{"id":48600,"date":"2025-03-31T13:21:25","date_gmt":"2025-03-31T11:21:25","guid":{"rendered":"https:\/\/interreg-sudoe.eu\/noticia-proyecto\/como-se-produce-el-agua-regenerada-en-los-pilotos-de-i-rewater\/"},"modified":"2026-02-16T16:40:59","modified_gmt":"2026-02-16T15:40:59","slug":"como-se-produce-el-agua-regenerada-en-los-pilotos-de-i-rewater","status":"publish","type":"noticia-proyecto","link":"https:\/\/interreg-sudoe.eu\/en\/noticia-proyecto\/como-se-produce-el-agua-regenerada-en-los-pilotos-de-i-rewater\/","title":{"rendered":"How is reclaimed water produced in I-ReWater pilot plants?"},"content":{"rendered":"

In order for urban water to be suitable for agricultural irrigation, it undergoes an advanced treatment process that removes contaminants and pathogens. But how is its sanitary quality ensured, and what technologies are used to produce it?<\/span><\/p>\n

Reclaimed water has a wide range of uses, covering various sectors. Its main uses are divided into six key areas: agriculture, urban and industrial. It is also used for recreational purposes, as well as in other activities such as aquaculture, livestock farming and forestry. In addition, treated water also plays an important role in the environmental field.<\/span><\/p>\n

Obtaining reclaimed urban water suitable for reuse requires additional, more advanced treatments to reduce the residual contaminant load, suspended solids and turbidity, as well as pathogenic microorganisms (viruses and bacteria) to ensure the sanitary quality of the water.<\/span><\/p>\n

Tertiary treatments are usually carried out in the same WWTP facilities, after secondary treatment, in the section known as the Water Regeneration Plant (WRP).<\/span><\/p>\n

The choice of tertiary treatments depends on two factors:
\n– Existing primary and secondary treatment lines in the WWTP.
\n– Required quality of the reclaimed water, in order to comply with the minimum quality standards for use under current legislation.<\/p>\n

All these tertiary processes for reuse are generally based on different combinations of technologies, which vary in complexity and investment cost:<\/p>\n

Physical-chemical:
\n<\/strong>Coagulation, flocculation and decantation
\nDeep filtration
\nSurface filtration
\nDissolved air flotation
\nAdvanced oxidation<\/p>\n

Filtration membranes:
\n<\/strong>Microfiltration
\nUltrafiltration
\nNanofiltration
\nReverse osmosis
\nElectrodialysis<\/p>\n

Disinfection:
\n<\/strong>Ultraviolet radiation
\nChlorine: mainly sodium hypochlorite
\nOzone<\/p>\n

What tertiary treatments are used in the 15 I-ReWater pilot plants?
\n<\/b>1.- L\u00fapulo Abegondo (Galicia): UVV disinfection
\n2.- L\u00fapulo Cubillos del Sil (Castile and Le\u00f3n): Microfiltration with self-cleaning mesh filter + UV disinfection
\n3.- Mirandela Olive Grove (North): Mechanical filtration + UV disinfection
\n4.- Alf\u00e2ndega da Fe Almond Grove (North): Mechanical filtration + UV disinfection
\n5.- Herdade do Espor\u00e3o Vineyard (Alentejo): Trial in the process of adjustment as the initial approach needs to be reviewed.
\n6.- Monte da Ravasqueira vineyard (Alentejo): Trial in the process of adjustment as the initial approach needs to be reviewed.
\n7.- Carri\u00f3n de los C\u00e9spedes olive grove (Andalusia): SBN (artificial wetlands working under different configurations) + Storage lagoon + Ultrasound + Sand and mesh filtration
\n8.- Carri\u00f3n de los C\u00e9spedes tomato (Andalusia): Storage lagoon + Ultrasound + Sand and mesh filtration
\n9.- Maials almond tree (Catalonia): Simulation of the chemical composition of reclaimed water
\n10.- Hort\u00edcolas Viladecans, watermelon (Catalonia): Membrane bioreactor (MBR) + Chlorination
\n11.- La Grajera vineyard (La Rioja): Water comes from secondary treatment (MBR membrane filtration) at the WWTP
\n12.-Hops Lot-et-Garonne (Nouvelle Aquitaine): Possible simulation of the chemical composition of reclaimed water
\n13.- Hops Taiz\u00e9-Aizie (Nouvelle Aquitaine): Study only with water deficit due to organic farming
\n14.- Roquefort-des-Corbi\u00e8res vineyard (Occitanie): Mechanical filtration of 40 \u00b5m + 400 m\u00b3 tarpaulin + low-pressure UV + chlorination + 50 m\u00b3 tarpaulin
\n15.- Gruissan vineyard (Occitanie): 3,000 m\u00b3 reserve + sand filtration + low-pressure UV + chlorination<\/p>\n

\"\u00bfQu\u00e9<\/a>\"\u00bfQu\u00e9<\/a>\"\u00bfQu\u00e9<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

In order for urban water to be suitable for agricultural irrigation, it undergoes an advanced treatment process that removes contaminants and pathogens. 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