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Presence of heavy metals, phenols, and cyanides is highly dangerous, and in the simultaneous presence, the effect is compounded. Chemical precipitation of such pollutants from industrial waste has gained momentum in recent years, as it promise to surpass the major drawbacks laid by the other physicochemical and biological methods and can be practically carried out in all conditions. The present work illustrates the possible removal mechanisms and interactions between organic and inorganic compounds during this process. Jar test experiments, using ferric chloride, were conducted to compare the removal efficiencies of phenol, chromium, and cyanide, either in separate or simultaneous presence. Moderate removal of Cr⁺⁶ was observed during conventional coagulation; though removal efficiencies were insignificant in the case of cyanide and phenol. The presence of cyanide ions in the solution showed an …