China Activated Carbon (CAC) has partnered with clients to introduce an activated carbon leasing model, which effectively extends the lifespan of activated carbon, reduces emissions, and lowers the costs associated with purchasing and disposing of activated carbon.
In semiconductor manufacturing, various chemicals and gasses are used for cleaning, etching, deposition, and processing wafers. These substances often contain harmful materials that need to be thoroughly removed. Activated carbon is one of the most commonly used materials for purifying these harmful substances. However, used activated carbon is often incinerated, leading to resource waste.
Activated Carbon Leasing Model
CAC and its partners have proposed a leasing-based activated carbon recovery and recycling model. On the waste reception end, they collect discarded activated carbon from clients, analyze and confirm its material and condition, and categorize it accordingly. The different states of used activated carbon are then recycled (reheated and reactivated), with standardized procedures for testing and grading the carbon. Finally, the recycled activated carbon is leased back to clients. Activated carbon that does not meet the standards is sold to other clients with different needs or undergoes further processing to produce and market other products.
Benefits
- During a one-year demonstration period, the leasing model successfully doubled the lifespan of 700 tons of activated carbon, reduced carbon emissions by 4,640 tons, and saved clients 8.5 million NTD in activated carbon purchase and disposal costs.