REDUCTION OF COD AND TDS SUGARCANE BAGGASE POWDER AND CORN STEM POWDER TO TREAT DAIRY INDUSTRY WASTEWATER
J.Thomas Britto
Dept of civil engineering
Thomasbritto3@gmail.com
P.R.engineering college, Thanjavur
ABSTRACT
The effectiveness of corn stem and sugarcane baggase powder, a cheap agro-based product, as an adsorbent was evaluated to remove COD and TDS present in a dairy industry wastewater. Experiments were carried out by adding corn stem powder and sugarcane baggase powder separately to the dairy industry wastewater at different dosages, different rapid mixing contact time and slow mixing contact time. Maximum removal for COD and TDS in a dairy industry effluent was obtained at an optimum dosage of 80 mg/l, an optimum rapid mixing contact time of 10 min. and an optimum slow mixing contact time of 25 min. The results showed that percentage reduction in concentration of COD and TDS in a dairy industry wastewater by sugarcane baggase powder as an adsorbent is about 86.8 % and 80.9 % respectively and percentage reduction in concentration of COD and TDS in a dairy industry wastewater by using corn stem powder as an adsorbent is about 88.6 % and 84.4 % respectively. Further, the results indicated that the use of corn stem powder as an adsorbent to remove COD and TDS present in a dairy industry wastewater seems to be an economical and worthwhile alternative over conventional method.
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