| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a washing method of an evaporation concentration apparatus, a washing apparatus of an evaporation concentration apparatus, a wastewater treatment method and a wastewater treatment apparatus which can control deterioration in heat-transfer efficiency of an indirect heating part. <P>SOLUTION: The washing method of an evaporation concentration apparatus having an indirect heating part for heating wastewater containing at least aqueous coating is a method for evaporating water containing low boiling components in the wastewater and concentrating high boiling components. At least a part of water containing the evaporated low boiling components is recovered and the indirect heating part is washed by water containing the low boiling components. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
