Details

Autor(en) / Beteiligte

• Petousi, I.
• Daskalakis, G.
• Fountoulakis, M.S.
• Lydakis, D.
• Fletcher, L.
• Stentiford, E.I.
• Manios, T.

Titel

Effects of treated wastewater irrigation on the establishment of young grapevines

Ist Teil von

• The Science of the total environment, 2019-03, Vol.658, p.485-492

Ort / Verlag

Netherlands: Elsevier B.V

Erscheinungsjahr

2019

Link zum Volltext

Quelle

Elsevier ScienceDirect Journals Complete

Beschreibungen/Notizen

• Irrigation with treated wastewater could produce excessive accumulations within the plant and soil, negatively affecting the yield and production quality. In addition, the presence of biological and chemical contaminants could harm the agricultural environment, as well as the health of farmers and consumers. During this work, the suitability of secondary and tertiary treated wastewater for use in young grapevines was evaluated by studying the effect of the wastewater irrigation on the soil-plant system, crop yield, fruit quality and the presence of inorganic chemical contamination (salts, elements and heavy metals), organic chemical contamination (polycyclic aromatic hydrocarbons) and microbial contamination (E. coli, total coliforms). The results show that tertiary treated wastewater had positive impact on plant growth and yield while secondary treated wastewater had negative impact on fruit safety in comparison with tap water. Sodium levels in soils irrigated with treated wastewater increased at the end of the irrigation period while decreased during the wet season. The total polycyclic aromatic hydrocarbon concentrations in the soils ranged from 363 μg/kg to 374 μg/kg at the end of the experiment for all irrigation treatments applied. The use of tertiary treated wastewater was recommended for the irrigation of young grapevines as an alternative water source secured protection of environment, plant health and fruit quality. [Display omitted] •Tertiary treated wastewater could be safely applied for irrigation.•Treated wastewater improves growth parameters of the vines.•Heavy metals and PAHs have no adverse effect on soil-plant-fruit system.•Application of secondary treated wastewater increases microbial risk.