Which industry is known to discharge hexavalent chrome?

The leather tanning industry is known for discharging hexavalent chromium, a toxic form of chromium that can result from the tanning process. This chemical is often used in the production of leather to enhance durability and resistance to decay. During the tanning process, if proper care is not taken, hexavalent chromium can leach into wastewater streams, leading to environmental pollution and potential health risks.

In contrast, while metal fabrication can involve chromium, it typically does not specifically discharge hexavalent chromium in the same significant amounts as leather tanning. Food processing and pulp and paper industries are not primarily associated with hexavalent chromium; their focus is on different materials and chemicals, thus they generally do not present the same risks in terms of hexavalent chromium discharge. Understanding the specific processes and substances used in different industries helps clarify the unique challenges they may pose concerning wastewater management.