Investigating membrane fouling associated with GAC fluidization on membrane with effluent from anaerobic fluidized bed bioreactor in domestic wastewater treatment

2017 ◽  
Vol 26 (2) ◽  
pp. 1170-1180 ◽  
Author(s):  
Muhammad Aslam ◽  
Jeonghwan Kim
Keyword(s):  
Wastewater Treatment ◽  
Fluidized Bed ◽  
Membrane Fouling ◽  
Domestic Wastewater ◽  
Fluidized Bed Bioreactor ◽  
Domestic Wastewater Treatment

Full scale fluidized bed anaerobic reactor for domestic wastewater treatment: performance, sludge production and biofilm

2004 ◽  
Vol 49 (11-12) ◽  
pp. 319-325 ◽  
Author(s):  
N.M. Mendonça ◽  
C.L. Niciura ◽  
E.P. Gianotti ◽  
J.R. Campos
Keyword(s):  
Wastewater Treatment ◽  
Fluidized Bed ◽  
Methanogenic Archaea ◽  
Domestic Wastewater ◽  
Full Scale ◽  
Anaerobic Reactor ◽  
Sulfate Reducing ◽  
Domestic Wastewater Treatment ◽  
The Difference ◽  
Sludge Production

This paper describes the performance, sludge production and biofilm characteristics of a full scale fluidized bed anaerobic reactor (32 m3) for domestic wastewater treatment. The reactor was operated with 10.5 m.h-1 upflow velocity, 3.2 h hydraulic retention time, and recirculation ratio of 0.85 and it presented removal efficiencies of 71 ± 8% of COD and 77 ± 14% of TSS. During the apparent steady-state period, specific sludge production and sludge age in the reactor were (0.116 ± 0.033) kgVSS. kgCOD-1 and (12 ± 5)d, respectively. Biofilm formed in the reactor presented two different patterns: one of them at the beginning of the colonization and the other of mature biofilm. These different colonization patterns are due to bed stratification in the reactor, caused by the difference in local-energy dissipation rates along the reactor's height, and density, shape, etc. of the bioparticles. The biofilm population is formed mainly of syntrophic consortia among sulfate reducing bacteria, methanogenic archaea such as Methanobacterium and Methanosaeta-like cells.

scholarly journals Influence of relaxation modes on membrane fouling in submerged membrane bioreactor for domestic wastewater treatment

Chemosphere ◽  
2017 ◽  
Vol 181 ◽  
pp. 19-25 ◽  
Author(s):  
Rasikh Habib ◽  
Muhammad Bilal Asif ◽  
Sidra Iftekhar ◽  
Zahiruddin Khan ◽  
Khum Gurung ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Membrane Fouling ◽  
Membrane Bioreactor ◽  
Domestic Wastewater ◽  
Submerged Membrane Bioreactor ◽  
Domestic Wastewater Treatment ◽  
Relaxation Modes

Integrated anaerobic fluidized-bed membrane bioreactor for domestic wastewater treatment

2014 ◽  
Vol 240 ◽  
pp. 362-368 ◽  
Author(s):  
Da-Wen Gao ◽  
Qi Hu ◽  
Chen Yao ◽  
Nan-Qi Ren ◽  
Wei-Min Wu
Keyword(s):  
Wastewater Treatment ◽  
Fluidized Bed ◽  
Membrane Bioreactor ◽  
Domestic Wastewater ◽  
Domestic Wastewater Treatment

scholarly journals Specific Anaerobic Fluidized Bed Bioreactors as Pretreatment to Microfiltration in Domestic Wastewater Treatment for Reuse

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
W. Xing ◽  
W. S. Guo ◽  
H. H. Ngo ◽  
A. Listowski ◽  
P. Cullum
Keyword(s):  
Fluidized Bed ◽  
Domestic Wastewater ◽  
Sewage Effluent ◽  
Critical Flux ◽  
Fluidized Bed Bioreactor ◽  
Domestic Wastewater Treatment ◽  
Dissolved Organics ◽  
Treated Sewage ◽  
Operation Period ◽  
Treated Sewage Effluent

Practical use of an anaerobic granular activated carbon (GAC) fluidized bed bioreactor (FBBR) as pretreatment to microfiltration was experimentally verified. A nature starch based cationic flocculants (GF) was employed in this study for testifying its impact on the performance of GAC–FBBR. The GAC–FBBR with and without addition of GF was evaluated in terms of dissolved organic carbon (DOC) removal from biologically treated sewage effluent (BTSE). With only a daily addition of 200 mg GF to GAC– FBBR and a depth of GAC of 500 mm, the biomass of GAC increased from 1.5 g/L to 4.2 g/L within operation period of 30 days while the system resulted in 5% better DOC removal. The results indicate that the GAC–FBBR as pretreatment could effectively remove the dissolved organics and improve the critical flux. Compared with the critical flux of BTSE with submerged microfiltration (SMF) alone (20 L/m2.h), the pretreatment by GAC–FBBR successfully increased the critical flux to 30 L/m2.h. Moreover, the addition of GF into GAC–FBBR could help in raising the critical flux to 35 L/m2.h.

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