不同增氧终端结构对养殖海水增氧效果的影响  

The efficiency to increase dissolved oxygen (DO) by different aerobic terminals

作　　者：范艳霞[1] 王印庚[2] 李红艳[1] 曲江波 郭一令[1] 

机构地区：[1]青岛理工大学环境与市政工程学院,青岛266033 [2]中国水产研究院黄海水产研究所,青岛266071 [3]烟台市开发区天源水产有限公司,烟台264003

出　　处：《渔业现代化》2008年第1期5-9,共5页Fishery Modernization

基　　金：国家科技支撑计划课题(2006BAD09A11);公益性行业(农业)科研专项(nyhyzx07-046)

摘　　要：比较分析了一定气量下不同增氧终端结构以及一定增氧终端结构下不同通气量强度对养殖海水的增氧效果。试验结果表明，在一定充气量下，随着气石目数的增加其增氧效果越好，即100目依次优于80目和60目；在一定增氧终端结构下，通气量强度越大，水体的增氧效果就越明显。在试验通气量30～150L／h范围内，于充气量120mg／L时，100目气石的增氧效果最高；为获得最佳增氧效果，需将气石目数与通气量高低合理搭配。当通气量较低时，应选择目数较小的气石；而通气量较高时，需选择目数较大的气石。探讨最佳增氧效率、氧利用率和动力效率，对节能增效、指导生产实践具有重要的现实意义。This paper analized the efficiency to increase dissolved oxygen by different aerobic terminals or/and by different intensity of air volume. The results demonstrated that the airstone of 100 mesh had a better effiency to increasing DO than 80 mesh and 60 mesh, as the intensity of air volvme was fixed through the aerobic terminal. While the higher intensity of air volvme, and the higher of DO in sea water as the aerobic terminal structure was chosen. The intensity of air volvme were tested between 30 L/h - 150 L/h during the experiment, in which the airstone of 100 mesh approached the highest DO value as the intensity of air volvme was being 120 mg/L. In sum, the mesh of airstone should match up to the intensity of air volvme in order to obtain the better DO in water body.

关 键 词：溶解氧 工厂化养殖 增氧气石 增氧效果 

分 类 号：S969.321[农业科学—水产养殖] X505[农业科学—水产科学]