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GER values of recovered phosphorus

Chain analysis of stuvite production from municipal wastewater and recovery of phosphorus from sludge incineration ash

Phosphorus recovery from wastewater is a topical issue and a process being applied increasingly in the Netherlands. As part of NL Agency’s energy efficiency programme CE Delft has calculated the energy benefits of two alternative recovery options compared with conventional production routes. The Gross Energy Requirement (GER) was calculated for the following routes: struvite recovery from rejection water versus conventional fertilizer production and phosphorus recovery from sludge incineration ash at Thermphos versus phosphorus production from phosphate ore at Thermphos. Compared with the conventional routes, the two recovery routes yield energy gains. The project was carried out in cooperation with Mirabella Mulder Wastewater Management, with support from Thermphos.


Harry Croezen
Marijn Bijleveld

Delft, September 2012

the report

This publication is only available in Dutch

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