| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a waste water treatment method capable of easily and efficiently removing hydrogen sulfide from waste water in which hydrogen sulfide is dissolved by a simple facility and a waste water treatment device. <P>SOLUTION: In the waste water treatment method, a removal process of making waste water flow in to a liquid chamber 12, making sweep gas flow in to a gas chamber 13 and removing hydrogen sulfide from the waste water through a gas permeating membrane 11 is performed once or more by using a gas permeating membrane module 10 which is partitioned into the liquid chamber 12 and the gas chamber 13 by the gas permeating membrane 11. In the first removal process, a temperature of the waste water made to flow in to the liquid chamber 12 is controlled to be 50°C or higher. The waste water treatment device 1 includes a membrane module unit 100 having the gas permeating membrane module 10, a waste water inflow means 20 making the waste water flow in to the liquid chamber 12 and a gas inflow means 30 making the sweep gas flow in to the gas chamber 13. The waste water inflow means 20 includes a temperature control means 22 controlling the temperature of the waste water. <P>COPYRIGHT: (C)2013,JPO&INPIT |
