| 摘要 |
<p>There are provided an apparatus and method for treating wastewater in a high flux membrane capable of performing high-flux filtrations by performing an agent backwashing operation under the automatic control of early fouling of the submerged membranes. The agent backwashing operation under the automatic control of the early fouling is performed by continuing to perform the filtration without an agent backwashing operation when a rate in pressure change calculated from the transmembrane pressure difference of the submerged membranes is maintained constantly, and is to perform an agent backwashing operation in order to remove contaminants from the initial membranes when the calculated rate in pressure change is increased suddenly. The apparatus and method according to the present invention may be useful to improve filtration performances of membranes 2 times by effectively controlling early fouling of the membrane, and to reduce the number of used membranes and used accessory equipments, which are required for membrane filtration, by 1/2.</p> |
