“…Cyanide levels have previously been found in WWTP effluents at levels higher than those found in the influent and are believed to be due to chlorination. Deeb et al (2004) presented an overview of the WERF project, "Cyanide Formation and Fate in Complex Effluents and Its Relation to Water Quality Criteria", focusing on analytical laboratory issues and discharge compliance strategies for cyanide-impacted wastewater.…”