90bar Operation Pressure Dtnf Membrane Module for High TDS Water

• Customization: Available
• Membrane Type: Disc Tube
• Type: NF
• Model NO.: DTNF-8042
• Membrane Area: >9.4 Square Meter
• Stable Rejection: 98.0%
• Membrane Sheet: Filmtec
• Cross Replacement: Rochem, Rotreat, Pall
• Vessel Material: FRP
• Transport Package: Wooden Box
• Trademark: RisingSun
• Origin: China
• HS Code: 84212990
• Production Capacity: 300piece/Month

Product Description

Disc tubular membrane technology referred to as DT membrane or RCDT membrane (Radial Channel Disc Tube membrane module) or PT membrane (Plate Tube membrane module) which is the most advanced products in DT membrane module technology. The most common DT membrane products are (DTRO) and (DTNF).

RisingSun Membrane is a successful manufacturer of Disc Tube RO (DTRO) or so called RCDT membrane module mainly for landfill leachate and other high TDS / COD waste water.

This special design makes feed collide with the disc bulge through the membrane surface forming turbulence which increases flow rate and self-cleaning function and long service life of the membrane.

Features:

• High strength design, up to 120bar operation pressure
• Simple pre-filtration
• Open channel configuration enables low flow resistance and low concentration polarization, Minimize membrane scaling and fouling
• Easy to maintain
• High rejection and high recovery rates with low energy costs (up to 98.0%)
• Long membrane life
• Lower membrane replacement costs
• High quality product water

Application fields:

• Treatment & re-use of landfill leachate 
• High concentration of industrial waste water
• Effluent & waste water treatment from API, formulation plant & combined effluent from pharmaceuticals industry
• Effluent treatment from textile industry and dyeing unit
• Picking & oily waste treatment in steel industry
• Metal recovery waste recycling
• Traditional spiral RO / NF concentrate treatment 
• High COD/BOD waste water treatment (max. COD 20,000ppm)

Our advantages:

1. Cost is competitive and fast lead time.
2. Cross reference: Rochem DT module and PF module
3. Cross reference: Rotreat RCDT module

A typical process diagram:





90bar High pressure membrane module specification:
 

Items	High pressure (90bar)
Model	SP-DTNF-8042
Membrane sheet	Composite Polyamide (NF)
Membrane cushion qty. (pc)	209
Stable rejection**	98.0%
Min.  Rejection (%)	96.0%
Membrane effective area (m^2)	>9.4
Feed flux** (l/h)	500-1200
Permeate flux range (l/h)	450
Hydraulic disc material	ABS
Vessel material	FRP
Operation pressure (bar)	90
Max. TMP (bar)	9
Max. operation temperature (ºC)	40
Chlorine tolerance (ppm)	<0.1
Recommended operation pH	3-11
Chemical cleaning  pH@40ºC	2-12

** NF2 test condition: 2,000mg/l MgSO4 solution at 7bar applied pressure, 25ºC; Permeate flux and stable rejection may vary based on inlet water condition. There may have about ±20% change for individual module permeate flux.


 

Operation Pressure (bar)	90 bar
Total module length A (mm)	1400
Vessel length B (mm)	1150
Module diameter C (mm)	220
Vessel to top of frame D (mm)	98
Inlet to flange center distance E (mm)	76
Outlet to flange center distance F (mm)	56
Inlet & outlet connections diameter (mm)	12
Permeate connection (mm)	1 x  G3/8"-90° elbow for 9mm  hose

DTNF membrane module structure



 

Item	Name	Item	Name	Item	Name	Item	Name
1	Tie rod	7	End flange	13	O-ring 14-2	19	Reinforced top flange
2	Thick nut	8	Screwing tie rod	14	O-ring 52-4	20	Membrane vessel
3	Top flange	9	Tie rod gasket	15	O-ring 48-2	21	Reinforced rod
4	Distance fitting	10	Thin nut	16	Membrane cushion	22	Reinforced end flange
5	Hydraulic disc	11	Inlet/Outlet connection	17	O-ring 39-3	23	Reinforced nut
6	Lip seal	12	Permeate connector	18	Screwing tie rod