Research Article Open Access

Physical, Chemical, Microbiological and Parasitological Parameters in a Composting System of Vegetable Solid Residues

Francisco Rafael Martins Soto1, Maira Oliveira Silva1, Ramieri Moraes1, Jéssica Vilela da Cruz1, Jéssica Priscila Cavalcanti1, Fernanda Alves da Silva1, Laine Rodrigues Lima1, Elizabeth Soares de Jesus1, Sérgio Santos de Azevedo2, Iolanda Cristina Silveira Duarte3, Mônica Aparecida de Almeida3 and Sandro Eugênio Pereira Gazzinelli1
  • 1 Federal Institute of Education, Brazil
  • 2 Federal University of Campina Grande- PB, Brazil
  • 3 Federal University of São Carlos, Brazil

Abstract

This work aimed to evaluate the physical, chemical, microbiological and parasitological parameters in a composting system of Vegetable Solid Residues (VSR). The work was carried out during four months and was constituted of a compost bed of 12 m3 of volume and the proportion used for its filing was of 6:1 (VSR: Sawdust). For the analysis of the microbiological and parasitological parameters16 sample collections were carried out for each parameter, at weekly intervals. The presence of Total Coliforms (TC), Thermotolerant Coliforms (TTC) and Intestinal Parasite Eggs (IPE). Regarding the physical and chemical parameters were analyzed: Temperature, pH and the Carbon and Nitrogen Relation (CNR). For the physical and chemical parameters the results revealed that there was a reduction in the CNR, with the final value of 14. The temperature presented little increase in the first five weeks, with the average value of 38.98°C and its stabilization in the last week with average value of 29.3°. The pH oscillated between neutrality to slightly acid. There was no reduction in the TC, but for the TTC there was a decrease in its count of 98.54%. In relation to the IPE, the composting system was capable of inactivating and eliminating them.

American Journal of Environmental Sciences
Volume 11 No. 6, 2015, 420-426

DOI: https://doi.org/10.3844/ajessp.2015.420.426

Submitted On: 14 June 2015 Published On: 21 November 2015

How to Cite: Soto, F. R. M., Silva, M. O., Moraes, R., Cruz, J. V. D., Cavalcanti, J. P., Silva, F. A. D., Lima, L. R., Jesus, E. S. D., Azevedo, S. S. D., Duarte, I. C. S., Almeida, M. A. D. & Gazzinelli, S. E. P. (2015). Physical, Chemical, Microbiological and Parasitological Parameters in a Composting System of Vegetable Solid Residues. American Journal of Environmental Sciences, 11(6), 420-426. https://doi.org/10.3844/ajessp.2015.420.426

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Keywords

  • pH
  • Temperature
  • Carbon Nitrogen Relation
  • Intestinal Parasite Eggs
  • Coliforms