| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a deodorizing method by means of a green tea flavonoid soln. tank by which deodorization is executed by gas-liq. contact method by using a green tea flavonoid-containing deodorizing soln. and the concn. capable of minimizing even the nasty smell from a green tea flavonoid itself is decided quantitatively without impairing the deodorizing effect of exhaust gas. SOLUTION: In this deodorizing method, the combined nasty smell from a nasty smell generating source is poured and raised in air bubbles 3 from the lower part of the soln. tank 2 having a the deodorizing soln. 1 of the green tea flavonoid aq. soln. and deodorized exhaust gas is obtained from the upper part of the soln. tank by gas-liq. contact. In such a case, the weight concn. of the green tea flavonoid to the deodorizing soln. is kept in 0.01-0.02%.</p> |
