Cyanide can enter wastewater through various pathways, predominantly from mining activities where it is used to extract gold and other precious metals. Additionally, electroplating industries use cyanide solutions for surface treatment. Other lesser-known sources include the production of textiles, plastics, and agricultural chemicals, where cyanide compounds are utilized. Given its high toxicity, the presence of cyanide in wastewater must be controlled and treated before discharge into the environment.
In consumer products, fillers are often used in plastics to provide desired textures or aesthetics. For instance, talc is commonly added to polyethylene products to improve opacity and surface finish. Additionally, in electronics, filled polymers can serve as effective insulators, with additives that enhance thermal conductivity and prevent overheating.
Furthermore, the environmental impact of PAM application should be assessed, particularly in large-scale operations. Biodegradability and the potential for accumulation in aquatic environments are ongoing concerns in the field of water treatment.