Application of the upflow anaerobic sludge bed (UASB) process for treatment of complex wastewaters at low temperatures

Koster, I W; Lettinga, G

doi:10.1002/bit.260271004

Title: Application of the upflow anaerobic sludge bed (UASB) process for treatment of complex wastewaters at low temperatures

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Abstract

The feasibility of the upflow anaerobic sludge bed (UASB) process for the treatment of potato starch wastewater at low ambient temperatures was demonstrated by operating two 5.65 l reactors at 14 degrees C and 20 degrees C, respectively. The organic space loading rates achieved in these laboratory-scale reactors were 3 kg COD/cubic m/day at 14 degrees C and 4-5 kg COD/cubic m/day at 20 degrees C. The corresponding sludge loading rates were 0.12 kg COD/kg VSS/day at 14 degrees C and 0.16-0.18 kg COD/kg VSS/day at 20 degrees C. These findings are of considerable practical importance because application of anaerobic treatment at low ambient temperatures will lead to considerable savings in energy needed for operating the process. As compared with various other anaerobic wastewater treatment processes, a granular sludge upflow process represents one of the best options developed so far. Although the overall sludge yield under psychrophilic conditions is slightly higher than under optimal mesophilic conditions, this doesn't seriously hamper the operation of the process. The extra sludge yield, due to accumulation of slowly hydrolyzing substrate ingredients, was 4.75% of the COD input at 14 degrees C and 1.22% of the COD input at 20 degrees C. 26 references.

Authors:: Koster, I W; Lettinga, G

Publication Date:: Tue Oct 01 00:00:00 EDT 1985

Research Org.:: Wageningen Agricultural Univ., Netherland

OSTI Identifier:: 6159355

Resource Type:: Journal Article

Journal Name:: Biotechnol. Bioeng.; (United States)

Additional Journal Information:: Journal Volume: 27:10

Country of Publication:: United States

Language:: English

Subject:: 09 BIOMASS FUELS; BIOREACTORS; ENERGY CONSUMPTION; WASTE WATER; ANAEROBIC DIGESTION; BENCH-SCALE EXPERIMENTS; CHEMICAL OXYGEN DEMAND; ENERGY CONSERVATION; FEASIBILITY STUDIES; LOADING RATE; MESOPHILIC CONDITIONS; PERFORMANCE; SLUDGES; STARCH; TEMPERATURE DEPENDENCE; WASTE PROCESSING; BIOCONVERSION; CARBOHYDRATES; DIGESTION; HYDROGEN COMPOUNDS; LIQUID WASTES; MANAGEMENT; ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; POLYSACCHARIDES; PROCESSING; REAGENTS; SACCHARIDES; WASTE MANAGEMENT; WASTES; WATER; 090122* - Hydrocarbon Fuels- Preparation from Wastes or Biomass- (1976-1989); 140504 - Solar Energy Conversion- Biomass Production & Conversion- (-1989)

Citation Formats


                    Koster, I W, and Lettinga, G. Application of the upflow anaerobic sludge bed (UASB) process for treatment of complex wastewaters at low temperatures.  United States: N. p., 1985. 
        Web.  doi:10.1002/bit.260271004.

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                    Koster, I W, & Lettinga, G. Application of the upflow anaerobic sludge bed (UASB) process for treatment of complex wastewaters at low temperatures.  United States.  https://doi.org/10.1002/bit.260271004

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                    Koster, I W, and Lettinga, G. 1985.  
        "Application of the upflow anaerobic sludge bed (UASB) process for treatment of complex wastewaters at low temperatures".  United States.  https://doi.org/10.1002/bit.260271004.

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@article{osti_6159355,

  title        = {Application of the upflow anaerobic sludge bed (UASB) process for treatment of complex wastewaters at low temperatures},

  author       = {Koster, I W and Lettinga, G},

  abstractNote = {The feasibility of the upflow anaerobic sludge bed (UASB) process for the treatment of potato starch wastewater at low ambient temperatures was demonstrated by operating two 5.65 l reactors at 14 degrees C and 20 degrees C, respectively. The organic space loading rates achieved in these laboratory-scale reactors were 3 kg COD/cubic m/day at 14 degrees C and 4-5 kg COD/cubic m/day at 20 degrees C. The corresponding sludge loading rates were 0.12 kg COD/kg VSS/day at 14 degrees C and 0.16-0.18 kg COD/kg VSS/day at 20 degrees C. These findings are of considerable practical importance because application of anaerobic treatment at low ambient temperatures will lead to considerable savings in energy needed for operating the process. As compared with various other anaerobic wastewater treatment processes, a granular sludge upflow process represents one of the best options developed so far. Although the overall sludge yield under psychrophilic conditions is slightly higher than under optimal mesophilic conditions, this doesn't seriously hamper the operation of the process. The extra sludge yield, due to accumulation of slowly hydrolyzing substrate ingredients, was 4.75% of the COD input at 14 degrees C and 1.22% of the COD input at 20 degrees C. 26 references.},

  doi          = {10.1002/bit.260271004},

  url          = {https://www.osti.gov/biblio/6159355},
  journal      = {Biotechnol. Bioeng.; (United States)},
number       = ,

  volume       = 27:10,

  place        = {United States},

  year         = {Tue Oct 01 00:00:00 EDT 1985},

  month        = {Tue Oct 01 00:00:00 EDT 1985}

}

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