EDAR Del Oria Medio En Aduna (Guipúzcoa) Oria Medio WWTP in Aduna (Guipúzcoa)

EDAR Del Oria Medio En Aduna (Guipúzcoa) Oria Medio WWTP in Aduna (Guipúzcoa)

EDAR Aduna | WWTP Aduna | EDAR Aduna EDAR del Oria Medio en Aduna (Guipúzcoa) Oria Medio WWTP in Aduna (Guipúzcoa) www.futurenviro.es | FuturEnviro | Septiembre September 2013 WWTP Aduna EDAR Aduna | EDAR Aduna Con fecha 18 de Marzo de 2008 la Diputación Foral de Guipúz - On March 18th 2008, the Guipúzcoa Provincial Government coa adjudicaba la “Redacción de Proyecto, Ejecución y Puesta awarded the contract for the Design, Construction and en Servicio de la Estación de Aguas Residuales del Oria Medio Commissioning of the Oria Medio Waste Water Treatment en Aduna” a la UTE EDAR Aduna (Construcciones Amenabar Plant in Aduna to the EDAR Aduna consortium (Construcciones S.A., Acciona Agua S.A.U.). Las obras finalizaron con éxito en Amenabar S.A., Acciona Agua S.A.U.). The work was successfully Julio de 2012. completed in July 2012. La planta que fue inaugurada a principios de mayo, tiene un The plant was inaugurated at the beginning of May and treats caudal de 28.080 m3/día, aumentando en tiempo de lluvia has- a flow of 28,080 m3/day, which increases in rainy periods to a ta 128.000 m3/d, dando servicio a una población equivalente de maximum of 128,000 m3/d. It serves a population equivalent 115.317 correspondiente a los municipios de Legorreta, Amezketa, of 115,317, corresponding to the municipalities of Legorreta, Abaltzisketa, Baliarrain, Orendain, Ikaztegieta, Alegi, Altzo, Be- Amezketa, Abaltzisketa, Baliarrain, Orendain, Ikaztegieta, Alegi, launtza, Ibarra, Tolosa, Hernialde, Anoeta, Irura, Asteasu, Zizurkil, Altzo, Belauntza, Ibarra, Tolosa, Hernialde, Anoeta, Irura, Asteasu, Villabona, Aduna y Andoain, incluyendo las aguas de origen in- Zizurkil, Villabona, Aduna and Andoain. Water from industrial dustrial. sources is also treated at the plant. La EDAR se encuentra en el término municipal de Aduna, en The WWTP is located in the municipality of Aduna, in a meadow una vega situada en la orilla izquierda del río Oria, cerca de situated on the left bank of the River Oria, near where Aduna la confluencia del municipio de Aduna con los de Villabona y meets the municipalities of Villabona and Andoain. Andoain. The infrastructure has a total surface area of 20,000 m2 and 2013 La infraestructura tiene, en total, 20.000 m2 y dispone de cuatro has four main buildings: the pretreatment building, the sludge edificios principales: el destinado al pretratamiento, el de lodos, building, the biological treatment aeration building, and the el de aireamiento del biológico y el edificio de control, que incluye control building. The latter building includes both the control September tanto la sala de control como el laboratorio. room and the laboratory. La infraestructura consta de nueve interceptores generales y de The infrastructure is made up of nine general interceptors Septiembre numerosos colectores secundarios. El conjunto de los intercepto- and numerous secondary pipelines. The interceptors have a | res tiene una longitud de 33,8 km y ha tenido un coste de 61 M€. combined total length of 33.8 km and required investment of €61 Uralde es la última de las 13 grandes depuradoras que conforman million. Uralde is the latest of the 13 large-scale treatment plants Enviro la red del territorio. that form part of the territorial network. Futur www.futurenviro.es 91 LINEA DE AGUA WATER LINE Llegada del agua Raw water intake bruta The effluent to be treated is received through a El efluente a tratar se pipeline that leads from the chamber joining the WWTP Aduna recibe en las instala- two pipelines that take the water from the two river ciones a través de un basins. From here, it is sent to the large-particle well. conducto que parte de la arqueta de reunión In this well, filtering is carried out by means of two | EDAR Aduna de los dos colectores bar screens with a passage size of 80 mm and a Blug que recogen el agua de clamshell grab with a capacity of 300 l. The latter is las dos cuencas y con- operated by means of a 5,000 kg overhead crane. duce el agua al pozo de gruesos The waste collected by the grab is deposited in a container with a capacity of 6 m3 for subsequent En el pozo se realiza removal from the plant. This container is arranged un desbaste mediante in a drainage zone to facilitate the draining of liquid dos rejas de 80 mm de from the clamshell grab. paso y una cuchara bi- valva Blug de 300 l de The large-particle well is also fitted with a safety capacidad accionada spillway of 7.5 metres in length. This spillway has the mediante puente grúa capacity to carry the maximum plant inflow to the GH de 5.000 kg, para by-pass pipeline. recogida de residuos. A tank with a capacity of 30 m3 is positioned Los residuos recogidos por la cuchara son depositados para su eva- alongside the large-particle well to store the waste from the cuación en un contenedor de 6 m3 de capacidad. Dicho contenedor septic tanks of communities located in the vicinity of the está depositado en una zona de escurrido al objeto de permitir el WWTP. This tank is equipped with a Flygt submersible mixer escurrido de la cuchara bivalva. with a power output of 1.5 kW in order to prevent unnecessary sedimentation. El pozo de gruesos está dotado, asimismo de un aliviadero de seguridad de 7,5 metros de longitud. Este aliviadero tiene ca - Prior to entering the treatment process, this waste undergoes pacidad para vehicular el caudal máximo de llegada al colector screening. For this purpose, a Huber rotary screen with a de by-pass. mesh size of 6 mm and a maximum throughput of 20 m3/h is installed. Anexo al pozo de gruesos se dispone el depósito de 30 m3 de capa- cidad para almacenamiento de los residuos procedentes de fosas The screened waste is collected and stored in a container prior to sépticas de las comunidades cercanas a la depuradora. El depósito being sent to landfill. está dotado con un agitador sumergible Flygt de 1,5 kW de potencia para evitar sedimentaciones innecesarias. The large-particle well is connected to the raw water pumping well. The latter is fitted with 6 Flygt submersible pumps (900 3m/h). Previamente a la introducción de dichos residuos al proceso de de- Because the pumping well is considered to be a confined space, puración, se procede a su tratamiento mediante tamizado. Para ello, these submersible pumps have an EEX flameproof configuration se utiliza un tamiz rotativo de 6 mm de paso de Huber con una ca- and feature non-clog, free-flow impellers. pacidad máxima de 20 m3/h. Each pump is fitted with a Power Electronics frequency El equipo para tamizado de fangos Huber-Rotamat está compuesto converter to regulate the flow of pumped water. por un tamiz instalado en un contenedor al cual alimenta directa- mente la cisterna que transporta los fangos a tratar e incorpora Pumping is carried out independently by each pumping unit limpieza automática, tornillo transportador y prensa de residuo. through pipes made entirely of AISI 316 grade stainless steel, which discharge the water into a channel that acts as an inlet to Los residuos tamizados son recogidos y almacenados en contene- the filtering process. dor previo envío a vertedero. El pozo de gruesos comunica con el pozo de bombeo de agua bruta, en el que se instalaron 6 bombas sumergibles Flygt (900 m3/h). Es- tas bombas sumergibles son de configuración antideflagrante Eex, 2013 al considerarse dicho pozo de bombeo espacio confinado y dotadas de rodetes anti-atascos, paso integral. September La regulación del caudal bombeado lo realizamos mediante varia- dores de frecuencia Power Electronics, uno por bomba. Septiembre La impulsión se realiza de forma independiente por unidad de | bombeo, mediante conducciones realizadas íntegramente en acero inoxidable AISI 316, descargando éstas en una canal que da entrada Enviro al desbaste. Futur www.futurenviro.es 93 Filtering The filtering line consists of two fully equipped channels of 1 m in width, fitted with Quilton fine particle screens with a mesh size of 6 mm. The filtering channels have a maximum flow WWTP Aduna speed of 0.91 m/sec. CMO motorised sluice gates are installed at the inlet and outlet of each of the two channels so that the filtering lines go into operation automatically in accordance with the flow of raw water received at the plant. EDAR Aduna | EDAR Aduna All the mechanical components of the filtering screen installed are made of AISI-316L grade stainless steel. A pressurised water cleaning system is installed in the discharge area and runoff is sent to the filtering channel. Screen reject is collected by means of an enclosed hollow shaft screw conveyer which is connected to the screen Desbaste discharge hopper. The reject is then deposited in a waste container. Está formado por dos canales equipados de 1 m de ancho con ta- The entire filtering process, including channels and containers, mices de finos Quilton de 6 mm de luz de paso, de las siguientes is located in a common building fitted out for the purpose. This características: facilitates air treatment for odour control if necessary. The building is sufficiently spacious to enable the loading of containers and the La velocidad de paso en el canal de desbaste a caudal máximo, es passage of staff, tools and equipment. Drained and cleaning water de 0,91 m/seg. Se han instalado compuertas motorizadas CMO a is returned to the raw water pumping well. la entrada y a la salida de cada uno de los dos canales, de forma tal que las líneas de desbaste entren en servicio de forma automática, Degritting - degreasing en función del caudal de agua bruta de llegada a planta.

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