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AQU225 × 1860-w-pvc-100kh (UPVC) technical parameters

Membrane material Modified PVC

Internal and external diameter of fiber 0.9mm/1.6mm

Molecular weight of membrane wire cutting 100K

Effective outer membrane area 63.1m2

Wire loading 9000 PCs

Pure water flux 8873L/H (0.1Mpa,25℃)

Component design water yield 6~56L/ m2.h

Shell material UPVC

End sealing material epoxy resin

Water inlet and outlet interface DN40

Service conditions

Pretreatment 50-100um

Operation mode External pressure operation

working pressure 0.02-0.2Mpa

Maximum inlet pressure 0.3MPa

Maximum membrane pressure difference 0.2MPa

Influent pH value 2-12

Continuous residual chlorine concentration is tolerable 100 ppm

Intermittent residual chlorine concentration is tolerable 200 ppm

Service temperature 5℃-45℃

Produced water quality

*Turbidity of produced water < 0.2NTU

*Pollution density index (SDI) < one

Particles (> 0.2 µ m) 100% removal

Microorganisms and pathogens 99.99% removal

Backwashing design

Backwashing frequency Once every 20-60 minutes

Backwashing pressure ≤0.2MPa

Backwash flow 150-200L/ H.m2

Backwashing dosing agent 5-15ppm sodium hypochlorite

Maintenance cleaning (CEB chemical enhanced backwashing)

Sodium hypochlorite reagent 200 ~ 500ppm sodium hypochlorite (it can be adjusted according to the specific water quality)

Acid maintenance Lotion 0.2% hydrochloric acid (it can be adjusted according to the specific water quality)

Alkali maintenance Lotion 0.05% NaOH (it can be adjusted according to the specific water quality)

Chemical cleaning design

Chemical cleaning flow 80L/ m2 .h

Chemical cleaning frequency Every 1-4 months

Pickling agent 2% citric acid, 2% oxalic acid or 0.5% hydrochloric acid (prepared into a solution with pH = 2)

Alkali washing agent 0.5% NaOH + 100 ~ 1000ppmnaclo (prepared into a solution with pH = 12)

Note: * refers to raw water test with turbidity of 15ntu under test conditions of 25 ℃ and 0.1MPa.