One of the primary challenges associated with inorganic wastewater is its toxicity. Heavy metals such as lead, cadmium, mercury, and arsenic are often found in significant concentrations in industrial effluents. These metals can accumulate in the food chain, leading to severe health issues in humans and wildlife, including neurological disorders, developmental problems, and cancer. Additionally, high salinity levels can adversely affect aquatic life, disrupting ecosystems and biodiversity.
Despite their many advantages, the utilization of coagulants must be conducted with care. Overdosing can lead to excessive sludge production, which requires additional management and disposal. Also, the selection of the appropriate coagulant and dosage is essential, as this varies depending on the specific water source and contamination levels.