Comparison between kinetics of autochthonous marine bacteria in activated sludge and granular sludge systems at different salinity and SRTs

2019 ◽  
Vol 148 ◽  
pp. 425-437 ◽  
Author(s):  
Santo Fabio Corsino ◽  
Marco Capodici ◽  
Francesca Di Pippo ◽  
Valter Tandoi ◽  
Michele Torregrossa
Keyword(s):  
Activated Sludge ◽  
Marine Bacteria ◽  
Granular Sludge ◽  
Kinetics Of

Deemulsification of Water-in-Oil Emulsion with Sludges

1987 ◽  
Vol 22 (3) ◽  
pp. 437-443 ◽  
Author(s):  
N. Kosaric ◽  
Z. Duvnjak
Keyword(s):  
Activated Sludge ◽  
Room Temperature ◽  
Petroleum Refinery ◽  
Treatment Plant ◽  
Granular Sludge ◽  
Activated Sludge Process ◽  
Sludge Treatment ◽  
Oil Emulsion ◽  
Water In Oil Emulsion ◽  
Aerobic Sludge

Abstract Aerobic sludge from a municipal activated sludge treatment plant, sludge from a conventional municipal anaerobic digester, aerobic sludge from an activated sludge process of a petroleum refinery, and granular sludge from an upflow sludge blanket reactor (USBR) were tested in the deemulsification of a water-in-oil emulsion. All sludges except the last one, showed a good deemulsification capability and could he used for a partial deemulsification of such emulsions. The rate and degree of the deemulsifications increased with an increase in sludge concentrations. The deemulsifications were faster at 85°C and required smaller amounts of sludge than in the case of the deemulsifications at room temperature. An extended stirring (up to a certain limit) in the course of the dispersion of sludge emulsion helped the deemulsification. Too vigorous agitation had an adverse effect. The deemulsification effect of sludge became less visible with an increase in the dilution of emulsion which caused an increase in its spontaneous deemulsification.

Biodegradation Kinetics of 17α-Ethinylestradiol in Activated Sludge Treatment Processes

2015 ◽  
Vol 32 (7) ◽  
pp. 637-646 ◽  
Author(s):  
Mariko J. Lust ◽  
Ryan M. Ziels ◽  
Stuart E. Strand ◽  
Heidi L. Gough ◽  
H. David Stensel
Keyword(s):  
Activated Sludge ◽  
Biodegradation Kinetics ◽  
Sludge Treatment ◽  
Treatment Processes ◽  
Kinetics Of

Kinetics of styrene biodegradation in synthetic wastewaters using an industrial activated sludge

2010 ◽  
Vol 184 (1-3) ◽  
pp. 111-117 ◽  
Author(s):  
R. Babaee ◽  
B. Bonakdarpour ◽  
B. Nasernejad ◽  
N. Fallah
Keyword(s):  
Activated Sludge ◽  
Kinetics Of

Textile wastewater treatment: Aerobic granular sludge vs activated sludge systems

2014 ◽  
Vol 54 ◽  
pp. 337-346 ◽  
Author(s):  
Adriana Maria Lotito ◽  
Marco De Sanctis ◽  
Claudio Di Iaconi ◽  
Giovanni Bergna
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
Granular Sludge ◽  
Textile Wastewater ◽  
Aerobic Granular Sludge ◽  
Textile Wastewater Treatment ◽  
Activated Sludge Systems

Denitrification Kinetics of High-Strength Nitrate in Granular Sludge Reactors

2018 ◽  
Vol 46 (8) ◽  
pp. 1800239 ◽  
Author(s):  
Tulasi V. Krishna Mohan ◽  
Yarlagadda V. Nancharaiah ◽  
Vayalam P. Venugopalan ◽  
Pedapati M. Satya Sai
Keyword(s):  
Granular Sludge ◽  
High Strength ◽  
Denitrification Kinetics ◽  
Kinetics Of

The impact of phosphorus deficiency on nitrification - case study of a biological pretreatment plant for rendering plant effluent

1996 ◽  
Vol 34 (1-2) ◽  
pp. 229-236 ◽  
Author(s):  
O. Nowak ◽  
K. Svardal ◽  
H. Kroiss
Keyword(s):  
Activated Sludge ◽  
Nitrogen Removal ◽  
Phosphorus Deficiency ◽  
Extended Model ◽  
Biological Pretreatment ◽  
Dynamic Conditions ◽  
Low Levels ◽  
The Impact ◽  
Kinetics Of

The highly concentrated wastewater of a rendering plant (7 g COD/l and 1.1 g TKN/l on average) is biologically pretreated in an activated sludge plant. Due to low loading of this plant, full nitrification and nitrogen removal are generally achieved. In periods of high COD loads, however, the nitrification capacity was substantially reduced. Control analyses revealed extreme phosphorus deficiency and that only nitrite, but no nitrate was formed. An extended model based on the ‘Activated sludge model No. 1’ has been used to investigate the kinetics of nitrification in the case of phosphorus deficiency, the demand for phosphorus under dynamic conditions, as well as the effect of variations in the nitrogen load at low levels of phosphate.

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