Water4Crops - - Treatment Systems

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Treating Wastewater: Double the Benefit

A central aim for the partners is to develop and implement sustainable technologies, as well as best practices, that will support wastewater exploitation in agriculture by adopting an innovative approach that could potentially produce twice the benefits. Rather than simply restoring wastewater in order to meet quality standards and enable its reuse, the researchers propose to further utilise the resource at their disposal. The high value nutrients reclaimed from wastewater have the potential to dramatically boost crop yields when put back into the land.

Developing Wastewater Treatment Systems

W4Cs is mainly focused on two types of small, decentralized wastewater treatment system appropriate for the small settlements found in rural areas in India and Europe.

Technological systems

Innovations that are being developed include:

  • A sequencing batch bio-filter granular reactor.
  • An environmentally-sound tool that can reduce up to 80 per cent of disposable sludge produced at a conventional plant.
  • Nano-biocatalysts that can be used to assist with the degradation of micro pollutants are also of particular interest.
  • The researchers are keen to devise methods that combine biological treatment with surface filtration through cheap and natural membrane, which they believe could offer a greater deal of control in terms of desired water quality.
Natural systems

Efforts are centred on constructed wetlands (CWs) and eco-friendly systems with low maintenance costs. At present, very little is known about CWs and so the group is keen to investigate how best such a natural system can be taken advantage of. Therefore, research is being carried out to learn more about aspects including pathogens, heavy metals and nitrogen removal potential, clogging and preferential-flow phenomena, hydraulic behaviour, and design.

Additional information