13일째 2배로 희석하여 운전하였으며 이후 27일째 희석하지 않고 발생하는 반류수를 원수 그대로 반응조에 유입시켰다.
On the 13th day, the reject water was diluted twice, and on the 27th day, the reject water which was generated without dilution was introduced into the reactor as raw water.