Two stage RO system
This water treatment system uses mechanical filters, activated
carbon filter as a pre-class treatment, the effective removal of
suspended solids in raw water, sediment particles , organic
colloids, organic matter, odor, chlorine and other impurities, with
pre-programmed as a reverse osmosis desalination plant to remove
the raw water. Most of the dissolved salts, bacteria, hot stream
and so on, to ensure finished water quality standards.
If raw water conductivity is less than 300uS/cm, first stage output
is less than 10uS/cm, two stage output is 2uS/cm
EDI system
EDI, also known as electric desalination. It is a new ultra pure
water technology which gradually developed in the 20th century. EDI equipment combined electro dialysis technology and
ion exchange technology. It is using the selectivity penetrate
function of anion and cation membrane and exchange function of ion
exchange resin, under direct current electric field to make ion
directed migration. Finally to make deep desalination of water. In
the same time, hydrogen ion and hydroxide ion which produced when
water ionize will regenerate ion exchange resin. So if use EDI
equipment, no need acid and alkali chemical to do any regeneration,
and it can produce ultra pure water continuously.
EDI input water must less than 10uS/cm, output water quality less
than 0.2uS/cm.
Polished mixed bed system
Polishing resins are generally used at the end of ultrapure water
treatment systems to ensure that the
system's effluent quality maintains water standards. Generally, the
effluent water quality can reach 18
megaohms or more. After the polishing resin fails, it is discarded.
Filled with resin, it can be used when
slowly passed through water.
Recycle water in pure water tank to minimize conductivity,
Resistivity more than 18MΩ.
Process
Untreated water feed pump →Quartz sand filtration→ Active carbon
filtration → Security filter → 1st stage high pressure pump →1st
stage RO system→2nd stage high pressure pump→2nd stage RO
system→EDI system→UV sterilizer→Polished mixed bed system→output
supply point
Optional Components
| A. Regulating wheels | B. PC Touch Screen |
| C. Two-stage RO system | D. PH adjustment |
| E. CIP cleaning system | F. Auto or manual control valve |
| G. U-PVC or stainless steel pipe | H. UV sterilizer/Ozone Generator |
| I. Dosing system(anti-scale)/Water Softener | J. PE or stainless steel raw/pure water tank |
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