Impact Factor (2025): 6.9
DOI Prefix: 10.47001/IRJIET
Chemical
coagulants when used in water treatment led to reduction in pH level of water,
large amount of sludge production and environmental pollution. Also, chemical
coagulants have high cost. To reduce the excessive use of chemical coagulants
and the cost of surface water treatment, Alum and Banana peel powder (BPP)
combination was used in different proportions as an alternative of chemical
coagulants in this research. The comparison of removal efficiencies of
turbidity, iron, copper, nitrate, TDS and TSS between the Alum and BPP
combination at different proportions was done to find out the best proportion
for their combination. It was observed that highest iron and copper removal
efficiencies of 99.38% and 99.39% respectively were obtained when Alum and BPP
used at 75% and 25% proportion, respectively. Highest turbidity, nitrate, TDS
and TSS removal efficiencies of 99.77%, 97.61%, 68.42% and 99.46% respectively
were obtained when Alum and BPP used at 100% and 0% proportion. It was found
that the cost of surface water treatment using Alum individually was 0.12 ₹/L
and for combination of Alum with BPP at proportion 75% and 25%, respectively
was 0.09 ₹/L. The cost of surface water treatment reduced by 25% when Alum and
BPP combination was used as a coagulantat proportion of 75%:25%.
Country : India
IRJIET, Volume 9, Issue 6, June 2025 pp. 241-248