GRAÑÓN WWTP

• Contracting company: La Rioja Water and Waste Management Consortium
• Location: Grañón (La Rioja)
• Sector: Municipal
• Technology: The plant which is the subject of the tender process will have treatment capacity equivalent to the waste water generated by 1,600 inhabitants, with a treatment flow of 240 m3/day. The water will reach the WWTP through a concrete tube approximately 1,200 metres long, which will also be constructed by MP. Once it arrives, it will be purified using the following treatments: pre-treatment, primary sedimentation, biological treatment using bacterial beds (low energy cost), secondary sedimentation and sludge thickening.

WATER SUPPLY AND SANITATION FOR THE BAJO ANDARAX ASSOCIATION OF MUNICIPALITIES. PHASE I:

• Contracting company: Empresa de Gestión Medioambiental SA
• Location: Almeria
• Technology: Water supply and sanitation works for the Bajo Andarax Association of Municipalities. Phase I. The project includes carrying out the water supply and sanitation works for the publicly-owned zone of the Andarax river, from Santa Fé de Mondújar to the El Bobar WWTP, and also the Viator branch sanitation pipes. The two pipes will total 44 km in length. The deviations of the supply tubing will be carried, in one case, to the edge of the said public domain area, and in the other to connect to the existing installation.

• Contracting company: Coorporación Agroalimentaria Peñasanta S.A (CAPSA)
• Location: Zarzalejos,  Badajoz
• Technology: CAPSA has bought the former La Serrana Campo Leite factory and extended the existing treatment plant, which was also installed by MP. The flow is expected to increase from 750 m3/day to1,600 m3/day. To cope with the increased flow, a larger homogenisation tank has been installed, and the degreasing has been replaced by physical-chemical treatment with a capacity of 160 m3/h. Additionally,  a system for adding coagulant, neutraliser and flocculant has been installed, which reduces the input load, so that the existing volume of biological treatment (SBR) can be maintained by simply replacing the aeration system by one with a higher capacity. The sludge processing line has also been modified, replacing the existing centrifuge with one of higher capacity which will be able to handle the sludge generated by both the physical-chemical treatment and the biological treatment.