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Biological denitrification DWTP project in La Eliana (Valencia, Spain)

2024

BIOBOX® has successfully led the design and installation of a water treatment plant with a biological denitrification system in La Eliana, which is set to begin operation soon. This Drinking Water Treatment Plant (DWTP) incorporates the innovative BIOBOX Nitrates technology and is designed to treat a flow of 286 GPM (65 m³/h) in an area of less than 322 ft² (30 square meters)

 ETAP Heterotrophic Biological Denitrification in La Eliana: Project Description

The local water production and distribution company, Altos Riegos S.L., in La Eliana (Valencia), was facing challenges in removing high concentrations of nitrates from its water sources. They were looking for a sustainable alternative with lower operational and investment costs, that would not generate waste and have lower energy consumption. BIOBOX® took on the challenge of adapting its technical proposal to an existing facility in a limited space.

This adaptation involved creating a specific design tailored to the space requirements. Likewise, significant civil works were necessary for the installation of the biological filter and the planned polishing filters.

The result was a complete success, as BIOBOX® managed to provide the local company with a fully automated 4.0 plant capable of treating a flow rate of 286 GPM (65 m³/h) in less than 322 ft² (30 square meters)

With the aim of optimizing processes, reducing costs, enhancing customer convenience, and facilitating installation, the plant was prefabricated at BIOBOX®’s innovation and development center. This decision allowed the customer to continue their regular operations during the three weeks it took to complete the construction.

Once completed, the plant was transported for its final installation. Upon arrival, the necessary electrical connections and water piping were made. Automation tasks were also carried out, along with integration into the existing systems. This project is expected to be start-up very soon.

In conclusion, thanks to the combination of two of BIOBOX®’s areas of expertise—water engineering and new technologies—a custom-made plant has been created, tailored to the customer’s facilities. It complies with current regulations and ensures optimal service quality.

Technologies used:

Plant characteristics:

  • Influent: Well water
  • Technology: BIOBOX Nitrate
  • Flow rate: 286 GPM (65 m³/h )
  • Influent N-NO₃: 14-16mg/L / (NO₃: 60-70 mg/L)
  • Effluent N-NO₃: <8 mg/L (NO₃: <35 mg/L)

Plant design steps:

Biological Denitrification
Ultraviolet Treatment
Fine-tuning to remove suspended solids
Final disinfection by Sodium Hypochlorite

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