All studies aforementioned suggest that recycling is feasible for disposal of iron-containing resource. Similarly, in order to dispose the iron-containing sludge from iron oxide red wastewater treatment,recycling should be taken into consideration. Moreover, as many studies of iron-containing resource just stay at the lab scale,this recycling should be carried out in large scale to show whether it is practicable.

All studies aforementioned suggest that recycling is feasible for disposal of iron-containing resource. Similarly, in order to dispose the iron-containing sludge from iron oxide red wastewater treatment,recycling should be taken into consideration. Moreover, as many studies of iron-containing resource just stay at the lab scale,this recycling should be carried out in large scale to show whether it is practicable.