scholarly journals Anaerobic Treatment of Baker's Yeast Wastewater in UASB Reactor.

1995 ◽  
Vol 18 (5) ◽  
pp. 373-381 ◽  
Author(s):  
Kazuo SHIBAZAKI ◽  
Shigeru KOBAYASHI ◽  
Nobuyuki ASHIKAGA ◽  
Takashi MENJU
Keyword(s):  
Anaerobic Treatment ◽  
Baker’S Yeast ◽  
Uasb Reactor ◽  
Baker's Yeast ◽  
Yeast Wastewater

Integrated biological (anaerobic–aerobic) and physico-chemical treatment of baker's yeast wastewater

2005 ◽  
Vol 52 (10-11) ◽  
pp. 273-280 ◽  
Author(s):  
S. Kalyuzhnyi ◽  
M. Gladchenko ◽  
E. Starostina ◽  
S. Shcherbakov ◽  
B. Versprille
Keyword(s):  
Separation Process ◽  
Baker’S Yeast ◽  
Uasb Reactor ◽  
Baker's Yeast ◽  
Organic Loading ◽  
Cultivation Medium ◽  
Loading Rates ◽  
Physico Chemical ◽  
Yeast Production ◽  
Yeast Wastewater

The UASB reactor (35°C) was quite efficient for removal of bulk COD (52–74%) from simulated (on the basis of cultivation medium from the first separation process) general effluent of baker's yeast production (the average organic loading rates varied from 8.1 to 16g COD/l/d). The aerobic-anoxic biofilter (19–23°C) can be used for removal of remaining BOD and ammonia from anaerobic effluents; however, it suffered from COD-deficiency to fulfil denitrification requirements. To balance COD/N ratio, some bypass (∼10%) of anaerobically untreated general effluent should be added to the biofilter feed. The application of iron (III)-, aluminium- or calcium-induced coagulation for post-treatment of aerobic-anoxic effluents can fulfil the limits for discharge to sewerage (even for colour mainly exerted by hardly biodegradable melanoidins), however, the required amounts of coagulants were relatively high.

Anaerobic treatment of baker's yeast wastewater: II. Sulfate removal

Biomass ◽  
1990 ◽  
Vol 23 (1) ◽  
pp. 25-37 ◽  
Author(s):  
K.V. Lo ◽  
A. Chen ◽  
P.H. Liao
Keyword(s):  
Anaerobic Treatment ◽  
Baker’S Yeast ◽  
Baker's Yeast ◽  
Sulfate Removal ◽  
Yeast Wastewater

COD REDUCTION OF BAKER'S YEAST WASTEWATER USING BATCH ELECTROCOAGULATION

2014 ◽  
Vol 13 (12) ◽  
pp. 3153-3160 ◽  
Author(s):  
Zakaria Al-Qodah ◽  
Mohammad Al-Shannag ◽  
Kholoud Alananbeh ◽  
Nahla Bouqellah ◽  
Eman Assirey ◽  
...  
Keyword(s):  
Baker’S Yeast ◽  
Baker's Yeast ◽  
Cod Reduction ◽  
Yeast Wastewater

The effect of anaerobic pre-treatment on the inert soluble COD of fermentation industry effluents

1995 ◽  
Vol 32 (12) ◽  
pp. 35-42 ◽  
Author(s):  
G. Yilmaz ◽  
I. Öztürk
Keyword(s):  
Treatment Plant ◽  
Anaerobic Treatment ◽  
Baker’S Yeast ◽  
Full Scale ◽  
Operating Conditions ◽  
Baker's Yeast ◽  
Series Of Experiments ◽  
Pre Treatment ◽  
Process Wastewater ◽  
Volumetric Loading

The objective of this study is to determine the inert soluble COD of wastewaters from the fermentation industry. In this context, a series of experiments were performed for various effluents from baker's yeast industry including raw process wastewater, anaerobic pre-treatment plant effluents, domestic and washing waters mixture. The inert COD ratio (SISO) for the raw effluents from baker's yeast industry was determined as 0.1. This ratio was in the range of 0.20 to 0.30 for the anaerobically pre-treated effluents. TheSISO ratios for the wastewater simulating the effluent of the existing full-scale aerobic treatment plant have varied from 0.18 to 0.48. Such a large variation has been originated from the operating conditions of the existing full-scale anaerobic treatment plants. The higher volumetric loading rates and shorter sludge retention times correspond the lower SISO ratios for the full-scale anaerobic treatment systems in general.

Electrochemical treatment of Baker's yeast wastewater containing melanoidin: optimization through response surface methodology

2012 ◽  
Vol 65 (12) ◽  
pp. 2183-2190 ◽  
Author(s):  
E. Gengec ◽  
M. Kobya ◽  
E. Demirbas ◽  
A. Akyol ◽  
K. Oktor
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Current Density ◽  
Baker’S Yeast ◽  
Optimum Operating ◽  
Operating Parameters ◽  
Baker's Yeast ◽  
Toc Removal ◽  
Removal Efficiencies ◽  
Yeast Wastewater

Effluents from Baker's yeast production plant contain a high percentage of color and a large amount of organic load. In the present study, Baker's yeast wastewater (BYW) is treated with the electrocoagulation (EC) process using Al electrodes. Operating parameters (pH, current density, color intensity and operating time) are optimized by response surface methodology (RSM). Quadratic models are developed for the responses which are removal efficiencies of color, chemical oxygen demand (COD) and total organic carbon (TOC) and operating cost (OC). Optimum operating parameters and responses are determined as initial pH 5.2, current density of 61.3 A/m2 and operation time of 33 min, and 71% of color, 24% of COD, 24% of TOC removal efficiencies and OC of 0.869 €/m3, respectively. The quadratic model fits for all responses very well with R2 (>0.95). This paper clearly shows that RSM is able to optimize the operating parameters to maximize the color, COD and TOC removal efficiencies and minimize the OC.

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