초록 ▼

A method and an apparatus for mixing discrete, microscopic portions of a gas (oxygen) in a liquid (water), wherein the liquid is brought into contact with a liquid repellent side of a microporous membrane, and the gas is contacted with the other side. The membrane, which may be a bundle of hollow fi

A method and an apparatus for mixing discrete, microscopic portions of a gas (oxygen) in a liquid (water), wherein the liquid is brought into contact with a liquid repellent side of a microporous membrane, and the gas is contacted with the other side. The membrane, which may be a bundle of hollow fibers, has effective pore pathway diameters generally in the range 0.01 to 5 .mu.m, and the liquid pressure is regulated not to exceed that of the gas or to cause liquid to pass through the membrane. Gas/liquid mixed in this manner is conveyed and delivered in a low-liquid-turbulence incurring manner to avoid the discrete, microscopic gas portions from combining and provide them with a long retention time in the liquid.

대표청구항 ▼

[I claim:] [1.]a) a casing having a gas inlet, a liquid inlet, and a gas/liquid mixture outlet,b) a microporous membrane in the casing, the membrane having,i) effective, gas liquid contacting, pore pathway diameters generally in the range 0.01 to 5 .mu.m, andii) a side that is repellent to the liqui

[I claim:] [1.]a) a casing having a gas inlet, a liquid inlet, and a gas/liquid mixture outlet,b) a microporous membrane in the casing, the membrane having,i) effective, gas liquid contacting, pore pathway diameters generally in the range 0.01 to 5 .mu.m, andii) a side that is repellent to the liquid to be mixed,the membrane dividing the casing interior into a liquid path, on the liquid repellent side, between the liquid inlet and gas/liquid mixture outlet, and a gas chamber from the gas inlet,c) fluid pressure regulating means connected to the casing to regulate the gas/liquid pressure relationship therein so that,i) the gas pressure does not exceed the liquid pressure, andii) pressurized liquid does not pass through the membrane micropores, andd) a low-liquid-turbulence-incurring, gas/liquid mixture conveying and delivering device connected to the gas/liquid mixture outlet.