PHYSICOCHEMICAL PARAMETERS OF A MICROORGANISMS FERMENTED AND ITS EFFECT ON A CONTAMINATED WATER BIOREMEDIATION

Authors

  • Noemia Cristina Santos Cardozo Gama Universidade Estadual de Alagoas https://orcid.org/0000-0002-4973-5126
  • Riquelle Carla dos Santos Universidade Estadual de Alagoas
  • Esmeralda Aparecida Porto Lopes Universidade Estadual de Alagoas

Keywords:

CONTAMINATED WATERS, TOTAL COLIFORMS, REMEDIATION

Abstract

Efficient microorganisms (EM) consist of a combination of completely natural microorganisms (lactobacilli, yeast, phototropic bacteria and actinomycetes), which when coexisting have a synergistic effect, which is greater than the sum of their individual limbs, and may include solving environmental problems such as treating wastewater. Therefore, the objective of this work was to analyze the effect of EM on bioremediation of water contaminated by animal waste as well as the physicochemical parameters of the fermented EM and contaminated water accordingly. The EM it was prepared and activated by the homemade method of capture and preparation of EM/ soil and EM/ plant. Water contaminated by animal and fermented waste was sampled according to the Standard Methods for the Examination of Water and Waste Water protocol. Total and thermotolerant coliforms were investigated by the most probable number technique (MPN), known as the multiple tube method and the physicochemical parameters (pH, total solids, sodium, nitrite, nitrate, chlorides, total hardness, color apparent, conductivity and turbidity). To evaluate the bioremediation potential of EM the treatments were: T0 (contaminated water), T1 (concentrated ME), T2 (50% concentrated ME + 50% contaminated water), with 3 replications. It was possible to determine that the quality of contaminated water meets the Ministry of Health's prerequisites regarding the physicochemical parameters, however as for the microbiological parameters of the coliforms it proved to be unfit for human consumption, since the presumptive and confirmatory tests revealed that 100% of the contaminated water (T0) sample tubes at dilutions 10-1, 10-2 and 10-3 were positive, indicating the presence of total coliforms, being 55.6% of the thermotolerant group. The T1 and T2 treatments showed 100% absence of the coliform group, confirming that EM was effective in the remediation of the coliform group when diluted by 50%.

Published

2019-10-19

How to Cite

Gama, N. C. S. C., Santos, R. C. dos, & Lopes, E. A. P. (2019). PHYSICOCHEMICAL PARAMETERS OF A MICROORGANISMS FERMENTED AND ITS EFFECT ON A CONTAMINATED WATER BIOREMEDIATION. Caderno Verde De Agroecologia E Desenvolvimento Sustentável, 9(5), b–72. Retrieved from https://gvaa.com.br/revista/index.php/CVADS/article/view/7271