Rice Husk (Adsorbent) is Better Option than High Cost Adsorbent for Removal of Color from Waste Water

Abstract

The main objective of this experimental study was to determine the color removal efficiency from wastewater using
low cost rice husk (adsorbent) than high cost adsorbent like activated charcoal. There are different renewable resources for
adsorbent like Coconut husk, sugarcane Bagasse, Almond nutshells, which could be used as alternatives. Rice husk as waste
material of food industry is a low cost adsorbent. It is available at huge amount from food industries. It can be more utilized
as an adsorbent for removal of color, pollutants from waste of industries. Activated charcoal is high cost adsorbent. It is used
in more industries for removal of color and pollutants but it is highly cost adsorbent so affect on economical process.
Rice husk has adsorbed ability to dyestuff from aqueous solution. Rice Husk has been checked for the removal of color
efficiency from waste water samples containing dyes. The experiments were conducted by packing rice husk adsorbent in
an adsorption column with certain height. Then by applying a continuous down flow of wastewater through the column
with overflows rates of different flow rates. Effect of various parameters such as adsorbent dose, color removal efficiency,
concentration, Height of packing adsorbent, pH, temperature and time will investigate in the present study. The
experiments were carried out for a certain time period. The determination of effluent from column adsorption system in
terms of absorbance, percent transmittance.