Fig. 11
![Fig. 11](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs13750-020-00211-x/MediaObjects/13750_2020_211_Fig11_HTML.png)
PO4–P removal as a function of Mg:PO4 ratio for sewage sludge (left) and manure (right). Each dot represents an experiment
PO4–P removal as a function of Mg:PO4 ratio for sewage sludge (left) and manure (right). Each dot represents an experiment