Ion‑exchange resins account for 90% of total resin consumption in water treatment. They remove anions and cations from water. Power plants consume the largest amount in pure‑water systems. They are also widely used in atomic energy, semiconductor and electronics industries.
Resin strength drop, breakage and pulverization often occur on‑site, resulting in higher pressure difference, poor water quality and shorter service life. There are six main causes for reduced resin strength:
✅1. Chemical Decomposition by Strong Oxidants
Cation resins are easily oxidized by strong oxidants such as residual chlorine in inlet water. Their polymer backbone breaks and strength decreases. After severe organic fouling, anion resins may also degrade and turn brittle.
✅2. Mechanical Friction and Wear
Frequent backwashing, hydraulic conveying, excessive flow rate, air / ultrasonic scrubbing cause collision and friction among resin beads, leading to wear and breakage.
✅3. Crushing under High Pressure Difference
Under high‑pressure and high‑flow‑rate operation, excessive pressure difference between inlet and outlet subjects resins to extrusion and shear force. Resins crack and pulverize, and debris may block the filter bed.
✅4. Fatigue Aging from Repeated Swelling‑Shrinking
Resins expand and shrink during transformation and regeneration. Large‑magnitude and rapid volume changes loosen the polymer backbone after repeated cycles, and the strength keeps declining.
✅5. Thermal Damage from Excessively High Water Temperature
Resins have limited thermal stability. Excessive water temperature causes bead cracking, which is especially obvious in high‑temperature working conditions such as condensate recovery systems.
✅6. Damage Caused by Improper Storage
Dried resin will swell and crack when exposed to water. If ambient temperature drops below 0 ℃, water inside resin beads freezes and expands, directly rupturing the particles.
????Summary
Resin damage comes from chemical corrosion, physical wear, working‑condition impact and improper storage. Good operation control over residual chlorine, water temperature, flow rate and pressure difference, together with standardized storage, can slow down resin damage and cut operating costs.
About Hebei Chengda Water Treatment Technology Co., Ltd.
Hebei Chengda Water Treatment Technology Co., Ltd. (short name: Chengda Water Treatment Technology) was founded in 1976, covering a land area of 160 mu. It is a high‑tech enterprise engaged in the R&D, production and sales of water‑treatment environmental‑protection products.
The company owns multiple registered trademarks including Winder®, Cenhon®, Arclion®, Winder‑G® and AOWY®. Its products are mainly divided into the following series:
Chengda Water‑Treatment Tank SeriesFRP‑PE composite tanks, custom‑shaped FRP pressure tanks, mixed‑bed ion exchange columns, aeration cones, FRP storage tanks, nitrogen‑sealed water tanks, filter sand tanks, water distributors, multi‑port valves, PE salt tanks, salt valves, chemical dosing tanks, water softening salt, ion‑exchange resins, filter media, etc.
Chengda Membrane Housing SeriesFRP membrane housings, seawater‑desalination FRP membrane housings, ST/DTRO membrane shells, tubular membrane housings, special housings for membrane cleaning, quick‑disassembly membrane housings, RO reverse‑osmosis membrane elements, vertical / horizontal high‑flow FRP filters, vertical / horizontal high‑flow UPVC filters, etc.
Chengda Filter Cartridge & Filter Vessel SeriesPP melt‑blown cartridges, wound filter cartridges, pleated filter cartridges, UDF cartridges, CTO cartridges, swimming‑pool filter cartridges, high‑flow cartridges compatible with PARKER / PALL / 3M specifications, filter bags, standard filter vessels, big‑blue filter housings, pressure tanks, quick‑connect membrane housings, water softeners, RO water purifiers, etc.
Upholding the corporate tenet of "Achieve others to accomplish ourselves, create brilliance together", the company acts as a one‑stop water‑treatment solution provider. Its products serve civil, commercial and industrial sectors, with business reaching 101 countries and regions worldwide, and its market recognition keeps growing.
We carry out industry‑university‑research cooperation with Wuhan University of Technology. Equipped with advanced production equipment and processes, the company has an in‑house R&D team that independently upgrades and optimizes manufacturing facilities, and has obtained nearly 30 authorized national patents in total.
Enterprise Qualifications & Honors
We are the principal drafter of the national standard for composite‑material tanks for water‑treatment devices (FRP water‑treatment tanks). We have obtained numerous authoritative domestic and international certifications: US ASME, EU CE, US NSF, AEO customs advanced certification, ISO9001 Quality Management System, ISO14001 Environmental Management System, and health approval certificates for water‑contacting products.
We have been awarded many honors: Hebei High‑tech Enterprise, Hebei Specialized, Refined, Differential & Innovative SME, National Science‑based SME, Hebei Grade‑A Industrial R&D Institution, Hebei Enterprise Technology Center, Hengshui Industrial Design Center. We have won Hebei Manufacturing Single‑Champion Award, Zaoqiang Government Quality Award, Hebei Excellent Brand, Hebei Famous Brand, Hengshui Green Factory and other titles. We are a leading enterprise in Hebei characteristic industrial clusters, an outstanding enterprise of Zaoqiang County, and an outstanding backbone manufacturer in the water‑treatment environmental‑protection industry.
