The anaerobic treatment of soft drink wastewater in UASB and hybrid reactors

1997 ◽  
Vol 66 (3) ◽  
pp. 291-301 ◽  
Author(s):  
S. V. Kalyuzhnyi ◽  
J. Valadez Saucedo ◽  
J. Rodriguez Martinez
2015 ◽  
Vol 2 (1) ◽  
pp. 25-35 ◽  
Author(s):  
Chinenyenwa Nweke ◽  
◽  
Joseph Nwabanne ◽  
Philomena Igbokwe ◽  
◽  
...  

2018 ◽  
Vol 5 (1) ◽  
pp. 20 ◽  
Author(s):  
Hasti Suprihatin

The existing soft drink factory can produce liquid organic waste with a COD content starts from 6,000 mg/l to 15,000 mg/l with a discharge by 10 m3/day to 100 m3/day. The objective of the research is to obtain organic waste processing equipment that produces processing that meets the threshold value. The research outcomes are as a reference for the industry that requires a representative organic waste treatment unit.The research is divided into two stages in two years. The first year of the research is semi-aerobic and anaerobic process, then for second year is aerobic process research, semi-aerobic process, anaerobic process and aerobic process. The 12 hours HRT process at the first run resulted in a COD concentration of 12,000 mg/l to 8,765 mg/l directly entering an anaerobic I and out 4,640 mg/l and entering anaerobic II reactor and exiting with COD 1,380 mg/l. Decrease percentage of total COD (12,000 – 1,380) x 100 /12,000 = 88.5%. The 18 hours HRT process at the first run resulted in a COD concentration by 12,000 mg/l to 8,665 mg/l entering the anaerobic reactor I and out 4,125 mg/l and entering the anaerobic II and out with COD 965 mg/l. Decrease in total COD (12,000 - 965) x 100 / 12,000 = 91.95%.From the experimental stage of semi-aerobic step-screening-anaerobic treatment of two-stage liquid liquor soft drink obtained COD concentration of 12,000 mg/l can be reduced concentration to the threshold specified with removal of 88.5% - 91.95%.


1987 ◽  
Vol 22 (3) ◽  
pp. 474-490 ◽  
Author(s):  
R.L. Droste ◽  
S.R. Guiot ◽  
S.S. Gorur ◽  
K.J. Kennedy

Abstract Anaerobic treatment of dilute synthetic wastewater (300-1,000 mg chemical oxygen demand/L using laboratory upflow sludge blanket filter reactors with and without effluent recycle is described. Treatment of dilute synthetic wastewater at hydraulic retention times less than 1 and 2 h in reactors without and with recycle, respectively, resulted in biomass washout as the solids retention time decreased to less than 12 d. Reseeding would be required to operate at these critical hydraulic retention times for extended periods. Treatment of dilute synthetic wastewater at hydraulic retention times between 3-12 h resulted in soluble COD removal efficiencies between 84-95% treating 300 mg COD/L. At a 3 h hydraulic retention time, solids retention time of 80 d and stable reactor biomass concentrations of 25 g volatile suspended solids/L were maintained.


1997 ◽  
Vol 36 (6-7) ◽  
pp. 33-39 ◽  
Author(s):  
Stephen R. Harper ◽  
Frederick G. Pohland

The selection and morphology of anaerobic cultures grown in anaerobic packed-bed reactors, with soft-drink wastewater serving as the primary substrate, are compared for four types of laboratory-scale reactors/flow regimes: upflow, downflow, and a pair of two-stage systems. Results were obtained from scanning electron micrographs of cultures withdrawn from sampling ports located in the top, middle, and bottom of each reactor. Samples were compared with respect to the distribution of rod-like, coccoid, and filamentous microbes.


2011 ◽  
Vol 63 (9) ◽  
pp. 1894-1898 ◽  
Author(s):  
M. Tokumura ◽  
M. Sekine ◽  
Y. Morito ◽  
Y. Kawase

The decolorization and the mineralization of the colored soft drink wastewater including Oolong tea polyphenols by the photo Fenton reaction have been investigated. The decolorization of the colored soft drink wastewater including Oolong tea polyphenols by the photo Fenton reaction could be divided into 3 phases. Just after H2O2 was added to the solution, the color of the solution immediately increased from absorbance of 0.247 to 0.711 at the wavelength of 400 nm, which was defined as the 1st phase. Subsequently the significant decolorization by the photo Fenton reaction occurred at the 2nd phase. Finally, complete decolorization (the color attributed to the color of Fe3+) could be achieved in 180 min at the 3rd phase. The instantaneous and considerable color increase at the 1st phase could be attributed to the formation of intermediate colored compounds like quinones and soluble iron complexes produced by the Fenton reaction. About 95% mineralization of model colored soft drink wastewater with 229 mg L−1 initial TOC concentration was achieved after 165 min.


1994 ◽  
Vol 30 (12) ◽  
pp. 181-191 ◽  
Author(s):  
D. Defour ◽  
D. Derycke ◽  
J. Liessens ◽  
P. Pipyn

Thanks to undeniable advantages as recovery of energy and a low sludge production, anaerobic wastewater treatment has received recognition in the last decade. However due to the slow methanogenic growth, inreactor biomass accumulation is essential to maintain high loading rates. Indeed wash-out of biomass is one of the main problems encountered in the anaerobic treatment of industrial effluents. A broad scoped overview of the different reactor technologies is given each with its proper biomass accumulation system. All of them are founded on two basic mechanisms for biomass accumulation: separation and retention. Settling (Anaerobic Contact reactor), ultrafiltration and flotation (FlotametP) are the techniques used to separate externally the biomass from the effluent after which the biomass can be recirculated to the anaerobic reactor. Concentration of biomass can also be achieved by attachment to a mobile (Fluidized Bed reactor) or a static carrier with possible entrapment in its macroporous structure (Anaerobic Filter reactor). The UASB-reactor incorporates retention as well as separation. By stimulating granular growth, biomass is accumulated in the lower part of the reactor. A three phase separator at the top of the reactor contributes to the final clarification of the effluent. Hybrid reactors eventually combine different biomass accumulation mechanisms: granulation, external biomass separation (Upflow Anaerobic Contact reactor) and fixation (Upflow Anaerobic Contact Filter reactor).


2015 ◽  
Vol 50 (8) ◽  
pp. 1308-1312 ◽  
Author(s):  
P. Vergine ◽  
F. Sousa ◽  
M. Lopes ◽  
F. Silva ◽  
T. Gameiro ◽  
...  

2018 ◽  
Vol 220 ◽  
pp. 8-15 ◽  
Author(s):  
Graham Cuff ◽  
Ariel E. Turcios ◽  
Ehsan Mohammad-pajooh ◽  
Olaf Kujawski ◽  
Dirk Weichgrebe ◽  
...  

2016 ◽  
Vol 38 (4) ◽  
pp. 433-442 ◽  
Author(s):  
Ivonne Linares Hernández ◽  
Carlos Barrera Díaz ◽  
Mario Valdés Cerecero ◽  
Perla Tatiana Almazán Sánchez ◽  
Monserrat Castañeda Juárez ◽  
...  

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