Anaerobically treated wastewater in agricultural irrigation as an alternative for posttreatment in water-demanding zones |
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Authors: | Jeison D Chamy R Salgado E |
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Institution: | (1) Department of Chemical Engineering, Universidad de La Frontera, Casilla 54D, Temuco, Chile;(2) School of Biochemical Engineering, Universidad Católica de Valparaíso, General Cruz 34, Valparaíso, Chile;(3) Agronomy Faculty, Universidad Católica de Valparaíso, General Cruz 34, Valparaíso, Chile |
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Abstract: | Agroindustries usually produce high amounts of wastewaters and are frequently located close to agricultural activities. Agricultural
use of treated wastewaters therefore represents a unique opportunity to solve the problem of water supply for irrigation and
disposal of treated water at the same time. This article is the result of collaborative work with the biggest Chilean pisco-(a
distillated drink prepared from Muscatel wine) producing company at present. Experiments were conducted to establish anaerobic
treatability of wastewaters and also irrigation properties of treated water. With the purpose of confirming laboratory results,
a full-scale anaerobic plant was built, and treated water is being used to irrigate 3000 eucalypti. The results showed, at
both laboratory and full scale, that anaerobic treatment is suitable for the treatment of pisco wastewater, and that nutrient
content of treated water can be beneficial for plant growth, reducing the need for fertilizers. |
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Keywords: | Pisco anaerobic digestion vinasses irrigation fertilization |
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