Performance of drippers operating with landfill percolate
DOI:
https://doi.org/10.6008/CBPC2179-6858.2020.006.0042Keywords:
Percolate, Emitters, MembranesAbstract
With the establishment of the National Solid Waste Policy in Brazil, it is expected that the number of landfills will increase, over the years, and with this the need to develop treatment techniques and, or use of percolates. The objective of this work was to analyze the effect of the application of diluted landfill leachate on the nominal flow of drippers from drip irrigation units after 160 hours of operation. The experiment was conducted under a completely randomized design in the split plot scheme, with the types of drippers in the plots (G1 - 1.6 L h-1; G2 - 2.0 L h-1, G3 - 4.0 L h-1 and G4 - 8.0 L h-1) and in the subplots the operating times (0, 20, 40, 60, 80, 100, 120, 140 and 160 h), with four repetitions. The system flow (Q) was obtained after every 20 h of system operation, until completing 160 h of operation in all irrigation units. There was a statistical difference in the levels of obstruction of dripper G1 (non-self-compensating) in relation to the others, indicating less susceptibility to clogging of drippers G2, G3 and G4 (self-compensating). The Q values made the G1 dripper the most sensitive to clogging.
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