Sea Water High Rejection

CleanTech Engineering Limited

Category: Industrial Product

Description:

Membrane Material: Composite Polyamide
Membrane Type Design: ORM45KM Spiral wound

Model	Flow*		Rejection	Area		Spacer
	M3/hr	GPD	Normal/minimal*	m2	ft2	mm	mil
КМ 8040-С1М1	1,26	8000	99,8/99,6	39	420	0,72	28
КМ 8040-С2М1	1,20	7600	99,8/99,6	37	400	0,79	31
КМ 8040-С3М1	1,12	7100	99,8/99,6	35	375	0,86	34
КМ 4040-С1М1	270	1700	99,75/99,4	8,0	86	0,72	28

Test Conditions (for 8040-CM (2,3)): test solution of NaCl 32 g/l, P=5,5 MPa, T=25°C , pH=7,5. Recovery – 10%
Test Conditions (for KM 4040-C1M1): test solution of NaCl 32 g/l, P=5,5 MPa, T=25°C, pH=7,5. Recovery -8%
Nominal rejection is reached after 48 hours of continuous operation on test solution.
Minimal rejection of a new element after 20 minutes test on test solution.

Operating conditions and technical data for designing:

Recommended operation pressure, MPa			4,5-6,5
Maximum operation pressure, MPa			7
Maximum pressure drop, MPa			0 ,1
Operation temperature, 0 c 11			4-45
pH at continuous operation at T<35°C			2-11
pH at continuous operation at T<45°C			3-10.5
Chemical cleaning, temperature, °C* ***	T<45	T<35	T<25
CIP pH (short time operation)	2-11	1-13	1-13²⁾
Free chlorine content, mg/I max			0,1
Maximum feed flow, m3/hr		17 (KM 8040-CM (2,3)) 3,6 (KM 4040-C1M1)
Concentrate/permeate ratio on each element, min			10:1
SDI (15 minutes test), max			5
Turbidity, NTU max			1

During continuous work with pH over 10,5 the temperature must not exceed 35°С. 2) Flow of each element in a batch may vary +/-15%. *In case of chemical cleaning with a solution pH exceeding 11,5 or at the temperature level more than 45°С please contact original manufacturer for consultation.