【摘要】 实验研究了中空纤维膜向水中进行无泡曝气的工艺过程,结果证明,这是一种高效的新型曝气工艺技术,其供氧的总传质系数可以达到605h-1,是传统气泡曝气方式的6倍以上;水流速和气体压力是影响无泡曝气供氧能力的2个主要变量,通过控制气压可以定量调节曝气量。更多还原

【Abstract】 Bubbleless aeration of water was experimentally studied with a hollow fiber membrane. A high mass transfer coefficient was achieved, which is 6 times higher than that of conventional bubble aeration. Water flow rate and oxygen pressure are two major parameters that influence the oxygen transfer ability, and quantitative aeration can be achieved by controlling oxygen pressure. The bubbleless aeration using hollow fiber membrane is a promising technology.更多还原