深水湖泊增氧理论与技术研究进展  

Advances in Oxygenation Theory and Technology in Deep Lakes

作　　者：兰晨[1,2] 陈敬安[1] 曾艳[1] 郭建阳[1] 张润宇[1] 王敬富[1] 杨海全[1,2] 计永雪[1,2] 

机构地区：[1]中国科学院地球化学研究所环境地球化学国家重点实验室,贵州贵阳550081 [2]中国科学院大学,北京100049

出　　处：《地球科学进展》2015年第10期1172-1181,共10页Advances in Earth Science

基　　金：国家自然科学基金项目“山区深水型湖泊沉积物内源磷释放的磷酸盐氧同位素示踪研究”(编号:41173125)资助~~

摘　　要：深水湖泊由于自身物理结构特性,易形成垂直热分层。温跃层阻碍了上层水体中氧气向下转移,使得深水层长期处于缺氧状态,加速了沉积物内源污染物的释放,并导致湖泊水质恶化。利用增氧技术提高深水湖泊水体氧含量是抑制内源污染物释放、改善湖泊水质的一项有效措施。系统论述了国内外深水湖泊增氧方法与原理,深入剖析了人工去分层增氧技术、气体提升增氧技术、Speece锥形增氧技术和气泡羽流扩散增氧技术等4种主要增氧技术的结构与优缺点,介绍了典型深水湖泊增氧技术应用实例研究进展,对比分析了主要深、浅水增氧系统的差异,提出了目前增氧技术存在的主要问题,并对未来研究方向进行了展望。Deep lakes always maintain vertical thermal stratification due to their physical structure. The ther- mocline prevents the transfer of oxygen from epilimnion to hypolimnion, leading to the formation of anoxic condi- tions in deeper water, the enhanced release of endogenous pollutants and the deterioration of water quality. Oxygen- ation is an effective measure to improve the water quality of deep lakes and mitigate the release of endogenous pollu- tants via the increase of the oxygen level in water. This paper provided an overview of the method and theory of oxy- genation in deep lakes. Advantages and limitations of different methods of oxygenation, including artificial destrati- fication, airlift aerators, Speece cone and bubble plume diffusers, were discussed. In addition, challenges and prospects of oxygenation were assessed based on the analyzing of typical examples of oxygenation in deep lakes and the difference in oxygenation system used in deep lakes and shallow lakes.

关 键 词：深水湖泊 沉积物 增氧技术 曝气 水质 

分 类 号：P343.3[天文地球—水文科学]