Quality of the Diluted Landfill Leachate in Water Supply Used in the Performance of Drippers

Abstract

The landfill percolate (LP) has appreciable amounts of nutrients that can be used in the production of biomass for energy purposes and serves as parameters to study the performance of irrigation systems. The objective of this work is to analyze the drip performance indicators applying diluted landfill percolate, well as the main obstruction factors and the percolate quality. The experiment was assembled up in split-plot scheme with kind drippers (G1 - non-pressure compensated; G2 - pressure compensated; G3 - pressure compensated; and G4 - pressure compensated) in the plot and operating times (0, 20, 40, 60, 80, 100, 120, 140 and 160 h) in subplots, with four replications. The flow rates tested in the main and secondary plots in this work were: main plots - types of drippers (G1 - 1,6 L h-1; G2 - 2,0 L h-1, G3 - 4,0 L h-1 e G4 - 8,0 L h-1) and in the subplots the operating times (0, 20, 40, 60, 80, 100, 120, 140 e 160 h), with four replications. The suspended solid and dissolved solids attributes present a severe risk of dripper obstruction for the diluted landfill percolate.