International Journal of Modern Biological Research
ISSN: 2053-180X
Vol. 4(1), pp. 1-4, January 2016



Degradation of sewage sludge from plant wastewater using vermicompost

Sandoval Rodríguez Fanny1, Meléndez Estrada Jorge2*, Ulloa Ramírez Mario2 and Maribel Quezada Cruz1

1Universidad Tecnológica, Laboratorio de Biotecnología Ambiental. Área Químico Biológicas, Km. 37.5 Carretera Federal México-Pachuca, Colonia Sierra Hermosa. C. P. 55740, Mexico.
2Escuela Superior de Ingeniería y Arquitectura U-Zacatenco, Edificio de Posgrado e Investigación, Unidad Profesional Adolfo López Mateos s/n. Colonia Lindavista Zacatenco, D. F. C. P. 07738, Mexico.

*To whom correspondence should be addressed. E-mail: jmelendeze@ipn.mx.

Received 22 October, 2015; Received in revised form 02 December, 2015; Accepted 08 December, 2015.

Abstract


Keywords:
Sludge, Fulvic acids, Humic acids, Vermicompost.


Organic matter is vital for soil fertility and this may be provided through the humus. Humus liquids are solutions composed of humic and fulvic acids dissolved in water, which provide organic matter to soil through irrigation. In this regard, a study of the degradation of municipal sewage sludge from a wastewater treatment plant using vermicompost, was undertaken. Liquid humus with physicochemical properties that are similar to those presented by the Mexican commercial liquid humus, Hum Ecol® was obtained the waste treatment plant. This similarity was confirmed by conducting a variance analysis of concentrations of important nutrients such as organic matter, carbon, nitrogen, phosphorus and potassium. Statistically, there are no significant differences between the formulated humus and the commercial humus. Also, the test that had the best physicochemical characteristics in terms of nutrients is the formulated humus constituted with a mixture of sludge and equine manure in the ratio of 60:40. It exceeded the content of organic matter and total nitrogen in Hum Ecol® by 31.6 and 2.02%, respectively.

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