不同微孔曝气设备对饮用原水增氧效果中试研究
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摘要
选取3种不同的微孔曝气设备,针对其向饮用水原水的增氧效果进行了中试研究。结果表明,微纳米气泡设备的增氧效果最好,年平均DO含量提升率为15.80%,氧利用率为11.8%;楔形微孔曝气器和微孔橡胶膜管的增氧效果比较接近,年平均DO含量提升率分别为9.74%、9.08%,氧利用率分别为0.77%和0.68%。3种设备在各季度的季平均DO含量提升率和氧利用率2方面均表现为春季>夏季>秋季>冬季。微孔曝气设备的DO含量提升率和氧利用率会受水温和进水DO含量的影响,进水DO含量越接近饱和含量,其提升率和氧利用率则越低。
Three different kinds of micropore aeration equipment were selected to conduct pilot-scale studies on the oxygenation enhancement effect of the drinking water resource. Results showed that the micro-nano aeration equipment had the best oxygenation effect. The annual average DO content increase rate was 15.80%, and the oxygen utilization rate was 11.8%. The aerobic effect of the wedge-shaped ring and the rubber membrane tube was relatively close. The annual average DO content increase rate was 9.74% and 9.08%, and the oxygen utilization rate was 0.77% and 0.68%, respectively.The seasonal average DO content increase rate and oxygen utilization rate of the three facilities in each season were spring > summer > autumn > winter.The DO content increase rate and oxygen utilization rate of the microporous aeration equipment were affected by the water temperature and the DO content in the influent. When the DO content of the influent water was closer to the saturation content, and the increase rate and oxygen utilization rate were lower.
Three different kinds of micropore aeration equipment were selected to conduct pilot-scale studies on the oxygenation enhancement effect of the drinking water resource. Results showed that the micro-nano aeration equipment had the best oxygenation effect. The annual average DO content increase rate was 15.80%, and the oxygen utilization rate was 11.8%. The aerobic effect of the wedge-shaped ring and the rubber membrane tube was relatively close. The annual average DO content increase rate was 9.74% and 9.08%, and the oxygen utilization rate was 0.77% and 0.68%, respectively.The seasonal average DO content increase rate and oxygen utilization rate of the three facilities in each season were spring > summer > autumn > winter.The DO content increase rate and oxygen utilization rate of the microporous aeration equipment were affected by the water temperature and the DO content in the influent. When the DO content of the influent water was closer to the saturation content, and the increase rate and oxygen utilization rate were lower.
引文
[1]左倬,陈煜权,卿杰,等.微气泡曝气技术对微污染水体增氧效果的中试研究[J].环境工程,2016,34(5):11-14.
[2]杨丽,廖传华,朱跃钊,等.微纳米气泡特性及在环境污染控制中的应用[J].化工进展,2012,31(6):1333-1337.
[3]LIU S,WANG Q H,SUN T C,et al.The effect of different types of micro-bubbles on the performance of the coagulation flotation process for coke waste-water[J].J Chen Technol Biotechnol,2012,87(2):206-215.
[4]柳姝,黄培坤,汪群慧,等.混凝-微气泡气浮法处理含藻废水的研究[J].环境工程学报,2008,2(12):1639-1643.
[5]ZIMMERMAN W B,TESAR V,BANDULASENA H C H.Towards energy efficient nanobubble generation with fluidic oscillation[J].Current opinion in colloid&Interface Science,2011,16:350-356.
[6]邓超,杨丽,陈海军,等.微纳米气泡发生装置及其应用的研究进展[J].石油化工,2014,43(10):1206-1213.
[7]OHGAKI K,KHABH N Q,JODEN Y,et al.Physicochemical approach to nanobubble solutions[J].Chemical Engineer Science,2010,65:1296-1300.
[8]徐彬,郑之奇,张珂.微纳米气泡改善太湖入湖河道水质的工程实例研究:以苏州南北华翔河水质改善工程为例[J].环境监控与预警,2013,5(1):15-16.
[9]杨强,沈旭,唐伟,等.微纳米气泡改善杭州城市河道水生态环境的工程应用研究[J].环境科学与管理,2014,39(9):76-79.
[10]叶春,张保君,李春华,等.微纳米气泡对植物浮床处理支浜水脱氮效果的影响[J].环境科学研究,2012,25(10):1173-1179.
[11]刘春,张磊,杨景亮,等.微气泡曝气中氧传质特性研究[J].环境工程学报,2010,4(3):585-589.
[12]高大文,王淑莹,彭永臻,等.温度变化对DO和ORP作为过程控制参数的影响[J].环境科学,2003,24(1):63-69.
[13]郑最胜,李南方.纳米气泡简介[J].化学教学,2008(3):41-43.
[2]杨丽,廖传华,朱跃钊,等.微纳米气泡特性及在环境污染控制中的应用[J].化工进展,2012,31(6):1333-1337.
[3]LIU S,WANG Q H,SUN T C,et al.The effect of different types of micro-bubbles on the performance of the coagulation flotation process for coke waste-water[J].J Chen Technol Biotechnol,2012,87(2):206-215.
[4]柳姝,黄培坤,汪群慧,等.混凝-微气泡气浮法处理含藻废水的研究[J].环境工程学报,2008,2(12):1639-1643.
[5]ZIMMERMAN W B,TESAR V,BANDULASENA H C H.Towards energy efficient nanobubble generation with fluidic oscillation[J].Current opinion in colloid&Interface Science,2011,16:350-356.
[6]邓超,杨丽,陈海军,等.微纳米气泡发生装置及其应用的研究进展[J].石油化工,2014,43(10):1206-1213.
[7]OHGAKI K,KHABH N Q,JODEN Y,et al.Physicochemical approach to nanobubble solutions[J].Chemical Engineer Science,2010,65:1296-1300.
[8]徐彬,郑之奇,张珂.微纳米气泡改善太湖入湖河道水质的工程实例研究:以苏州南北华翔河水质改善工程为例[J].环境监控与预警,2013,5(1):15-16.
[9]杨强,沈旭,唐伟,等.微纳米气泡改善杭州城市河道水生态环境的工程应用研究[J].环境科学与管理,2014,39(9):76-79.
[10]叶春,张保君,李春华,等.微纳米气泡对植物浮床处理支浜水脱氮效果的影响[J].环境科学研究,2012,25(10):1173-1179.
[11]刘春,张磊,杨景亮,等.微气泡曝气中氧传质特性研究[J].环境工程学报,2010,4(3):585-589.
[12]高大文,王淑莹,彭永臻,等.温度变化对DO和ORP作为过程控制参数的影响[J].环境科学,2003,24(1):63-69.
[13]郑最胜,李南方.纳米气泡简介[J].化学教学,2008(3):41-43.