APPLICATION OF WASTEWATER IN GRASS WITH SUBSURFACE DRIP IRRIGATION SYSTEMS

What is it about?

The use of treated wastewater for agricultural irrigation of landscaped areas such as plazas, parks, golf courses and gardens regions where water scarcity is technical and environmental viable, being the subsurface drip irrigation systems more indicated. The experiment was carried out from April to October 2009 in the Station Sewage Treatment Brasilia – North - ETEB-North, Federal District - Brazil, to evaluate the effect of the use of sanitary effluent secondary treatment in the performance of the emitters models Typhoon, Tiram and DripNet PC installed at 6 cm, 12 cm, 18 cm and 24 cm for grass irrigation and evaluate the performance of the filter disc 125 microns and the use of sodium hypochlorite applied every 6 h of use of irrigation system. The uniformity coefficient evaluated after 180 h of use were unacceptable or poor for the three models of emitters and four installation depths. The installation depth of the lateral lines interfered in the uniformity coefficient and clogging. The use of disc filter and sodium hypochlorite was not sufficient to control the emitters clogging.

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Why is it important?

This paper shows the viability of making water reuse through agricultural irrigation of landscaped areas such as plazas, parks, golf courses and gardens regions where water scarcity is technical and environmentally viable.

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