当前位置: X-MOL 学术Sci. Total Environ. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Developing staggered woven mesh aerator with three variable-micropore layers in recycling water pipeline to enhance CO2 conversion for improving Arthrospira growth
Science of the Total Environment ( IF 9.8 ) Pub Date : 2020-12-04 , DOI: 10.1016/j.scitotenv.2020.143941
Jun Cheng , Shuzheng Liu , Wangbiao Guo , Yanmei Song , Santosh Kumar , Ameer Ali Kubar , Youning Su , Yuguo Li

A staggered woven mesh (SWM) aerator equipped with three variable-micropore layers was developed to enhance the CO2 conversion into HCO3 in a recycling water pipeline for promoting CO2 utilization efficiency and Arthrospira growth in large-scale raceway ponds. The input CO2 gas was broken into smaller bubbles (0.78– 2.43 mm) through the first-stage shear with axial rectangles, second-stage shear with radial rectangles (equivalent pore diameter = 150 μm), and third-stage shear with uniform micropores. A high-speed camera (MotionXtra HG-100K CMOS) and an Image J image processing software were employed to capture the bubble pictures. Compared to the traditional steel pipe (TSP) aerator, the bubble generation diameter and time in the SWM aerator reduced by 72.3% and 48.6%, respectively. The optimized structure (ε = 14, pore = 23 μm) of the SWM aerator promoted the carbonization efficiency and HCO3 conversion efficiency into biomass by 78.6% and 64.6% than the TSP aerator. Further, the chlorophyll fluorescence and biomass measurements showed an increase in the actual photochemical efficiency (analyzed by Hansatech FMS1 chlorophyll fluorescence instrument) and biomass yield by 1.8 times and 80.1%.



中文翻译:

在循环水管道中开发具有三个可变微孔层的交错编织网状曝气器,以提高CO 2转化率,从而改善节肢动物的生长

交错编织网状物(SWM)曝气装置配有三个可变微孔层的开发是为了提高CO 2转化为HCO 3 -在再循环水管线用于促进CO 2利用率和节旋藻生长在大型滚道池。输入CO 2气体通过带有轴向矩形的第一阶段剪切,带有径向矩形的第二阶段剪切(等效孔径= 150μm)和具有均匀微孔的第三阶段剪切,被分解成较小的气泡(0.78-2.43 mm)。使用高速相机(MotionXtra HG-100K CMOS)和Image J图像处理软件来捕获气泡图像。与传统的钢管(TSP)曝气机相比,SWM曝气机的气泡生成直径和时间分别减少了72.3%和48.6%。优化结构(ε= 14,孔= 23微米)的SWM曝气器促进了碳化效率和HCO 3 -相比TSP曝气机,生物质转化效率分别提高了78.6%和64.6%。此外,叶绿素荧光和生物量测量结果显示实际光化学效率(通过Hansatech FMS1叶绿素荧光仪分析)和生物量产率分别提高了1.8倍和80.1%。

更新日期:2020-12-17
down
wechat
bug