Long term performance and dynamics of microbial biofilm communities performing sulfur-oxidizing autotrophic denitrification in a moving-bed biofilm reactor

2019 ◽  
Vol 166 ◽  
pp. 115038 ◽  
Author(s):  
Yan-Xiang Cui ◽  
Basanta Kumar Biswal ◽  
Mark C.M. van Loosdrecht ◽  
Guang-Hao Chen ◽  
Di Wu
Keyword(s):  
Biofilm Reactor ◽  
Autotrophic Denitrification ◽  
Moving Bed Biofilm Reactor ◽  
Microbial Biofilm ◽  
Moving Bed ◽  
Sulfur Oxidizing ◽  
Long Term Performance ◽  
Term Performance

scholarly journals Long-term performance evaluation of an anoxic sulfur oxidizing moving bed biofilm reactor under nitrate limited conditions

2019 ◽  
Vol 5 (6) ◽  
pp. 1072-1081 ◽  
Author(s):  
Ramita Khanongnuch ◽  
Francesco Di Capua ◽  
Aino-Maija Lakaniemi ◽  
Eldon R. Rene ◽  
Piet N. L. Lens
Keyword(s):  
Performance Evaluation ◽  
Biofilm Reactor ◽  
Synthetic Wastewater ◽  
Moving Bed Biofilm Reactor ◽  
Moving Bed ◽  
Molar Ratios ◽  
Sulfur Oxidizing ◽  
Long Term Performance ◽  
Term Performance

An anoxic sulfur-oxidizing moving bed biofilm reactor (MBBR) treating sulfur and nitrate-contaminated synthetic wastewater was monitored for 306 days under feed nitrogen-to-sulfur (N/S) molar ratios of 0.5, 0.3 and 0.1.

scholarly journals Application of a moving-bed biofilm reactor for sulfur-oxidizing autotrophic denitrification

2017 ◽  
Vol 77 (4) ◽  
pp. 1027-1034 ◽  
Author(s):  
Yan-Xiang Cui ◽  
Di Wu ◽  
Hamish R. Mackey ◽  
Ho-Kwong Chui ◽  
Guang-Hao Chen
Keyword(s):  
Wastewater Treatment ◽  
Steady State ◽  
Removal Efficiency ◽  
Nitrogen Removal ◽  
Biofilm Reactor ◽  
Laboratory Scale ◽  
Autotrophic Denitrification ◽  
Moving Bed Biofilm Reactor ◽  
Moving Bed ◽  
Sulfur Oxidizing

Abstract Sulfur-oxidizing autotrophic denitrification (SO-AD) was investigated in a laboratory-scale moving-bed biofilm reactor (MBBR) at a sewage temperature of 22 °C. A synthetic wastewater with nitrate, sulfide and thiosulfate was fed into the MBBR. After 20 days' acclimation, the reduced sulfur compounds were completely oxidized and nitrogen removal efficiency achieved up to 82%. The operation proceeded to examine the denitrification by decreasing hydraulic retention time (HRT) from 12 to 4 h in stages. At steady state, this laboratory-scale SO-AD MBBR achieved the nitrogen removal efficiency of 94% at the volumetric loading rate of 0.18 kg N·(mreactor3·d)−1. The biofilm formation was examined periodically: the attached volatile solids (AVS) gradually increased corresponding to the decrease of HRT and stabilized at about 1,300 mg AVS·Lreactor−1 at steady state. This study demonstrated that without adding external organic carbon, SO-AD can be successfully applied in moving-bed carriers. The application of SO-AD MBBR has shown the potential for sulfur-containing industrial wastewater treatment, brackish wastewater treatment and the upgrading of the activated sludge system. Moreover, the study provides direct design information for the full-scale MBBR application of the sulfur-cycle based SANI process.

Simulation of Long-Term Performance of an Innovative Membrane-Aerated Biofilm Reactor

2020 ◽  
Vol 146 (6) ◽  
pp. 04020041
Author(s):  
Zebo Long ◽  
Ali K. Oskouie ◽  
Thomas E. Kunetz ◽  
Jeff Peeters ◽  
Nick Adams ◽  
...  
Keyword(s):  
Biofilm Reactor ◽  
Long Term Performance ◽  
Term Performance
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