Introduction to laboratory water deionizer
laboratory water deionizer is a device specifically designed to provide high-purity deionized water (also known as pure water, deionized water. Or ultrapure water) in laboratory environments. These devices are widely used in experimental operations, sample preparation. And instrument cleaning.The working principle of deionized water equipment mainly adopt ion exchange technology. Ion exchange technology uses ion exchange resin to remove cations and anions from water. And through the interaction between cation exchange resin and anion exchange resin, removes ionic substances from water. Electrodeionization technology combines ion exchange resin and ion selective membrane, utilizing an external direct current electric field to induce directional migration of charged ions, thereby achieving deep desalination.
laboratory deionized water equipment includes the following steps
1.Pre treatment: Remove large particle impurities, colloids, and suspended solids through multi-stage pre-treatment filters (such as PP fiber filters, CTO, PPF).
2.Reverse osmosis (RO): Applying a certain pressure to water to allow water molecules to pass through a reverse osmosis membrane, and removing ionized mineral elements dissolved in water.
3.Ion exchange: Removing cations and anions from water through cation exchange resin and anion exchange resin.
4.UV sterilizer,remove bacteria in product water
Parameter of ultra pure water system laboratory
| Model | DI-15 | DI-30 | DI-45 | DI-60 | |||
| Output(25℃)* | 15 liters/hour | 30 liters/hour | 45 liters/hour | 60 liters/hour | |||
| Pure water outlet | One deionized water and one reverse osmosis water | ||||||
| Deionized water quality | |||||||
| Resistivity | 15-18.2MΩ.cm | ||||||
| Particle(>0.1μm) | N/A | N/A | N/A | N/A | |||
| RO water quality | |||||||
| Ion rejection rate | 96%-99% (new RO membrane) | ||||||
| Organic rejection rate | >99%, when MW>200 Dalton | ||||||
| Particles rejection rate | >99% | ||||||
| Feed water requirements | Tap water, temperature:5-45℃,pressure:1.0-4.0Kgf/cm2 | ||||||
| Electrical requirements | AC110-240V, 50/60Hz | ||||||
| Power | 55W | 60W | 70W | 78W | |||
The laboratory deionized water equipment removes ion impurities from water through various technical means. Providing high-purity deionized water that meets the strict requirements of the laboratory for water quality.