ASSESSING THE EFFICACY OF BIO-COAGULANTS IN WATER TREATMENT.
Abstract
The study was designed to investigate the efficacy of Bio-Coagulants in water treatment settling tanks using alum (the commercially available coagulant) as a control for comparison. One of the most important steps in the treatment of water is coagulation, which is utilized to react with organic materials in raw water and destabilize suspended particles. Coagulants, like alum, are frequently used because they lessen the repulsive force between particulate matter, promoting particle contact and the creation of floccules. The study employed the preparation of synthetic turbid water using clay as a source of turbidity, jar tests and settling columns to construct settling curves for evaluating removal efficiencies of the bio-coagulants, using standard procedures. The findings of the study revealed significant linear correlation (R2 = 0.9967) between clay suspension dosage (x) and turbidity (y), which enabled the replication of synthetic turbid water of the desired turbidity using clay.References
Ali E. N., Suleyman A. M., Salleh H. M., Alam M. Z., and Salleh M. R. (2010). “Production of natural coagulant from M.oleifera seed for application in treatment of low turbidity water”, Journal of Water Resource and Protection, volume 2, pp: 259–266.
Alo M. N., Anyim C., and Elom M., (2012). “Coagulation and antimicrobial activities of M.oleifera seed storage at 3°C temperature in turbid water” Advances in Applied Science Research, volume 3(2), pp: 887–894.
Baidhani J. H. (2009). ‘Design of Plain Sedimentation Basins’, Journal of Engineering and Applied Sciences, volume 13 (13), pp. 10730–10734
Berger M. R., Habs M., Jahn S. A. and Schmahl D. (1984) “Toxicological Assessment of Seeds from M.oleifera and Moringa Stenopetala, two highly efficient primary coagulants for domestic water treatment of tropical raw waters” East Africa Medical Journal, volume 61, pp: 712–716.
Chew C. M., Aroua M. K., and Hassan M. A. (2018). ‘Advanced Process Control for Ultrafiltration Membrane Water Treatment System’, Journal of Chemcial Production. volume 65, pp: 719–756.
Eilert, U. (1978). ‘Antibiotic Principles of Seeds of M.oleifera’. Indian Medical Journal volume 38 (235), pp: 1013–1016.
Gebremichael K. A., Gunaratna K. R., Henriksson H., Harry B., and Gunnel D. (2005). “A simple Purification and activity assay of the coagulant protein from Moringa oleifera seed” Water Research Journal, volume 39, pp: 2338–2344.
Hassan H. A., Abdullah S. R. S., Kofli N. T., and Yeoh S. Y. (2016). ‘Interaction of Environmental Factors on Simultaneous Biosorption of Lead and Magnesium Ions by Locally Isolated Bacillus cerus’, Journal of Industrial Chemistry, volume 37, pp 295–305
Kurup P. A., and Rao P. L. (1954). “Antibiotic principle from Moringa pterygosperma Part II”, Indian Journal of Medical Research, volume 2, pp. 85–95.
Mangale Sapana M., Chonde, G., and Raut P. D. (2012). “Use of M.oleifera (Drumstick) seed as natural absorbent and an antimicrobial agent for groundwater Treatment”, Journal of Applied Science and Technology. Volume 1(3), pp. 31–40.
Muhammad I. M., Abdulsalam S., Abdulkarim A. and Bello A. A. (2015). ‘Water Melon Seed, as a Potential Coagulant for Water Treatment’, Global Journal of Researches in Engineering, volume 15(1), pp. 18–20
Nand V., Maata M., Koshy K., Sotheeswaran S. (2012) “Water Purification using Moringa oleifera and other locally available seeds in Fiji for heavy metal removal”, International Journal of Applied Science and Technology, volume 2(5), pp. 125–129.
Smith, J. C. (1994). ‘Water Treatment Plant Operation’, Volume 1, third Edition. California State University, Sacramento, California.
U. S. E. P. A. (1998). ‘Handbook Optimizing Water Treatment Plant Performance Using the Composite Correction Program’, US EPA ISBN 5625-6-91-027
U. S. E. P. A. (2017). ‘Handbook of Water Treatment Operations: ASTM 2540’, US EPA ISBN 5625-6-91-027
Yang.L. and Chen.P. (2008) ‘Biosorption of hexavalent chromium onto intact and chemically modified Sargassum sp.’ Bioresourse Technology, Vol. 99, pp. 297–307.
