Study of the Inhibitor Scaling Effect of the Agricultural Water by a Phosphate Fertilizer

DOI: 10.4236/jwarp.2015.715100   PDF   HTML   XML   2,782 Downloads   3,283 Views   Citations


The localised irrigation or drop by drop system is a technique which makes it possible to save water, because it ensures a balanced and efficient distribution of water and an effective fertilization. However, this ferti-irrigation system is facing a number of problems hindering the agricultural development. The lack of uniformity of the localised irrigation was observed and found out that it is due to chemical clogging of drippers. Considering the complexity of the composition of the natural water used in micro-irrigation, we started our study by examining the effectiveness of the inhibitor on pure calco-carbonic water with 40°F, and then moved to explore the natural water of the agricultural region. The Legrand-Poirier-Leroy method allowed us to determine the position of the irrigation water compared to calco-carbonic balance. LCGE (abbreviation of “Laboratory of Chemistry and Environmental Engineering”) technique, based on the accelerated formation of calcium carbonate deposit under the effect of a degasification of studied water, enabled us to evaluate the scaling power of this water of irrigation either with or without inhibitor. The experimental results showed the following: in the case of pure calco-carbonic water with 40?F and of natural water, the addition respectively of 2 mg/L and 2.25 mg/L of phosphate fertilizer completely inhibits the precipitation of calcium carbonate under the conditions of the experiment.

Share and Cite:

Hadfi, A. , Ben-Aazza, S. , Belaatar, M. , Hafid, N. and Driouiche, A. (2015) Study of the Inhibitor Scaling Effect of the Agricultural Water by a Phosphate Fertilizer. Journal of Water Resource and Protection, 7, 1234-1241. doi: 10.4236/jwarp.2015.715100.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Hadfi, A., Eddaoudi, H., El Hadek, M., Ghorbel, A. and Driouiche, A. (2011) The Characterization of Scaling Power of Irrigation Water of the Agricultural Region in Large Agadir. Physical and Chemical News, 57, 44-50.
[2] Roques, H. (1964) Static and Kinetic Study of the Systems Gas Carbonic-Water-Carbonate of Calcium. Thesis, Toulouse.
[3] Dedieu, L., Hort, C., Martin Dominguez, A., Rola, M. and Roques, H. (1994) Contribution to the Study of Scale Formation. I: Generality and Methods of Study. Tribune de l’eau, 47, 3-19.
[4] Hort, C., Martin Dominguez, A., Rabut, C. and Roques, H. (1995) Contribution to the Study of Scaling Phenomena. 2nd Part: The Kinetics of Crystal Growth. Tribune de l’eau, 48, 31-46.
[5] Elfil, H. and Roques, H. (2001) Role of Hydrate Phases of Calcium Carbonate on the Scaling Phenomenon. Desalination, 137, 177-186.
[6] Reddy, M.M. (1977) Crystallization of Calcium Carbonate in the Presence of Trace Concentrations of Phosphorus-Containing Anions: I. Inhibition by Phosphate and Glycerophosphate Ions at pH 8.8 and 25°C. Journal of Crystal Growth, 41, 287-295.
[7] Berner, A. (1980) Crystallisation and Dissolution Kinetics of CaCO3 in Seawater. Acts of Congress “Crystallisation-Deformation-Dissolution” of Carbonates, Bordeaux, 17-18 November 1980, 33.
[8] Simkiss, K. (1964) Phosphates as Crystal Poisons of Calcification. Biological Reviews, 39, 487-504.
[9] Stumm, W. and Leckie, J.O. (1970) Phosphate Exchange with the Sediments; Its Role in the Productivity of Surface Waters. Proceedings of 5th International Water Pollution Research Conference, San Francisco, 1970, 3-26.

comments powered by Disqus

Copyright © 2020 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.