Controlling Gaseous Nitrogen Oxide Emissions and Nitrogen Removal Performance in Hollow Fiber Membrane-Aerated Biofilm Reactors

2008 ◽  
Vol 2008 (1) ◽  
pp. 327-342
Author(s):  
Kevin R. Gilmore ◽  
Nancy G. Love ◽  
Barth F. Smets ◽  
Akihiko Terada ◽  
Jay L. Garland
Keyword(s):  
Nitrogen Oxide ◽  
Nitrogen Removal ◽  
Hollow Fiber ◽  
Hollow Fiber Membrane ◽  
Fiber Membrane ◽  
Nitrogen Oxide Emissions ◽  
Gaseous Nitrogen ◽  
Biofilm Reactors

scholarly journals Nitrogen oxide reduction through absorbent solutions containing nitric acid and hydrogen peroxide in hollow fiber membrane modules

Heliyon ◽  
2019 ◽  
Vol 5 (12) ◽  
pp. e02987 ◽  
Author(s):  
Sutrasno Kartohardjono ◽  
Clarissa Merry ◽  
Mohamad Sofwan Rizky ◽  
Catharina Candra Pratita
Keyword(s):  
Hydrogen Peroxide ◽  
Nitric Acid ◽  
Nitrogen Oxide ◽  
Hollow Fiber ◽  
Hollow Fiber Membrane ◽  
Oxide Reduction ◽  
Fiber Membrane ◽  
Nitrogen Oxide Reduction ◽  
Membrane Modules

Micro-aeration with hollow fiber membrane enhanced the nitrogen removal in constructed wetlands

2019 ◽  
Vol 27 (21) ◽  
pp. 25877-25885 ◽  
Author(s):  
Xinshan Song ◽  
Yufeng Zhao ◽  
Yuhui Wang ◽  
Zhihao Si ◽  
Xiaoyan Ge ◽  
...  
Keyword(s):  
Constructed Wetlands ◽  
Nitrogen Removal ◽  
Hollow Fiber ◽  
Hollow Fiber Membrane ◽  
Fiber Membrane

Study on Membrane Fouling of a Hydrogen-Based Membrane Biofilm Reactor Treating Nitrate-Contaminated Drinking Water

2013 ◽  
Vol 361-363 ◽  
pp. 814-817
Author(s):  
Gang Li ◽  
Jun Yu ◽  
Yan Hao Zhang ◽  
Lei Gao ◽  
Hua Zhang
Keyword(s):  
Drinking Water ◽  
Nitrogen Removal ◽  
Hollow Fiber ◽  
Membrane Fouling ◽  
Hollow Fiber Membrane ◽  
Biofilm Reactor ◽  
Fiber Membrane ◽  
Membrane Biofilm Reactor ◽  
Contaminated Drinking Water ◽  
Total Nitrogen Removal

A hollow fiber membrane biofilm reactor (MBfR) using Polyethylene (PE) membranes was investigated for denitrification in nitrate-contimanitated drinking water. The reactor was operated over 85 days with influent nitrate loading increasing gradually. The result showed that maximum of nitrate denitrification rate achieved was 3.84 g NO3ˉ-N/m3/d (1.36 g NO3ˉ-N/m2/d) and the total nitrogen removal was more than 96%. The results also showed that the membrane pollution was mainly caused by the mineral sedimentation and EPS.

Organic Stabilization and Nitrogen Removal in Membrane Separation Bioreactor for Domestic Wastewater Treatment

1992 ◽  
Vol 25 (10) ◽  
pp. 231-240 ◽  
Author(s):  
C. Chiemchaisri ◽  
Y. K. Wong ◽  
T. Urase ◽  
K. Yamamoto
Keyword(s):  
Total Nitrogen ◽  
Nitrogen Removal ◽  
Hollow Fiber ◽  
Membrane Separation ◽  
Hollow Fiber Membrane ◽  
Membrane Surface ◽  
Aeration Tank ◽  
Intermittent Aeration ◽  
Permeate Flux ◽  
Fiber Membrane

In this study, organic stabilization and nitrogen removal were investigated using a household type hollow fiber membrane separation bioreactor of 6 2 1 volume. The process employed direct solid-liquid separation by hollow fiber membrane inside an activated sludge aeration tank. By providing highly turbulent conditions within the separation zone in conjunction with Jet aerating installation inside the membrane module, sludge accumulation on the membrane surface and inside the module can be reduced. Permeate flux obtained after 330 days of operation was 0.2 m/d under intermittent suction. High degree of organic stabilization was obtained in the system by operation without sludge wastage except for sampling purposes. Continuous and intermittent aeration modes were investigated in the study. The average effluent COD concentration of 20.8 and 16.5 mg/l were observed during continuous and intermittent aerating application respectively. Degree of nitrification depended upon DO concentration of mixed liquor during aeration period. Introduction of intermittent aeration enhanced total nitrogen removal up to 80% or more by simultaneous nitrification and denitrification, resulting in average of 4.9 mg/l of total nitrogen in the effluent. Increase in DO in aeration period from 1.5–2 mg/l to 4–5 mg/l improved percentage of nitrogen removal to more than 90%. Rejection of 4–6 log virus concentration by gel layer formed on the membrane surface was also observed.

Sign in / Sign up

Export Citation Format

Share Document