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DTC Nature Based Used Water Management

DTC research group has developed and monitored nature based solutions for used water management in Ireland.

DTC Nature Based Used Water Management System in Ireland

DTC research group has developed and monitored nature based solutions for used water management in Ireland. 

Used Water Management in Ireland

The typography of settlement in Ireland consists of numerous isolated dwellings, not connected to collective sewage treatment systems. In addition, there are 34 towns currently discharging untreated wastewater into the environment. Natural solutions for wastewater treatment include horizontal and vertical flow reed beds, and evaporative systems such as willow beds. They can be used to recycle water for use in other applications. 

Project Information

Principles of Natural WWT Systems:

  • Low Construction & Operating Costs
  • Minimise power and maintenance requirements
  • Suitable for remote locations 
  • Fits well into countryside – wildlife habitat
  • Can provide high quality treatment 
  • Can be constructed with local materials
  • Removal of BOD, (COD),TSS 
  • Oxidation of NH4-N if designed
  • Sometimes NO3-N if designed 
  • Sometimes PO4-P but must have suitable media
  • Can achieve ZERO discharge

 

Reed beds have been used for the last 50 years to treat wastewater, in Europe. The design has evolved from horizontal reed beds through vertical beds to hybrid beds, and latterly compact vertical flow beds. The principle mode of treatment is a combination of sedimentation, filtration, aerobic/anaerobic degradation, ammonification, nitrification/dentrification, plant uptake and matrix adsorption.

 

The combination of a reed bed and a willow bed facility installed and monitored in Lynches Lane, Co Dublin has resulted in a zero discharge over the study period. 

Studies are ongoing within the DTC Research Group  into developing applications for reed willow bed combinations for new build and retro fit systems. 

 

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