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IJSTR >> Volume 6 - Issue 10, October 2017 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

An Investigation On Effectiveness Of Cactus Materials (Opuntia Spp.) As Adsorbentsfor Hard Water Treatment

[Full Text]



Desderia Mgombezi, VegiMaheswara Rao, Said Hamad Vuai, Somit K. Singh



Adsorption, Cactus materials adsorbents (CMA), EDTA titrimetric method, Hardness.



Water with high concentrations of calcium and magnesium ions is hard water. Water is essential for animals and plants.But water with very high concentrations of calcium and magnesium is harmful to health and also economically costlyfor replacement of damaged pipes due to clogging in industries. Four samples of well water were collected from Swaswa, Kisasa, Nzuguni and Ng’hong’onha in Dodoma municipality, Tanzania. This study was conducted to investigate the effectiveness of naturally available cactusmaterials (Opuntiaspp) as adsorbents for hard water treatment. Determination of hardness before and after treatment was carried out by using EDTA titrimetric method. The results revealed that the concentration of hardness decreased as the dose of adsorbent increased. The initial hardness before treatment was found as 547 mg/L.With 0.5 g of adsorbent the hardness decreased to 268.7 mg/L. The effective dose of adsorbent was 3.5 g which reduced the hardness to 105.46 mg/L. The maximum efficiency of hardness removal for the adsorbents studied in this research was 80.7 %. From this study, it is found that the adsorbents prepared from cactus materials have shown higher efficiency in removing hardness; hence this adsorbent is highly recommended for the hardness removal purposes.



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