Wastewater treatment method containing polyvinyl alcohol (PVA) by electron beam irradiation

摘要

Disclosed is a wastewater treatment method for decomposing and removing PVA by irradiating electron beams to wastewater containing polyvinyl alcohol (PVA). The disclosed wastewater treatment method includes an electron beam irradiation step of decomposing the PVA by irradiating an electron beam generated from an electron beam accelerator while bubbling by bubbling a bubbling gas into a wastewater containing polyvinyl alcohol (PVA); Iron salt as a flocculant into the waste water containing the PVA, characterized in that it comprises a precipitation step of adsorbing, agglomerated the precipitated PVA. Therefore, compared to the conventional method, the process is simpler, the settling speed is faster, the treatment time is shorter, and the scale of the wastewater treatment facility can be reduced, thereby reducing the facility cost and operating cost, and also adding a small amount of flocculant to biological difficulties. It can remove more than 99% and almost 100% of degradable PVA, and more than 80% of other organic substances.