● Purification of surface water.
● Reuse of heavy metal waste water.
● Pretreatment of RO.
Below filtration effects are proved according to the use of modified PVDF hollow fiber ultrafiltration membrane in different types of water:
| No. | Item | Water?Output?Index |
| 1 | TSS | ≤1mg/L |
| 2 | Turbidity | ≤ 1 |
Size

Chart 1 MBR Size
| Filtering?Direction | Outside-in |
| Membrane?Material | Reinforced?Modified?PVDF |
| Precision | 0.03 ?micron |
| Membrane?Area | 25m2 |
| Membrane?ID/OD | 1.0mm/ 2.2mm |
| Size | 785mm×2000mm×40mm |
| Joint?Size | DN32 |
| Component | Material |
| Hollow?Fiber?Membrane | Reinforced?Modified?PVDF |
| Sealing Compound | Epoxy?Resins?+?Polyurethane (PU) |
| Housing | ABS |
Proper pretreatments must be set when raw water contains a lot of impurities/coarse particles or large proportion of grease. Defoamer must be used to remove foams in membrane tank when necessary, please use alcoholic defoamer which is not easy to scale.
| Item | Limit | Remark |
| PH?Range | 5-9 (2- 12 when?washing) | Neutral?PH?is?better?for?bacterial?culture |
| Particle?Diameter | <2mm | Prevent?sharp?particles?to?scratch?membrane |
| Oil?&?Grease | ≤2mg/L | Prevent?membrane?fouling/sharp?flux?decrease |
| Hardness | ≤150mg/L | Prevent?membrane?scaling |
| Designed?Flux | 15~40L/m2.h |
| Backwashing?Flux | Twice?the?designed?flux |
| Operating?Temperature | 5~45°C |
| Maximum?Operating?Pressure | -50KPa |
| Suggested?Operating?Pressure | ≤-35KPa |
| Maximum?backwashing?Pressure | 100KPa |
| Operating?Mode | Continuous?opeartion, intermittent?backwashing?air?flushing |
| Blowing?Mode | Continuous?Aeration |
| Aeration?Rate | 4m3/h.piece |
| Washing?Period | Clean?water?backwashing?every?1~2h; CEB?every?1~2 days;Offline?washing?every?6~12 months
(Above?information?is?for?reference?only, please?adjust according?to?actual?differential?pressure?change?rule) |
By Jamie from Brunei - 2018.09.12 17:18
By Lee from Israel - 2018.02.08 16:45