Kinetic Model for Selective Cultivation of Microfungi in a Microscreen Process for Food Processing Wastewater Treatment and Biomass Production

2003 ◽  
Vol 23 (23) ◽  
pp. 289-300 ◽  
Author(s):  
J. H. van Leeuwen ◽  
Z. Hu ◽  
T. Yi ◽  
A. L. III Pometto ◽  
B. Jin
Keyword(s):  
Wastewater Treatment ◽  
Kinetic Model ◽  
Biomass Production ◽  
Food Processing ◽  
Food Processing Wastewater

Photosynthetic bacteria production from food processing wastewater in sequencing batch and membrane photo-bioreactors

2012 ◽  
Vol 65 (3) ◽  
pp. 504-512 ◽  
Author(s):  
S. Chitapornpan ◽  
C. Chiemchaisri ◽  
W. Chiemchaisri ◽  
R. Honda ◽  
K. Yamamoto
Keyword(s):  
Biomass Production ◽  
Food Processing ◽  
Photosynthetic Bacteria ◽  
Membrane Separation ◽  
Batch Reactor ◽  
Anaerobic Treatment ◽  
Infrared Light ◽  
Total Biomass ◽  
Improved Performance ◽  
Food Processing Wastewater

Application of photosynthetic process could be highly efficient and surpass anaerobic treatment in releasing less greenhouse gas and odor while the biomass produced can be utilized. The combination of photosynthetic process with membrane separation is possibly effective for water reclamation and biomass production. In this study, cultivation of mixed culture photosynthetic bacteria from food processing wastewater was investigated in a sequencing batch reactor (SBR) and a membrane bioreactor (MBR) supplied with infrared light. Both photo-bioreactors were operated at a hydraulic retention time (HRT) of 10 days. Higher MLSS concentration achieved in the MBR through complete retention of biomass resulted in a slightly improved performance. When the system was operated with MLSS controlled by occasional sludge withdrawal, total biomass production of MBR and SBR photo-bioreactor was almost equal. However, 64.5% of total biomass production was washed out with the effluent in SBR system. Consequently, the higher biomass could be recovered for utilization in MBR.

Potential of Food Processing Wastewater Treatment for Reuse

2019 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
Rifaat Abdel Wahaab ◽  
Enas Aboutaleb ◽  
Mahmoud Salem ◽  
Osama Amin
Keyword(s):  
Wastewater Treatment ◽  
Food Processing ◽  
Food Processing Wastewater

Settling of food-processing anaerobic sludge

2014 ◽  
Vol 49 (4) ◽  
pp. 319-327
Author(s):  
Arcadio Rodriguez-Prado ◽  
Leonard E. Ripley ◽  
Jorge H. Garcia-Orozco
Keyword(s):  
Wastewater Treatment ◽  
Food Processing ◽  
Settling Velocity ◽  
T Test ◽  
Anaerobic Sludge ◽  
Preliminary Results ◽  
Sedimentation Model ◽  
Sludge Settling ◽  
Food Processing Wastewater

This paper presents preliminary results of settling tests on anaerobic sludge from food-processing wastewater treatment, using 2, 4, and 8 L cylinders. A sedimentation model from the literature was applied to the sedimentation data. The specific settling velocities for the 2 and 4 L cylinders did not differ (t-test; P = 0.896), therefore the data were pooled. The specific settling velocity mean was nearly three times higher (P = 0.027) for the 8 L cylinder (21.03 × 10−4 ± 6.27 × 10−4 m/s) than the pooled smaller cylinder size (7.29 × 10−4 ± 2.32 × 10−4 m/s). Measurement challenges were encountered while working with the 8 L cylinder. Given that tests using a 1 L cylinder resulted in sludge compression, the results indicate that use of both 2 and 4 L cylinders is feasible for lab-scale measurement of sludge settling.

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