DESEMPENHO HIDRÁULICO DE SISTEMA DE IRRIGAÇÃO POR GOTEJAMENTO APLICANDO ÁGUA RESIDUÁRIA DE SUINOCULTURA

Authors

  • Rafael Oliveira Batista UFERSA
  • Ketson Bruno Silva UFERSA
  • Rubens Alves Oliveira Universidade Federal de Viçosa
  • Sebastião Barbosa Filho UFERSA
  • Nildo Silva Dias UFERSA

DOI:

https://doi.org/10.30969/acsa.v8i3.239

Keywords:

entupimento, emissores, dejetos de suínos

Abstract

Objetivou-se analisar o desempenho hidráulico de sistema de irrigação por gotejamento aplicando água residuária de suinocultura tratada. Foi montada uma estrutura hidráulica de avaliação, constituída de três tipos de gotejadores (G1, G2 e G3). Manteve-se a pressão de serviço no início das linhas laterais em 105 kPa, e quantificaram-se a intervalos de 20 h, as vazões dos gotejadores, até a obtenção de um tempo total de 160 h de operação do sistema. O nível de entupimento dos gotejadores foi obtido por meio do coeficiente de variação de vazão (CVQ). Com a aplicação da água residuária da suinocultura houve aumento do CVQ, ao longo do tempo de funcionamento, somente na subunidade com gotejador G2. Os gotejadores de maior vazão e menor comprimento de labirinto são menos suscetíveis ao entupimento. A formação de biofilme foi resultante da interação entre sólidos suspensos, enxofre e bactérias, consistindo no principal fator de entupimento parcial e total dos gotejadores.

References

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Published

2012-12-04

Issue

Section

Original Articles / Artigos de Pesquisa