SMART-Plant_IWARR2019_Life Cycle Assessment of an Ion Exchange Technology for Nutrient Removal and Recovery from Municipal Wastewater
Authors/Creators
- 1. Berlin Centre of Competence for Water, Cicerostraße 24, 10709 Berlin, Germany
- 2. Cranfield Water Science Institute, Cranfield University, Beds, Cranfield MK43 0AL, UK
- 3. Severn Trent, 2 St John's Street, Coventry CV1 2LZ, UK
Description
Abstract: Recovery of nutrients as well as the requirement to meet low effluent values are recent
challenges for municipal wastewater treatment plants (WWTP). Therefore, an ion exchange process
(IEX) was developed, which is integrated in the secondary effluent of a WWTP to eliminate and
recover ammonium and phosphate. This study compares a simple WWTP without targeted nutrient
removal in combination with a downstream IEX and a generic reference WWTP with biological
nutrient removal in their environmental impacts, using the Life Cycle Assessment method. Preliminary
results suggest that an IEX can be beneficial due to upstream energy savings in the WWTP. The results
strongly depend on the technical solution for recovery of the IEX regeneration solution.
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