Water Treatment

Softening

Industrial water softening is a process that utilizes ion exchange resins to reduce the concentration of calcium and magnesium ions. These alkaline earth metals can cause scaling and insolubility problems in the everyday uses of water by forming calcium and magnesium carbonate scales.

Typically, a Strong Acid Cation (SAC) resin is used and regenerated with sodium chloride (brine). In cases of high TDS water or high hardness levels, the SAC resin is sometimes preceded by a Weak Acid Cation (WAC) resin.

Softening Available Resins: GC104, GC107, GC108, MC001, MC113

Demineralization

Also referred to deionization, is typically described as the removal of all cations (e.g. calcium, magnesium, sodium, potassium, iron and other heavy metals) and anions (e.g. bicarbonate alkalinity, chloride, sulfate, nitrate, silica and CO2) from a solution in exchange for H+ and OH- ions. This reduces the total dissolved solids of the solution. This is required for many sensitive processes, such as high pressure boiler operation, food and pharmaceutical applications, and electronics production

Demineralization available resins: GC107, GC108, GC109, GC110, GC116, MC001, MC113, GA102, GA104, GA105, GA107, GA202, GA213, MA201, MA202, MA213, MA301

DL407 is for nitrate removal from the potable water,

DL408 is for arsenic removal from low sulfuric acid solution,

DL403 is for boron from potable water,

Ultrapure Water

Dongli MB series are ready to use mixed bed resins for ultrapure water are specially manufactured to meet the precise needs of the electronics industry for wafer and microchip production. These needs require the highest possible water quality (<1 ppb Total Organic Carbon (TOC) and >18.2 MΩ·cm resistivity, with minimum rinse times), while eliminating contamination of the high purity circuits when ion exchange resin is first installed.

MB100 is for EDM wire cutting,

MB101, MB102, MB103 are for ultrapure water,

MB104 is for condensate polishing in power plant.

Dongli also supply indicator MB resin, when the resin fails it will show another color, promptly reminding user to replace or regenerate in time.