Low-Pressure Spiral RO Membrane Element
NTR-729HF

High water permeability flow at ultra-low pressure.

Outline

NTR-729HR demonstrates high separation performance at lower operating pressures compared to conventional cellulose acetate reverse osmosis membrane elements. The NaCl rejection is over 90%, and the performance of low molecular weight organic compound rejection is also very high.

Features

• A low pressure RO element which uses a synthetic high polymer composite membrane (PVA), realizing over 90% NaCl rejection rate at high water permeate flow.
• The synthetic high polymer reverse osmosis membrane deals with bacterial attacks.
• High removal performance and water permeate flow at low pressure operations under 1MPa. Also exhibits superior removal performance of organic compounds (valuable components and TOC).

Applications

NTR-729HF is available for:

• Ultrapure water systems for semiconductors
• Desalination of river water and brine water
• Concentration and refining for bulk pharmaceuticals
• Desalination in advanced sewage treatment

Size

NTR-729HF-S8	Φ201×1,016L[mm]
NTR-729HF-S4	Φ99.5×1,016L[mm]
NTR-729HG-S4F	Φ99.5×1,016L[mm]
NTR-729HG-S2F	Φ61×1,016L[mm]

Performance

Element form	NaCl rejection (％)		Permeate flow[m 3 /d]
	Nominal	Minimum	Nominal	Minimum
NTR-729HF-S8	92.0	90.0	36	29
NTR-729HF-S4	92.0	90.0	8	6.5
NTR-729HG-S4F	-	90.0	-	6.5
NTR-729HG-S2F	-	90.0	-	2

[Measurement method]

*Evaluation solution: 0.15% NaCl solution

*Operating pressure: 0.98MPa

*Water Temperature: 25°C

*Concentrate fluid flow: S8=90L/min S4, S4F=20L/min S2F=8L/min

[Remarks]

*The figures are a sample of observed values, not guaranteed performance.