[1]何启帆,王江坤,刘慧敏,等.硫自养波形潜流人工湿地的脱氮机理及工况优化[J].中国给水排水,2021,37(3):104-109.
　HE Qi-fan,WANG Jiang-kun,LIU Hui-min,et al.Nitrogen Removal Mechanism and Operating Condition Optimization of Sulfur Autotrophic and Wavy Subsurface Flow Constructed Wetland Process[J].China Water & Wastewater,2021,37(3):104-109.
点击复制

硫自养波形潜流人工湿地的脱氮机理及工况优化

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第37卷 期数: 2021年第3期 页码: 104-109 栏目: 出版日期: 2021-02-01
Title:
Nitrogen Removal Mechanism and Operating Condition Optimization of Sulfur Autotrophic and Wavy Subsurface Flow Constructed Wetland Process
作者:
何启帆，王江坤，刘慧敏，聂慧，汤毅，林犇，刘之豪，任拥政
(华中科技大学环境科学与工程学院，湖北武汉430074)
Author(s):
HE Qi-fan,WANG Jiang-kun,LIU Hui-min,NIE Hui,TANG Yi,LIN Ben,LIU Zhi-hao,REN Yong-zheng
(School of Environmental Science & Engineering, Hua Zhong University of Science and Technology, Wuhan 430074， China)
关键词:
硫自养反硝化; 波形潜流人工湿地; 气水比; 水力负荷; 脱氮机理; 工况优化
Keywords:
sulfur autotrophic denitrification; wavy subsurface flow constructed wetland; aeration gas to water ratio; hydraulic load; nitrogen removal mechanism; operating condition optimization
摘要:
将硫自养反硝化工艺与潜流人工湿地相结合，考察了其对低碳氮比污水中氮的去除效果。结果表明，增加曝气装置后硫自养波形潜流人工湿地的脱氮效果可以得到保障，在气水比为8 ∶1、水力负荷为0.8 m3/(m2·d)时，TN去除率为(70±5)%，出水TN浓度低于8 mg/L；NH4+-N去除率在90%以上，出水NH4+-N浓度低于3 mg/L；COD去除率为(50±2)%，出水COD浓度低于40 mg/L；pH值可维持在7～9。同时，石灰石填料具有同步除磷的效果。该工艺具有脱氮效率高、效果好、运行费用低的特点。
Abstract:
The effect of nitrogen removal in wastewater with low C/N ratio was investigated by combining sulfur autotrophic denitrification process with enhanced subsurface flow constructed wetland. It was shown that the nitrogen removal could be guaranteed in wavy subsurface flow constructed wetland with additional aeration device. When the ratio of aeration gas to water was 8 ∶1 and the hydraulic load was 0.8 m3/(m2·d), TN removal rate was (70±5)% and effluent TN was lower than 8 mg/L; NH4+-N removal rate maintained over 90% and effluent NH4+-N was lower than 3 mg/L; COD removal rate was (50±2)% and effluent COD was lower than 40 mg/L; and pH could maintain within 7-9. At the same time, the limestone filler had the effect of simultaneous phosphorus removal. The process was economical, efficient, and effective in nitrogen removal.

相似文献/References:

[1]王翔,陈涛,孔德芳,等.温度对硫自养水平潜流人工湿地脱氮效果的影响[J].中国给水排水,2020,36(23):75.
　WANG Xiang,CHEN Tao,KONG De-fang,et al.Effect of Temperature on Denitrification of Sulfur Autotrophic Horizontal Subsurface Flow Constructed Wetland[J].China Water & Wastewater,2020,36(3):75.
[2]蒋富海.自（异）养脱氮在低C/N污水处理厂的应用实践[J].中国给水排水,2021,37(12):124.
　JIANG Fu-hai.Application Practice of Autotrophic(Heterotrophic) Denitrification in a WWTP with Low C/N Ratio Influent[J].China Water & Wastewater,2021,37(3):124.
[3]王晓婷,李晓玲,芦昭霖,等.活性污泥系统中S/N对硝酸盐异化还原过程的影响[J].中国给水排水,2021,37(23):95.
　WANG Xiao-ting,LI Xiao-ling,LU Zhao-lin,et al.Effect of S/N Ratio on Dissimilatory Nitrite Reduction Process in Activated Sludge System[J].China Water & Wastewater,2021,37(3):95.

更新日期/Last Update: 2021-02-01