Wafer facility utility project · East Asia
RO feed dechlorinationAcid-washed coconut GAC reviewed for rinse-up, fines and residual chlorine control.
TOC Removal · UPW System · Wafer Cleaning
Semiconductor Ultrapure Water
Low-impurity activated carbon may be used in pretreatment and polishing stages serving semiconductor ultrapure-water systems. Media selection emphasizes leachables, TOC contribution, rinse-up behavior and compatibility with downstream RO, ion exchange and UV oxidation.
Discuss Your ProjectIndustry overview
Adsorption designed around the process.
Activated Carbon for Semiconductor Ultrapure Water (UPW)
Ultrapure water (UPW) is an essential raw material for semiconductor wafer manufacturing. Even trace organic pollutants, residual chlorine and chloramines can cause defects on wafer surfaces and damage precision filtration & reverse osmosis membranes. High-grade activated carbon acts as a key pretreatment media in UPW production lines, eliminating organic contaminants and oxidizing substances before water enters RO and ion-exchange polishing units.
Our low-ash, ultra-pure activated carbon is specially produced for semiconductor UPW projects, with extremely low heavy metal leaching and minimal particle shedding, suitable for strict cleanroom water preparation systems.
Core Application Scenarios
- UPW Pre-Treatment for Wafer Fabrication Remove free chlorine, chloramines and soluble organic matter from raw feed water. Protect reverse osmosis membranes against oxidative degradation and reduce TOC load for subsequent polishing stages.
- TOC Reduction for Ultrapure Water Loops Adsorb dissolved organic carbon to lower TOC values. Low TOC level is critical to avoid micro-contamination on silicon wafers during etching, cleaning and photolithography processes.
- Removal of Pesticides & Trace Micropollutants Capture trace organic micropollutants from municipal source water, preventing these contaminants from entering the ultrapure water circulation loop.
- Recycle Water Treatment in Fab Plants Polish wastewater recycled from wafer cleaning processes, remove residual organics and odor to increase water reuse rate and reduce fab water consumption.
- Protect Ion Exchange & EDI Modules Cut organic fouling risk for EDI and mixed bed ion exchange resins, extend service life and reduce replacement frequency of high-cost polishing media.
Why Choose Our Activated Carbon for Semiconductor UPW
- Ultra-low heavy metal and ash content, negligible ion leaching
- Low particle shedding, less fine debris to block downstream filters
- Optimized pore structure for efficient TOC and chlorine adsorption
- Acid washed purification treatment, meets semiconductor water standards
- Strict batch quality control with full COA documentation
- Stable performance for continuous 24/7 operation of chip fabrication plants
How It Works
Raw water flows through the activated carbon filter bed. Residual chlorine is catalytically decomposed, while organic molecules are trapped by physical adsorption inside carbon pores. The treated water with lowered TOC and no free chlorine then enters RO and EDI polishing to reach ultrapure water specification required for semiconductor manufacturing.
Industries We Serve
Semiconductor fabs, wafer foundries, microchip manufacturing, display panel factories, electronics ultrapure water stations.
Contact our water treatment engineers to select the proper activated carbon grade according to your inlet water quality and UPW specification requirements.
Common carbon options: Acid-washed Coconut Shell · High-purity Coal-based Activated Carbon
Product parameters
Activated carbon selection table.
Recommended starting ranges for technical discussion. Final values depend on the stream, test method and buyer specification.
| Carbon option | Iodine value | Typical size | Suitable conditions | Selection effect |
|---|---|---|---|---|
| Acid-washed coconut GAC | 1000–1200 mg/g | 12×40 mesh | Pretreatment organics / chlorine | Low ash and high hardness |
| High-purity GAC | 900–1100 mg/g | 12×40 mesh | RO protection and polishing | Controlled leachables |
| Fine granular carbon | 1000–1200 mg/g | 20×40 mesh | Compact polishing beds | Faster kinetics; higher pressure-drop review |
| Custom washed grade | Project-specific | Buyer-selected mesh | Critical high-purity duty | Rinse and extractables data by agreement |
Treatment process
From inlet to verified outlet.
The exact equipment train is confirmed after reviewing site data and target limits.
- 01Feed-water characterization
- 02Pre-filtration
- 03Carbon dechlorination / organic removal
- 04RO + EDI / ion exchange
- 05UV oxidation and TOC verification
Project cases
International industrial references.
Buyer identities are withheld. The examples show representative project briefs and engineering approaches; performance is site-specific.
Electronic chemicals plant · Southeast Asia
Trace-organic pretreatmentHigh-purity carbon pilot tested before RO and mixed-bed polishing.
Semiconductor expansion · Eastern Europe
New UPW pretreatment trainMedia quantity and vessel loading calculated from flow, EBCT and backwash constraints.
Frequently asked questions
Technical answers for buyers.
Need a faster review? Send the available process data with your inquiry.
Yes. Share your process data and target limits so we can prepare a relevant evaluation sample. Freight is normally paid by the buyer.
Iodine value, particle size, strength, moisture and packing can be discussed against the equipment and required outlet quality.
Please provide the stream composition, target contaminants, inlet and outlet limits, flow, temperature, humidity or pH, contact time and current equipment.
Service life depends on actual contaminant loading, competing compounds and operating conditions. Pilot testing and breakthrough monitoring provide the most reliable estimate.