Recent industrial growth in India has caused large quantities of heavy metals including mercury, lead, zinc, copper, nickel, cadmium, and chromium to be released into the environment.As heavy metals are extremely toxic and non-biodegradable, it is extremely difficult to separate them from the atmosphere.Many research studies attempted to address the ability of the non-conventional absorbents in removing different types of wastewater pollutants. As a cost-effective alternative to conventional effluent treatment methods, Bio-sorption technology utilizes natural and agricultural waste materials as absorbents, which are relatively cheaper, sustainable, and abundant. The study concentrates on the capacity of rice husk and orange peel in extracting heavy metals from waste water. Adsorption tests has been carried out for different combinations of rice-husk and orange peel varying dosage, contact time, pH and mixing speed and optimal levels resulting in maximum removal efficiency levels are ascertained. To determine the efficiency of the adsorbents, Redlich-Peterson isotherms were constructed using different combinations of orange peel and rice-husk under varying conditions.