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Phos-Value: Sustainable solutions for nutrient recycling

Description

Like many Small Island Developing States, Cape Verde faces challenges with coastal eutrophication due to nutrient releases from poorly treated wastewater.  This project used digital technologies to help Cape Verde’s wastewater treatment sector optimize the biological removal and recovery of nutrients, promote the safe use of treated wastewater as biofertilizer, and help reduce wastewater treatment operating costs. 

  • Increase nutrient removal efficiency in wastewater treatment
    It sought to provide sustainable solutions for municipal wastewater treatment plants that do not meet the effluent discharge limits in a coastal area affected by eutrophication and/or hypoxia. It sought to validate and implement affordable Phos-Value’s sustainable solutions, applicable within the boundaries of the existing infrastructure available in the wastewater treatments plants, that comply with the discharge of nutrients into aquatic environments to less than 1 mg P.L-1 and 10 mg N.L-1
  • Recovery of nutrients for use as organic fertilizer
    AquaInSilico’s digital tools allow wastewater treatment plants to treat nutrient-rich effluents and recycle treated water and biofertilizers for agricultural applications. The wastewater in the area is currently being reused for landscape irrigation (e.g. hotel industry and agriculture) without guarantees of quality. To tackle this problem, the government published a new Law regulation (Decreto Regulamentar nº4/2020) that establishes criteria and parameters for the control of the quality of reused water for agricultural irrigation, including treated wastewater. AdP Group has an ongoing project with ANAS under the Strategic Co-operation Programme established between Portugal and Cape Verde (PEC 2017-2021). In this project, the potential for the reuse of treated wastewater for agricultural irrigation was assessed as well as the investment required for the long-term implementation of new solutions.
  • Reduce wastewater plant operating costs by 25 percent
    AquaInSilico’s digital tools are being used to ensure phosphorus recycling from biological waste sludge with yields higher than 60%. These preliminary validation studies have enabled wastewater treatment plants to adapt their treatment systems more effectively, saving OPEX costs by up to 25%.

IMPLEMENTATION STATUS: Completed. They've shared updates on their work and what they've achieved in 2023. Read here.

 

Read: Turning grey and brown water into "blue gold"

Listen: AquaInsilico uses artificial intelligence to improve wastewater treatment

Watch their capstone event: https://oceaninnovationchallenge.org/library/videos/oic-capstone-event-aquainsilicos-phos-value-sustainable-solutions-nutrient-recycling

Details
Phos-Value: Sustainable solutions for nutrient recycling
  • Start Date
  • End Date
  • Innovator AquaInSilico Lda.
  • OIC Financing
    USD 250,000
  • Beneficiary Cape Verde, Portugal
  • Category
    Private Sector
  • Focal Point
    Jorge Santos
  • Phos-Value will use cutting-edge digital technologies to optimize the biological removal and recovery of nutrients in wasterwater
    Phos-Value will use cutting-edge digital technologies to optimize the biological removal and recovery of nutrients in wasterwater
  • Nutrient-rich effluent ending in the coasts and seas can lead to eutrophication and 'dead zones'
    Nutrient-rich effluent ending in the coasts and seas can lead to eutrophication and 'dead zones'
  • Phos-Value: Sustainable solutions for nutrient recycling
    Phos-Value: Sustainable solutions for nutrient recycling