500ppm MgSO4
EM-NF-4040-R40-HR		2100（7.9）	>=98	90.4（8.4）	70（0.48）	2000ppm MgSO4
EM-NF-4040-R40-HF		2700（10.2）	>=97	90.4（8.4）	70（0.48）	2000ppm MgSO4
EM-NF-4040-R85		2000（7.6）	>=98	90.4（8.4）	100（0.69）	500ppm MgSO4
Other testing condition	Temperature（℃）	25.0±1.0
	Feed water pH	7.5±0.5
	recovery（%）	15.0±1.0
available		Dry & Wet

Specification and size

4040 NF size

Model	A(±2.0mm)	B(±1.0mm)	C(±0.1mm)		D(±0.1mm)
EM-NF-4040-R40	1016	100		19.1(OD)	26.7
EM-NF-4040-R40-HR	1016	100		19.1(OD)	26.7
EM-NF-4040-R40-HF	1016	100		19.1(OD)	26.7
EM-NF-4040-R85	1016	100		19.1(OD)	26.7

Ultimate service conditions

Max.operating pressure----------------------------600psi（4.14MPa)

Max.feed water temperature ----------------------45℃

Max. feed water flow------------------------------ 16GPM（3.6m3/h）

Max.feed SDI15--------------------------------------5

Feed free chlorine concentration -------------- ＜0.1ppm

pH range, continuous running --------------------2~11 (R40-HR& HF) 3-10 (R40 & R85)

Feed PH range when chemical cleaning ---------- 1~12 (R40-HR& HF) 2-12 (R40 & R85)

Maximum pressure drop(single membrane)- ---- 15 psi（0.1MPa）

matters needing attention

①. The data and information provided byHangzhou E-MEM Environmental Technology Co., Ltd in this sample are allobtained through long-term experiments, and we are convinced that these dataand information are accurate and effective. Customers are requested to use theproduct in strict accordance with the design, use and maintenance requirementsof the product and keep relevant data records. Hangzhou E-MEM EnvironmentalTechnology Co., Ltd shall not bear any consequences arising from customers' failureto use and maintain the products in accordance with the conditions provided bythis sample.

②. The permeate flow listed in thetable is the average value, and the deviation of single membrane element ofpermeate flow is ±20%.

③. Before products leaving the factory,the dry membrane element has no protective liquid, while the wet membraneelement is stored and treated with 1.0% sodium bisulfite (10% glycerinantifreeze added in winter) solution and vacuum-packed.

④. Dry membrane elements should alwaysbe kept wet after wetting. When wet membrane element is not used for a longtime, in order to prevent the growth of microorganisms, it is recommended tosoak the membrane element with protective liquid containing 1.0% sodiumbisulfite (food grade) (prepared with RO production water).

⑤. For initial use of membraneelements, it is recommended to flush first at low pressure for 15-25 minutesand then at high pressure for 60-90 minutes (water production not less than 50%of the system design). All production and concentrated water shall bedischarged within the first hour of membrane element operation.

⑥. It is prohibited to add any chemical agentthat has an impact on the membrane element in storage and operation. If suchchemical agent is violated, Hangzhou E-MEM Environmental Technology Co., Ltdwill not bear all the consequences arising therefrom.

application area

Drinking water：residential and municipal water treatment

Industrial public facility use: Pretreatment for high hardness water

Special solutions：Biomedicine, pesticide industry, refined salt, desulfurization, brine denitrification, etc.

Industrial wastewater：Printing and dyeing wastewater, landfillleachate and etc.

Mark, above is the normal popular residential NF for global customers, we also can supply others models NF products. OEM and ODM is available

RO Membrane

NF membrane

UF membrane module

submerged UF (TXP)