Struvite crystallization wastewater treatment system equipped with magnesium oxide (MgO) solubility prediction module and struvite crystallization method using the same

摘要

According to the present invention, a chemical tank 10 for introducing magnesium oxide (MgO) into the crystallization tank 1 in which wastewater is accommodated; a control unit 200 for controlling the chemical tank 10; and an input unit 100 for receiving the ion information (a) and the reached pH information (b), wherein the control unit 200 includes, the ion information (a) input through the input unit 100 and the arrival A wastewater treatment system comprising a; solubility prediction module 210 for deriving solubility information (d) of magnesium oxide (MgO) in the wastewater based on the pH information (b) is provided. According to the present invention, there is an effect that the struvite crystallization process can be performed using only inexpensive magnesium oxide (MgO).