The design, construction, and operation of the Household Waste Treatment and Disposal Centre ("Centro de Tratamiento de Residuos" o "CTR"), which serves 521,000 people across the province, has been awarded by the Valladolid City Council to a joint venture managed by FCC Medio Ambiente. The total contract portfolio amounts to 138.43 million euros spread over 11 years.

The rehabilitation of the environmental complex will cost roughly 45 million euros and will take 15 months to complete. Its goal is to convert its facilities to the new legislation and waste management system, which is based on five main waste collection fractions: organic or FORS, inorganic or remaining fraction, light containers, paper-cardboard and glass. The new plant is scheduled to come on stream by the end of 2022 and the contract provides for a 9-year operating period.
The facility, whose design capacity is 212,500 tonnes per year, will have sorting lines for the organic fraction, packaging and residual fraction, a biomethanisation plant, a composting area in tunnels for the organic fraction and another in a closed reactor for the residual fraction, a building for the classification of bulky waste, a treatment plant for the leachate generated in the facility and a cogeneration area, as well as a final deposit for non-recyclable material or rejects, as well as a host of other services.

Key innovations of the reform project awarded are based on the automation with the latest technology of the treatment and classification lines, the implementation of a new closed and automatic aerobic treatment system for the residual fraction with a capacity of 55,000 tonnes/year and the construction of two new differentiated refining lines for compost and biostabilised material, the latter with automatic glass recovery. A new purification process for leachates generated in the Waste Processing Plant will also be implemented, including an atmospheric evaporation system, for which the heat generated in biogas engines will be used.

The cogeneration facility, which uses biogas collected from the waste tank and biomethanisation, will provide all of the energy used in the facilities. Innovative systems and constructive improvements will also be implemented to treat the air generated in the complex, also installing an R&D centre, which will manage projects aimed at rejection reduction research or improvements in the treatment of leachates, among others.

FCC Medio Ambiente has been linked to the environmental complex for over 35 years, as it was awarded the contract to build and operate the original facility in 1999, and has been managing the controlled landfill site since 1985.