You are here

Home » Content

NATURAL COAGULANTS-AN ALTERNATIVE TO CONVENTIONAL METHODS OF WATER PURIFICATION

Journal Name:

  • The International Journal of Pharmaceutical Research and Bio-Science

Publication Year:

  • 2013

Key Words:

Author Name
Abstract (2. Language): 
Water is used for several purposes by humans but the level of purity of the water being consumed is very crucial since it has a direct effect on health. Safe drinking water should generally be free from heavy metals, turbidity, organic compounds and pathog treatments of water often include sedimentation, filtration and disinfection. Among the coagulating agents used in water treatment, ferric sulphate or alum (aluminium sulphate) is some of the most widely used salts. Aluminium is strongly neurotoxic and may be involved in the development of Alzheimer’s disease. known fact that most of the chemical disinfectants used for antibacterial activity generate various unwanted chemicals known as disinfection b products (DBPs) in water. There DBPs are associated with harmful effects on humans such as hemolytic anemia, cancer risk, nervous system effect and liver effects. Addressing these problems calls out for a tremendous amount of research to be conducted to identify robust new methods of purifying water at lower cost and with less energy, while at the same time minimizing the use of chemicals and impact on the environment. Here in this review article we highlight some of the Natural herbals like potatorum (nirmali), Moringa oleifera (drumstick tree) used by humans throughout history in treating drinking water.
Bookmark/Search this post with
FULL TEXT (PDF): 
PDF icon ijprbs_272.pdf
  • 1
306-314
  • English

REFERENCES

References: 

1. Crapper DR, Krishnan SS, Dalton AJ:
Brain aluminium distribution in Alzheimer’s
disease and experimental neurofibrillary
degeneration. Sci. 1973; 180(4085): 511-
513.
2. Miller RG, Kopfer FC, Ketty KC, Stober
JA, Ulmer NS: The occurrence of aluminium
in drinking waters. J. Am. Wat. Wks Ass.
1984; 76(1): 84-91.
3. Letterman RD, Driscoll CT: Survey of
residual aluminium in filtered water. J. Am.
Wat. Wks Assoc. 1988; 82: 154-158.
4. Mallevialle J, Brichet A, Fiessinger F:
How safe are organic polymers in water
treatment. J. Am. Wat. Wks Assoc. 1984;
76: 87-93.
5. Clark M. Robert, Sivaganesan Mano:
Predicting Chlorine Residuals and Formation
of TTHMs in drinking Water, Journal of
Environmental Engineering, 1998; 124(12):
1203-1210.
6. Schoenen D: Role of disinfection in
suppressing the spread of pathogens with
drinking water –possibilities and limitations,
Water Research,Volume 2002; 36 (15):
3874-3888.
7. Jahn, S.A.A: Using Moringa seeds as
coagulants in developing countries. Journal
American Water Works Association, 1988;
80(6): 43-50.
Review Article ISSN: 2277-8713
Balachandra S, IJPRBS, 2013; Volume 2(1): 306-314 IJPRBS
Available Online At www.ijprbs.com
8. Dillard CJ, Bruce German J.
Phytochemicals: nutraceuticals and human
health. Journal of the Science of Food and
Agriculture. 2000; 80(12): 1744–1756.
9. Siddhuraju P, Becker K. Antioxidant
properties of various solvent extracts of
total phenolic constituents from three
different agroclimatic origins of drumstick
tree (Moringa oleifera Lam.) leaves. Journal
of Agricultural and Food Chemistry. 2003;
51(8): 2144–2155.
10. Gottsch E: Purification of turbid surface
water by plants in Ethiopia. Walia 1992; 14:
23–28.
11. Sen, A. K. & Bulusu KR: Effectiveness of
Nirmali seed as coagulant and coagulant
aid. Environ. Health 1962; 4(3), 233–244.
12. Dhekane, N. Y., Ambawane, G. B., Patil,
B. N. & Pagar SD: Nirmali seed as a
coagulant. J. Instn Engrs India (PHE Div.)
1970; 50(10): 108–112.
13. Tripathi PN, Chaudhuri, M. & Bokil, SD:
Nirmali seed – a naturally occurring
coagulant. Indian J. Environ. Health 1976;
18(4): 272–281.
14. Sutherland, J. P., Folkard, G. K. & Grant,
WD: Natural coagulants for appropriate
water treatment: a novel approach.
Waterlines 1990; 8(4): 30–32.
15. Folkard, G., Sutherland, J. & Al-Khalili, R.
1995. Natural coagulants – a sustainable
approach. In: Sustainability of Water and
Sanitation Systems, Proceedings of the 21st
WEDC Conference, Kampala, Uganda,
1995: 263–265.
16. Al-Khalili, R. S., Sutherland, J. P., &
Folkard, G. K. 1997 Filtration with a natural
coagulant. In Water and Sanitation for All:
Partnerships and Innovations, Proceedings
of the 23rd WEDC Conference, Durban,
South Africa, pp. 1997: 143–145.
17. Folkard, G. & Sutherland, J. 2002
Development of a naturally derived
coagulant for water and wastewater
treatment. Wat. Suppl. 2002; 2(5–6): 89–94.
18. Abu-Ghararah ZH: Polymer application
methods in direct filtration. MSc thesis. King
Abdulaziz University, Jeddah. 1983.

Thank you for copying data from http://www.arastirmax.com