Recycling of developer waste

Recycling of developer waste

Tetramethyl Ammonium Hydroxdie Waste Recycling

Tetramethylammonium Hydroxide (TMAH) is widely used in the lithography process as a developer in electronic industry. However, TMAH-containing wastewater is harmful to human and will result in significant damage to the environment if not being disposed properly. To deal with the issue, San Fu Chemical developed a technology to recycle TMAH wastewater, which could be made into TMAH and sulfuric acid after further purification and electrodialysis process.
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