Performance of a pilot-scale packed bed reactor for perchlorate reduction using a sulfur oxidizing bacterial consortium

2011 ◽  
Vol 109 (3) ◽  
pp. 637-646 ◽  
Author(s):  
Amber R. Boles ◽  
Teresa Conneely ◽  
Robert McKeever ◽  
Paul Nixon ◽  
Klaus R. Nüsslein ◽  
...  
Keyword(s):  
Packed Bed ◽  
Bacterial Consortium ◽  
Pilot Scale ◽  
Packed Bed Reactor ◽  
Perchlorate Reduction ◽  
Sulfur Oxidizing

scholarly journals Hydrogen sulfide removal from biogas using a salak fruit seeds packed bed reactor with sulfur oxidizing bacteria as biofilm

2016 ◽  
Vol 4 (2) ◽  
pp. 2370-2377 ◽  
Author(s):  
Retno A.S. Lestari ◽  
Wahyudi B. Sediawan ◽  
Siti Syamsiah ◽  
Sarto ◽  
Jose Antonio Teixeira
Keyword(s):  
Hydrogen Sulfide ◽  
Packed Bed ◽  
Packed Bed Reactor ◽  
Sulfide Removal ◽  
Hydrogen Sulfide Removal ◽  
Sulfur Oxidizing ◽  
Sulfur Oxidizing Bacteria

Photocatalytic degradation of 1,2-dichloroethane using immobilized PAni-TiO2 nanocomposite in a pilot-scale packed bed reactor

2019 ◽  
Vol 155 ◽  
pp. 72-83 ◽  
Author(s):  
Mahdi Mohsenzadeh ◽  
Seyed Ahmad Mirbagheri ◽  
Samad Sabbaghi
Keyword(s):  
Photocatalytic Degradation ◽  
Packed Bed ◽  
Pilot Scale ◽  
Packed Bed Reactor

Liquid flow non-idealities and hold-up in a pilot scale packed bed reactor with cocurrent gas-liquid upflow

1996 ◽  
Vol 51 (11) ◽  
pp. 2709-2714 ◽  
Author(s):  
A.M. Thanos ◽  
P.A. Galtier ◽  
N.G. Papayannakos
Keyword(s):  
Liquid Flow ◽  
Packed Bed ◽  
Pilot Scale ◽  
Packed Bed Reactor

scholarly journals Tannery Wastewater Recalcitrant Compounds Foster the Selection of Fungi in Non-Sterile Conditions: A Pilot Scale Long-Term Test

2021 ◽  
Vol 18 (12) ◽  
pp. 6348
Author(s):  
Francesco Spennati ◽  
Salvatore La China ◽  
Giovanna Siracusa ◽  
Simona Di Gregorio ◽  
Alessandra Bardi ◽  
...  
Keyword(s):  
Oxygen Demand ◽  
Packed Bed ◽  
Pilot Scale ◽  
Packed Bed Reactor ◽  
Tannery Wastewater ◽  
Start Up ◽  
Quebracho Tannin ◽  
Entire Experiment ◽  
Bacteria And Fungi

This study demonstrated that a microbial community dominated by fungi can be selected and maintained in the long-term under non-sterile conditions, in a pilot-scale packed-bed reactor fed with tannery wastewater. During the start-up phase, the reactor, filled with 0.6 m3 of polyurethane foam cubes, was inoculated with a pure culture of Aspergillus tubingensis and Quebracho tannin, a recalcitrant compound widely used by tannery industry, was used as sole carbon source in the feeding. During the start-up, fungi grew attached as biofilm in carriers that filled the packed-bed reactor. Subsequently, the reactor was tested for the removal of chemical oxygen demand (COD) from an exhaust tanning bath collected from tanneries. The entire experiment lasted 121 days and average removals of 29% and 23% of COD and dissolved organic carbon (DOC) from the tannins bath were achieved, respectively. The evolution of the microbial consortium (bacteria and fungi) was described through biomolecular analyses along the experiment and also developed as a function of the size of the support media.

Enzymatic Synthesis of α-Butylglucoside Linoleate in a Packed Bed Reactor for Future Pilot Scale-up

2000 ◽  
Vol 16 (4) ◽  
pp. 589-594 ◽  
Author(s):  
M.-P. Bousquet ◽  
R.-M. Willemot ◽  
P. Monsan ◽  
E. Boures
Keyword(s):  
Enzymatic Synthesis ◽  
Scale Up ◽  
Packed Bed ◽  
Pilot Scale ◽  
Packed Bed Reactor

Pretreatment of Poultry Processing Wastewater in a Pilot-Scale Anaerobic Filter

1990 ◽  
Vol 22 (9) ◽  
pp. 9-16 ◽  
Author(s):  
S. R. Harper ◽  
C. C. Ross ◽  
G. E. Valentine ◽  
F. G. Pohland
Keyword(s):  
Retention Time ◽  
Low Cost ◽  
Packed Bed ◽  
Pilot Scale ◽  
Laboratory Scale ◽  
Packed Bed Reactor ◽  
Processing Plant ◽  
Oil And Grease ◽  
Working Volume ◽  
Poultry Processing

Wastewater from a typical poultry processing plant in the southeastern U.S.A. was treated on site with a pilot-scale anaerobic packed-bed reactor. The reactor had a working volume of 3.2 m3, was filled with 15-cm diameter polyethylene random-pack media, and was operated at 35°C with a retention time of 21 hours and at a loading rate of 2.8 kgCOD/m3d−1. Under these conditions, treatment efficiencies were sufficient to meet typical surcharge-free municipal discharge requirements, with effluent soluble COD of 440 mg/L, soluble BOD5 of 190 mg/L, fats, oil and grease (FOG) of 10 mg/L, and total suspended solids of 140 mg/L. Results from pilot operation are compared to those of previous laboratory-scale studies, where similar results were obtained with less than half of the hydraulic retention time. Differences in treatment on pilot vs. laboratory scale were largely due to differences in wastewater variability and reactor operation. Recommendations for future studies to reduce the costs of treatment, including emphasis on types of low-cost packing, amounts of packing media, and heating requirements are presented.

Treatment of landfill leachate by a pilot-scale modified Ludzack-Ettinger and sulfur-utilizing denitrification process

2004 ◽  
Vol 50 (6) ◽  
pp. 141-148
Author(s):  
J.-H. Bae ◽  
I.-S. Lee ◽  
M.-S. Jang ◽  
K.-H. Ahn ◽  
S.-H. Lee
Keyword(s):  
Removal Efficiency ◽  
Nitrogen Removal ◽  
Landfill Leachate ◽  
Loading Rate ◽  
Removal Rate ◽  
Packed Bed ◽  
Pilot Scale ◽  
Packed Bed Reactor ◽  
Treatment System ◽  
Flow Mode

Nitrogen removal efficiency of a pilot-scale system consisted of Modified Ludzack-Ettinger (MLE) followed by sulfur-utilizing denitrification (SUDNR) process was evaluated with a landfill leachate. For SUDNR, a down-flow mode sulfur packed bed reactor (SPBR) filled with sulfur and limestone particles was used. Although total nitrogen removal efficiency of the MLE process was about 80% at the recycle ratio of 4, effluent contained 350-450 mg/L NO3--N. Up to a loading rate of 1.2 kg NO3--N/m3-day, the SPBR could achieve complete removal of nitrate, and nitrate removal rate was kept to that level even at higher loading rate. When a COD/N ratio of MLE process was maintained at 2 instead of 4, more organics with molecular weight less than 500 were utilized for heterotrophic denitrification although denitrification was not complete with the lack of electron donors. Clogging in the SPBR, mainly by the accumulation of nitrogen gas in the pores, could easily be removed by introducing the effluent in an upward direction for 1 min at 1 hr intervals. The proposed treatment system could achieve nitrate free effluent with a slight increase in chemical cost. Furthermore, depending on further COD removal requirement after biological treatment, the proposed treatment system can be an economical solution.

Effect of the organic loading rate on the performance and microbial populations during the anaerobic treatment of tequila vinasses in a pilot-scale packed bed reactor

2017 ◽  
Vol 93 (2) ◽  
pp. 591-599 ◽  
Author(s):  
Jorge Arreola-Vargas ◽  
Raúl Snell-Castro ◽  
Nuvia M Rojo-Liera ◽  
Víctor González-Álvarez ◽  
Hugo O Méndez-Acosta
Keyword(s):  
Loading Rate ◽  
Packed Bed ◽  
Pilot Scale ◽  
Anaerobic Treatment ◽  
Packed Bed Reactor ◽  
Microbial Populations ◽  
Organic Loading Rate ◽  
Organic Loading ◽  
Tequila Vinasses
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