Process flow of ultra-pure water equipment used in the battery industry

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This post was last edited by hesonchang214 on 2019-9-22 at 11:13.
Using the ion exchange method:
The process is as follows: Source water → Source water booster pump → Multi-media filter → Activated carbon filter → Water softener → Precision filter → Cation resin filter bed → Anion resin filter bed → Mixed cation-anion resin bed → Micro-porous filter → Point of use.

Using the two-stage reverse osmosis method:
The process is as follows: Source water → Source water booster pump → Multi-media filter → Activated carbon filter → Water softener → Precision filter → First-stage reverse osmosis unit → pH adjustment → Intermediate water tank → Second-stage reverse osmosis unit (with positively charged reverse osmosis membrane surface) → Purified water tank → Purified water pump → Micro-porous filter → Point of use.

Using the electro-deionization (EDI) method:
The process is as follows: Source water → Source water booster pump → Dual-chamber filter → Water softener → Intermediate water tank → Low-pressure pump → Precision filter → First-stage reverse osmosis unit → EDI system → Micro-porous filter → Point of use