Quality of the Diluted Landfill Leachate in Water Supply Used in the Performance of Drippers
Francisco de Oliveira Mesquita *
Department of Soil and Water Management, National Institute of the Semiarid (INSA), UFCA, Campina Grande/PB, Brazil.
Rafael Oliveira Batista
Federal University of Semi-Arid / UFPB, Mossoro/RN, Brazil.
Daniela Costa Leite Coelho
Federal University of Semi-Arid / UFPB, Mossoro/RN, Brazil.
Ketson Bruno da Silva
Federal University of Semi-Arid / UFPB, Mossoro/RN, Brazil.
Antonio Gustavo de Luna Souto
Federal University of Paraiba (UFPB), Areia/PB, Brazil.
Emanoel Lima Martins
Department of Soil and Water Management, National Institute of the Semiarid (INSA), UFCA, Campina Grande/PB, Brazil.
André Japiassú
Federal University of the Campina Grande (UFCG), Pombal/PB, Brazil.
Adriana Araújo Diniz
Superiors Studies Center for Balsas, State University of Maranhão – UEMA/CESBA/Balsas, Brazil.
*Author to whom correspondence should be addressed.
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.
Keywords: Clogging, percolate, emitters, obstruction