Filmtec BW30-400
Filmtec BW30-400
Filmtec BW30-400
FILMTEC Membranes
8" BW30-400 High Surface Area Brackish Water RO Element
The FILMTEC BW30-400 element instead of from the use of higher flux targets with fewer elements.
has a nominal active membrane area membrane or elevated feed pressure, This can mean more compact sys-
of 400 square feet (37 m2) and an the rate of membrane fouling remains tems and significantly lower system
average permeate flow of 10,500 gpd low. This means higher flow rates can component and installation expense.
(40 m3/d) under standard conditions, be sustained over time and element The productivity advantages of the
yet external element dimensions are service life is prolonged. Lower pres- FILMTEC BW30-400 element can
identical to those of conventional 8" sure operation also means system also be employed in the design of new
elements. Because the high productivi- operating economy is enhanced. systems that produce the desired gpd
ty of the FILMTEC BW30-400 element The high surface area of the FILMTEC (m3/d) while operating at lower feed
results from increased surface area BW30-400 element permits design of pressures.
and increased element efficiency new RO systems that meet productivity
Product Specifications
Nominal Active Surface Product Water Flow Stabilized Salt
Product Area ft2 (m2) Rate gpd (m3/d) Rejection CI- (%)
BW30-400 400 (37) 10,500 (40) 99.5
1. Permeate flow and salt rejection based on the following standard conditions: 2000 ppm NaCI. 225 psi
(1.6 MPa), 77F (25C), pH 8, and 15% recovery.
2. Flow rates for individual elements may vary but will be no more than 7% below the value shown.
3. Minimum salt rejection for individual elements is 98.0%.
B DIA C DIA
Operating Limits
Membrane Type .............................................................................Thin-Film Composite
Maximum Operating Pressure............................................................600 psi (4.1 MPa)
Maximum Operating Temperature .............................................................113F (45C)
Maximum Feed Turbidity ......................................................................................1 NTU
Free Chlorine Tolerance...................................................................................<0.1 ppm
pH Range, Continuous Operation...........................................................................211
pH Range, Short-Term Cleaning (30 min.) .............................................................112
Maximum Feed Flow ...........................................................................85 gpm (19 m3/h)
Maximum Feed Silt Density Index .........................................................................SDI 5
FILMTEC Membranes FilmTec Corporation is a wholly owned subsidiary of The Dow Chemical Company.
FILMTEC Membranes
For more information about FILMTEC membranes,
call Dow Liquid Separations business:
North America . . . . . . . . . . .1-800-447-4369
Latin America . . . . . . . . . . .(+55) 11-5188-9345
Europe . . . . . . . . . . . . . . . .(+31) 20-691-6268
Japan . . . . . . . . . . . . . . . . .(+81) 3-5460-2100
Australia . . . . . . . . . . . . . . .(+61) 2-9776-3226
http://www.dow.com/liquidseps
Stabilized Salt Rejection Figure 1. Stabilized salt rejection Important Operating Information
performance of FILMTEC 1. Keep elements moist at all times
The minimum salt rejection elements after system startup
specifications set by FilmTec were after initial wetting.
100
established primarily for quality assur- 2. If operating specifications given in
99.5
ance (QA) purposes to ensure the % Rejection this Product Information bulletin
99
integrity of each element we produce. 98.5 are not strictly followed, the limited
A stabilized salt rejection specification 98 warranty will be null and void.
is provided as a supplement to the 97.5
minimum specification to provide a 3. Permeate obtained from first hour
97
Notice: The use of this product in and of itself does not necessarily guarantee the removal of cysts and pathogens from water.
Effective cyst and pathogen reduction is dependent on the complete system design and on the operation and maintenance of the system.
Notice: No freedom from any patent owned by Seller or others is to be inferred. Because use conditions and applicable laws may differ from one
location to another and may change with time, Customer is responsible for determining whether products and the information in this document are
appropriate for Customers use and for ensuring that Customers workplace and disposal practices are in compliance with applicable laws and
other governmental enactments. Seller assumes no obligation or liability for the information in this document. NO WARRANTIES ARE GIVEN; ALL
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY EXCLUDED.