Amherst study finds textile wastewater treatment toxic
PUBLISHED Jun 1, 2026, 1:59 PM ET
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Researchers at the University of Massachusetts Amherst report that electrochemical treatment of textile industry wastewater can generate hazardous levels of toxic byproducts. In a study published today, the team found that treating common Azo dyes with electrochemical electrodes in the presence of chloride, often added as table salt to improve conductivity, produced chloroform and bromoform at hundreds of parts per billion. These concentrations reached about three times the allowable limit for human exposure in drinking water or showers, and, when bromine was present in dyes, more than ten times the U.S. EPA regulatory limit for trihalomethanes. The authors recommend alternative salts, such as sodium sulfate, despite lower efficiency.
By Sarah Whitman | JQJO News
Timeline of Events
- Today Study published by UMass Amherst researchers
- Today Electrochemical dye treatment process evaluated
- Today Chloroform, bromoform detected at high concentrations
- Today Levels exceed drinking water exposure limits
- Today Trihalomethanes surpass EPA regulatory thresholds
- Today Textile wastewater impacts downstream aquatic ecosystems
- Today Researchers propose sodium sulfate as alternative
- Today Industry efficiency concerns noted for alternative
News Intelligence
- Your clothes might be contributing to water pollution. The textile industry often uses Azo dyes, which can create toxic byproducts when treated. These toxins can end up in our drinking water and showers. Be an informed consumer - check if your favorite brands are committed to sustainable practices.
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