EFFECTS OF ORIFICE SIZE AND SURFACE CONDITIONS ON OXYGEN-TRANSFER IN A BENCH SCALE DIFFUSED AERATION SYSTEM

被引：7

作者：

ASHLEY, KI ^{[1
]}

MAVINIC, DS ^{[1
]}

HALL, KJ ^{[1
]}

机构：

[1] UNIV BRITISH COLUMBIA,DEPT CIVIL ENGN,ENVIRONM ENGN GRP,VANCOUVER V6T 1W5,BC,CANADA

来源：

ENVIRONMENTAL TECHNOLOGY | 1990年 / 11卷 / 07期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1080/09593339009384903

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Non‐steady state gas transfer methodology was used to examine the effect of orifice size and surface conditions on the rate of oxygen transfer in a 239 L bench scale tank. Each orifice size tested (40 μ, 397 μ and 1588 μ) increased the overall oxygen transfer coefficient (KLa20, hr−1) ; standard oxygen transfer rate (OTs, g O2/hr) ; transfer efficiency (Eo, %) and energy efficiency (Ep/ g O2/kW‐hr) as orifice diameter decreased. The three surface conditions examined exerted a minor effect on oxygen transfer. © 1990 Publications Division Selper Ltd.

引用

页码：609 / 618

页数：10

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