东南大学学报（自然科学版）Issue(3)：526-530,5.DOI:10.3969/j.issn.1001-0505.2015.03.020
浅水湖泊防控黑臭水体复氧技术
Re-oxygenation technology for prevention and control of black water in shallow lakes
摘要
Abstract
The mechanism of re-oxygenation technology to control black water aggregation ( BWA) in a shallow lake was explored.Static experiments show that under a temperature of 28 ℃ and the blue algae density of 1.0 ×108 to 5.0 ×108 cells/L, the concentration of CODMn, dimethyl trisul-fide( DMTS ) in Taihu Lake continually rises, and finally becomes black and putrid after 6 d.It shows that artificial aeration to maintain dissolved oxygen ( DO) content exceeding 1.0 mg/L in wa-ter can prevent and control the occurrence of black and putrid water.Three types of up-flowing cycle re-oxygenation ( UFCR) devices for shallow lake oxygenation are developed, and type Ⅲ is opti-mal.The simulated black water pilot test shows that the diffusion trend of the DO for the typeⅢde-vice is consistent with the corresponding fluent software model.After 80 h ,the concentration of DO is 3.65 mg/L ,and the average rising rate is 0.045 4 mg/(L· h).The influence radius of typeⅢdevice can reach 50 m after 48 h when the UFCR is used to treat black and putrid water.This device can be used to prevent and control the emergence of black and putrid water in shallow lakes.关键词
复氧装置/浅水湖泊/黑水团/富营养化/太湖Key words
re-oxygenation device/shallow lakes/black water group/eutrophication/Taihu Lake分类
资源环境引用本文复制引用
刘海洪,李先宁,宋海亮..浅水湖泊防控黑臭水体复氧技术[J].东南大学学报（自然科学版）,2015,(3):526-530,5.基金项目
国家水专项太湖项目资助项目（2009ZX07101-011）． （）
