Drenagem agrícola com utilização de diferentes tipos de água e sistemas drenantes.

Abstract

The urban drainage systems are essentially systems of flood prevention, especially in lower areas of the communities subject to flooding or marginal natural water courses, while the rural environment, the drainage systems are also beyond the role of these functions control of groundwater, reclamation of salinized soils and to provide favorable conditions for various actions why is aimed, with this research, develop and evaluate the hydraulic characteristics of constructed drainage systems using the water supply and domestic wastewater without treatment , wraps with the scrapings of rubber sandals and processing of sisal waste under laboratory conditions. The experiment, conducted at the Laboratory of Irrigation and Drainage, Leiden, the Federal University of Campina Grande - UFCG, occurred in three stages in each of three different tubes were tested and a single wrap material from the two types of water, each one with three replications. For the assembly of the experiment were weighed 500 kg of soil following the same reasoning in 9 tanks. The first stage is composed of the systems evaluated Drenoflex pipes, PVC pipe and smooth Kananet using as the material envelope of sisal fiber and water supply and domestic waste, while in the next step the tubes were enveloped with a rubber scraper to sandals using the same waters. Treatments were arranged in a factorial arrangement with three types of tube, Drenoflex, Kananet PVC pipe and smooth, suitable for drainage, two wraps materials, sisal fiber and scrapings of rubber sandal with the use of two types of water to be drained (water supply and wastewater). The drainage systems that had greater capacity for lowering the water table was the PVC pipe with the smooth envelope of sisal and Drenoflex tube with rubber scrapings envelope.