Microbiologic quality of the bentonite clay. Removal capacity of Escherichia coli ATCC 10536 in drinking water
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Abstract
Microbiologic quality of bentonite clay coming from the location of Managua, Havana and its capacity for the removal of 103 cel/ml Escherichia coli ATCC 10536 in the water were studied. The concentration of total coliforms was 59 NMP/g of dry weight and termotolerants coliforms were absent. Because of these results the clay doesn't constitute a source of contamination of bacterias of fecal origin. The contact of the bentonite with the drinking water promoved the growth of heterotrophic microorganisms in the water with concentrations of 520 and 1800 UFC/ml. This result is very important in order to use the bentonite in the processes of remediation of drinking water. The water was inoculated with 103 cel/ml of Escherichia coli ATCC 10536 and it stayed 24 hours in contact with the bentonite. After the period of incubation the clay was able to remove 100% of the cells of E. coli.
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Gómez D´AngeloY. T., González GonzálezM. I., & Santa Cruz SalfránL. (2020). Microbiologic quality of the bentonite clay. Removal capacity of Escherichia coli ATCC 10536 in drinking water. Cub@: Medio Ambiente Y Desarrollo, 6(11). Retrieved from https://cmad.ama.cu/index.php/cmad/article/view/96
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Original Article
References
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Lund E. y Nissen B. 2003: Low technology water purification by bentonite clay flocculation as performed in Sudanese villages. Virological examinations. Wat. Res. 20(1);37-43.
Lee L., Saxena D. y Stotzky G. 2003: Activity of free and clay- bound insecticidal proteins from Bacillus thuringiensis subsp. israelensis against the mosquito Culex pipiens. Appl. Environ. Microbiol. 69 (7): 4111-5.
WHO (2005). Emergency treatment of drinking water at point-of-use. Technical Notes for Emergencies No.5.
Sims R.C. y Little L.W. 2005: Tratamiento de residuales industriales líquidos. Familia de productos B-CLEAR de BSAAM. Environ Lett. 4 (1): 27-34.
Chung Y.C., Li Y.H. y Chen C.C. 2005: Pollutant removal from aquaculture wastewater using the biopolymer chitosan at different molecular weights. J. Environ Sci Health a Tox Hazard Subst Environ. 40 (9): 1775-90.
Xie S.G., Tang X.Y., Wu W.Z., Wen D.H. y Wang Z.S. 2005: Biological pretreatment of yellow River water. J. Environ Sci 1 (4): 557-61.
García E. y Suárez M. 2001: Las arcillas: propiedades y usos. (Sitio en Internet). (Citado 6 de febrero 2001); (6P). Disponible en: URL: http://www. .uclm.es/users/higueras/yymm/Arcillas.htm.
Clement L. y Farmer R. 2000: The Herb Allure Resource Toolkit. Can. Jour. Microbiol. 31: 50-53.
ISO 11465 (1993): Soil quality. Determination of dry matter and water content on a mass basis-gravimetric method.
APHA, AWWA, WEF, (1998): Standard Methods for the Examination of Water and Wastewater. 20 ed. Washington.
González M.I., Suárez M., Torres V.T., Cisneros E., Sentmanat L.H. y Leyva Y. (2000): Manual de técnicas microbiológicas para el control sanitario de aguas mineromedicinales y peloides. Ciudad de la habana, INHEM, 122p.
NC 93-02 (1985): Agua potable. Requisitos sanitarios y muestreo.
Bartram J. y Pedley S. 1996. Microbiological analysis. En: Water quality monitoring. A practical guide to the design and implementation of freshwater quality studies and monitoring programmes. Unites Nations Environment Programme and the World Health Organization UNEP/WHO ISBN 041922320.
Sanglay G.C., Eifert J.D. y Summer S.S. 2004: Recovery of Salmonella spp. from raw produce surface using ultrasonication.Foodborne Pathog Dis Winter 1 (4): 295-9.
Chaerun S.K., Tazaki K., Asada R.y Kogure K. 2005: Interaction between clay minerals and hydrocarbon-utilizing indigenous microorganisms in high concentrations of heavy oil: implications for bioremediation. Clay Minerals 40 (1): 105-114.
Kawabata N., Hayashi T. y Matsumoto T. 1993: Removal of bacteria from water by adhesion to cross-linkend poly(vinylpiridinium) halide. Appl. Environ. Microbiol. 56 (1): 203-10.
Sengco M.R., Hagstrom J.A., Granet E. y Anderson D.M. 2005: Removal of Prymnesium parvum (Haptophyceae) and its toxins using clay minerals. Harmful Algae 4(2): 801.
Olsen A. 2003: Low technology water purification by bentonite clay and Moringa oleifera seed flocculation as performed in sudanese villages: effects on Schistosoma mansoni cercariae. Wat. Res. 21(5): 517-522.
Lund E. y Nissen B. 2003: Low technology water purification by bentonite clay flocculation as performed in Sudanese villages. Virological examinations. Wat. Res. 20(1);37-43.
Lee L., Saxena D. y Stotzky G. 2003: Activity of free and clay- bound insecticidal proteins from Bacillus thuringiensis subsp. israelensis against the mosquito Culex pipiens. Appl. Environ. Microbiol. 69 (7): 4111-5.