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*Corresponding Author E-mail: divya1sharma1@gmail.com
Nowadays quality of fresh water is continuously degraded because of water pollution. The imbalance level of nutrients of the fresh water becomes a major issue for many developing counties. The objective of our study was to reduce the hardness of contaminated water by the help of bio-adsorbents. All the water samples were separately monitored by the complexometric method. According to our study the maximum hardness of the sample water was 373.33ppm at 7.11 pH. After the treatment of sample water by the bio-adsorbent Ber (Ziziphus mauritiana), Amla (Phyllanthus emblica), Neem (Azadiractica indica) the hardness of water has been reduced. Water hardness reduces by Ber (83.92%), Amla (46.16%), and Neem (87.14%). This data revealed that Ziziphus mauritiana was the most efficient bio-adsorbent as compared to others which has natural capabilities to reduce the hardness of water and make it potable for living organisms. Bio-adsorbents are non-toxic, bio degradable, economically feasible, easy to use, bio-compatible and energy independent.
Bio-adsorbents, Water contamination, Ber (Ziziphus mauritiana), Avla (Phyllanthus emblica), Neem (Azadirachta indica)