Application of Reclaimed Wastewater in the Irrigation of Rosebushes

Author(s)

de Oliveira Marinho, Luccas Erickson ^[1] ; Tonetti, Adriano Luiz ^[1] ; Stefanutti, Ronaldo ^[2] ; Coraucci Filho, Bruno ^[1]

Affiliation

^[1] FEC UNICAMP, Sch Civil Engn Architecture & Urbanism, BR-13083852 Campinas, SP - Brazil

^[2] Univ Fed Ceara, Ctr Technol, Benfica Fortaleza - Brazil

• Document type: Journal article
• Source: WATER AIR AND SOIL POLLUTION; v. 224, n. 9 SEP 2013.
• Web of Science Citations: 17

Abstract

The use of reclaimed wastewater in agriculture can be a solution for regions with water shortages or low rainfall periods; besides fulfilling the crop's water needs, it would also promote the recycle of nutrients. However, care should be taken regarding soil salinization, especially in closed environments such as greenhouses for the cultivation of ornamental plants. The domestic effluents are rich in sodium which can accumulate on soil and cause soil sealing. This study evaluated the use of effluents from anaerobic filters and intermittent sand filters in the production of rosebushes (Rosa hybrida ``Ambiance{''}). The crop yield of the rosebushes irrigated with reclaimed wastewater exceeded the one obtained with traditional cultivation, reaching a value 31.8% higher when employing nitrified effluent originated from intermittent sand filters, with no difference in the product quality. The salinity levels are below the critical limits found in the literature; however, there was a significant increase compared to the irrigation with drinking water. (AU)

• FAPESP's process: 11/21919-7 - Building at full scale and evaluation of low cost wastewater treatment from isolated society
• Grantee: Adriano Luiz Tonetti
• Support type: Regular Research Grants