Pilot and Full-Scale Experience in Anaerobic Treatment of Brewer's Yeast Processing Wastewater

1991 ◽  
Vol 23 (7-9) ◽  
pp. 1167-1177 ◽  
Author(s):  
M. Yoda ◽  
S. Imabayashi ◽  
N. Suzuki
Keyword(s):  
Pilot Study ◽  
Fine Particles ◽  
Granular Sludge ◽  
Anaerobic Treatment ◽  
Full Scale ◽  
Processing Plant ◽  
Brewer’S Yeast ◽  
Brewer's Yeast ◽  
Start Up ◽  
Cobalt And Nickel

The anaerobic expanded micro-carrier bed (MCB) process, which utilizes fine particles as expanded bed media to enhance granular sludge formation, was applied to the wastewater from a brewer's yeast processing plant. Based on the results3 of the pilot study, in which 97 to 99 % COD removals were maintained at 13 to 24 kgCOD/m3/day, a full-scale MCB plant with a total reactor volume of 985 m was constructed at Asahi's Koganei plant. Though not found in the pilot study, cobalt and nickel were found to be deficient in the wastewater and had to be supplemented during the start-up. However, a sufficient amount of granular sludge was cultivated BO that the reactor could accept the design loading, within three months of operation and achieve the average COD removal of 93.5% at 9.8 kgCOD/m3/day. Thus, it was clearly demonstrated in the full-scale installation that the MCB process could provide a reliable and predictable way to cultivate granular sludge necessary for efficient anaerobic treatment.

Full-scale granular sludge Anammox process

2007 ◽  
Vol 55 (8-9) ◽  
pp. 27-33 ◽  
Author(s):  
W.R. Abma ◽  
C.E. Schultz ◽  
J.W. Mulder ◽  
W.R.L. van der Star ◽  
M. Strous ◽  
...  
Keyword(s):  
Granular Sludge ◽  
Full Scale ◽  
High Density ◽  
Stable Operation ◽  
Loading Rates ◽  
Start Up ◽  
Anammox Process ◽  
Anammox Granular Sludge

The start-up of the first full scale Anammox reactor is complete. The reactor shows stable operation, even at loading rates of 10 kg N/m3.d. This performance is the result of the formation of Anammox granules, which have a high density and settling velocities exceeding 100 m/h. With this performance, the Anammox granular sludge technology has been proven on full scale.

New Technologies for Anaerobic Wastewater Treatment

1986 ◽  
Vol 18 (12) ◽  
pp. 41-53 ◽  
Author(s):  
Look Hulshoff Pol ◽  
Gatze Lettinga
Keyword(s):  
Wastewater Treatment ◽  
New Technologies ◽  
Anaerobic Treatment ◽  
Full Scale ◽  
Upflow Anaerobic Sludge Blanket ◽  
Anaerobic Sludge ◽  
Anaerobic Wastewater Treatment ◽  
Start Up ◽  
Uasb Reactors ◽  
Sludge Granulation

Presently anaerobic wastewater treatment is becoming an accepted simple technology for the treatment of a variety of wastewaters. Of the different treatment systems that have been developed the UASB process (Upflow Anaerobic Sludge Blanket) has found the widest application. Almost all of the more than 60 full scale UASB reactors in operation now, are running satisfactorily. The excellent sludge retention generally found in UASB-reactors is obtained by sludge granulation, which can be seen as a sludge immobilization process. The presently available insight into the sludge granulation process is briefly presented, together with the strategy to be applied for performing a proper first start-up and secondary start-up of UASB reactors, viz. using granular seed sludge. The effect of the presence of SS with regard to the loading potentials of anaerobic treatment systems will be discussed. The experiences obtained with some full scale applications of the UASB-process are presented.

Case history - two stage, low-rate anaerobic treatment facility for South American alcochemical/citric acid wastewater

1998 ◽  
Vol 38 (4-5) ◽  
pp. 45-52
Author(s):  
D. R. Wilson ◽  
I. C. Page ◽  
A. A. Cocci ◽  
R. C. Landine
Keyword(s):  
Citric Acid ◽  
Pilot Study ◽  
Case History ◽  
Oxygen Demand ◽  
Anaerobic Treatment ◽  
Full Scale ◽  
Treatment System ◽  
South American ◽  
Two Stage ◽  
Low Rate

This paper describes the case history of a two-stage, low-rate anaerobic treatment system at a South American alcochemical and citric acid plant. Environmental concerns associated with land irrigation of a high-strength industrial wastewater forced the plant to implement wastewater treatment. This paper will also outline results from an on-site pilot study which was conducted to develop the design criteria for the full-scale system. The installed full-scale system will be described in detail, including the plant s physical layout, design parameters, system performance, biogas production and utilization, and some of its unique aspects. Among these is the use of a floating biofilter (bagasse) on the second stage to eliminate any nuisance odours from off gases. All biogas generated in the first stage is collected, with a significant portion drawn off and burned in a retrofitted 8000 kW boiler to generate process steam. The excess biogas is flared. Effluent from the treatment system is combined with other low-strength process plant streams and discharged to a river. During the first year of operation, performance has been very good, with chemical oxygen demand (COD), biochemical oxygen demand (BOD), and total suspended solids (TSS) removals averaging 74 percent, 93 percent, and 70 percent, respectively. The corresponding COD, BOD, and TSS results obtained in the pilot study were 74 percent, 96 percent, and 70 percent, respectively, and agree very well with those being obtained in full scale.

The investigation of the advanced treatment of municipal wastewater by modular flotation-filtration systems and reuse for irrigation

1996 ◽  
Vol 33 (10-11) ◽  
pp. 171-179 ◽  
Author(s):  
Milos Krofta ◽  
Dusan Miskovic ◽  
David Burgess ◽  
Edward Fahey
Keyword(s):  
Pilot Study ◽  
Municipal Wastewater ◽  
Full Scale ◽  
Advanced Treatment ◽  
Start Up ◽  
Turbidity Level ◽  
Hydraulic Load ◽  
The Impact ◽  
Kinetics Of ◽  
Pilot Tests

The objective of this study was to provide clarified municipal wastewater effluent at the turbidity level of less than 2.0 NTU and reuse for landscape irrigation (golf course). For that purpose, during pilot -study first was used a combined flotation-filtration module-clarifier alone (Alternative I). A particularly designed configuration of the primary flotation unit and combined flotation-filtration clarifier, as a modular clarification system was used in the next step of the investigation (Alternative II). In addition, start up of the full scale plant was performed as well. In the first phase of this study, the impact of the type and concentration of coagulant and flocculant was tested. As a result, mechanisms of flocculation were proposed. Only under the moderate hydraulic loads (75.7-151.4 LPM) during pilot tests by Alternative I, was it possible to reach satisfactory turbidity reduction. By the Alternative II, the clarification performance was improved under the higher hydraulic load (302.8 LPM). The kinetics of the investigated flotation systems were assesed by empirical flotation models. Based on the pilot-study, Alternative II is recommended in order to reduce the high solids loadings under a higher hydraulic load, and it provided irrigation water at a required rate of 3785 m3/d during start up and optimization of the full scale plant.

High-Rate Anaerobic Treatment of Industrial Wastewaters

1991 ◽  
Vol 24 (1) ◽  
pp. 69-74 ◽  
Author(s):  
J. Rintala
Keyword(s):  
Granular Sludge ◽  
Anaerobic Treatment ◽  
High Rate ◽  
Upflow Anaerobic Sludge Blanket ◽  
Synthetic Wastewater ◽  
Uasb Reactor ◽  
Anaerobic Sludge ◽  
Industrial Wastewaters ◽  
Start Up ◽  
Uasb Reactors

Anaerobic mesophilic treatment of synthetic (a mixture of acetate and methanol) and thermomechanical pulping (TMP) wastewater was studied in laboratory-scale upflow anaerobic sludge blanket (UASB) reactors and filters with emphasis on the process start-up. The reactors were inoculated with nongranular sludge. The start-up of mesophilic and thermophilic processes inoculated with mesophilic granular sludge was investigated in UASB reactors fed with diluted vinasse. The start-up proceeded faster in the filters than in the UASB reactors with TMP and synthetic wastewater. Loading rates of over 15 kgCODm−3d−1 with 50-60 % COD removal efficiencies were achieved in 10 days in the mesophilic and in 50 days in the thermophilic UASB reactor treating vinasse. The results show that high-rate anaerobic treatment can be applied to different types of industrial wastewaters under varying conditions.

Pilot-Scale Experiments on Anaerobic Treatment of Wastewater from a Fish Processing Plant

1990 ◽  
Vol 22 (1-2) ◽  
pp. 463-474 ◽  
Author(s):  
P. Balslev-Olesen ◽  
A. Lynggaard-Jensen ◽  
Claus Nickelsen
Keyword(s):  
High Efficiency ◽  
Ph Control ◽  
Pilot Scale ◽  
Anaerobic Treatment ◽  
Organic Load ◽  
Processing Plant ◽  
Biogas Yield ◽  
Load Variations ◽  
Start Up ◽  
Quality Institute

From November 1985 to May 1988, experiments with anaerobic treatment of wastewater from a fish cannery were carried out at the Water Quality Institute (WQI) at Aarhus, Denmark. An anaerobic fixed filter (AF) reactor and an anaerobic fluidized bed (AFB) reactor were used for the pilot-scale experiments. The reactors were monitored and controlled by a microcomputer. The aim of the experiments was to determine the biogas yield from COD reduction and to show the efficiency of the reactor as a function of the following operation parameters: Volumetric organic load, 3–15 kg COD/(m3·day); temperature, 30–35°C, pH (control of); salinity, 1–4%. Operational data are presented, including start-up after stand-by periods of varying lengths, from one day to three months. Both reactors showed excellent capability of handling load variations and were capable of quick start-up and high efficiency even after long stand-by periods.

Uasb Treatment of Monosodium Glutamate Wastewater; Dynamic and Kinetic Behaviour of the Start-Up of the Reactor

1992 ◽  
Vol 26 (9-11) ◽  
pp. 2441-2444 ◽  
Author(s):  
Y.-S. Cao ◽  
H. Zhang ◽  
Y.-Z. Li
Keyword(s):  
Feasibility Study ◽  
Monosodium Glutamate ◽  
Granular Sludge ◽  
Anaerobic Treatment ◽  
Gas Production ◽  
Kinetic Constants ◽  
Uasb Reactor ◽  
Design Parameters ◽  
Start Up ◽  
Monod Kinetic

Simple reactors were used to carry out the feasibility study of the anaerobic treatment of monosodium glutamate (MSG) waste water by granular sludge and the determination of Monod kinetic constants. Aerobic flocculent sludge was compared with the granular sludge. It took one month for a UASB reactor seeded with granular sludge to increase the space loading rate of MSG wastewater from 1. 87 kgCOD/m3. day to 18. 9 kgCOD/m3. day. The maximum influent concentration of COD ranged between 4500 to 5000 mg/L, and the removal efficiency was around 80%. Gas production and process stability was satisfied. Preliminary design parameters and some recommendations were given. Sludge bed expanding and wash–out during start–up process were observed and discussed. The application of the kinetic constants obtained from the feasibility study to the UASB start–up process indicated that the activity of the granular sludge increased substantially; they could not be used to describe the UASB process.

Anaerobic Treatment of Low, Medium and High Strength Effluent in the Agro-industry

1999 ◽  
Vol 40 (8) ◽  
pp. 221-228 ◽  
Author(s):  
W. Driessen ◽  
P. Yspeert
Keyword(s):  
High Strength ◽  
Anaerobic Treatment ◽  
Full Scale ◽  
Processing Plant ◽  
Internal Circulation ◽  
Volumetric Loading ◽  
Two Stages ◽  
New Generation ◽  
Very High ◽  
Ic Technology

Based on the widely applied UASB system for anaerobic wastewater treatment a new generation of more advanced anaerobic reactor systems have recently been developed, according to the so-called expanded sludge bed concept. A successful version of this concept is the Internal Circulation (IC) reactor, characterized by the biogas separation in two stages within a reactor with a high height/diameter ratio and the gas-driven internal effluent circulation. The IC system can handle high upflow liquid and gas velocities, which makes treatment of low strength effluents at short hydraulic retention times, as well as treatment of high strength effluents at very high volumetric loading rates feasible. During the past years the IC technology has been successfully applied at full scale on a variety of industrial wastewaters. This article describes the design and operational results of three full scale anaerobic treatment plants with Internal Circulation reactors treating low, medium and high strength effluents from a dairy industry, food processing plant and brewery respectively.

Pilot-scale thermophilic anaerobic treatment of wastewaters from seasonal vegetable processing industry

1997 ◽  
Vol 36 (2-3) ◽  
pp. 279-285 ◽  
Author(s):  
J. A. Rintala ◽  
S. S. Lepistö
Keyword(s):  
Pilot Study ◽  
Food Industry ◽  
Buffer Capacity ◽  
Granular Sludge ◽  
Pilot Scale ◽  
Anaerobic Treatment ◽  
Cod Removal ◽  
Uasb Reactor ◽  
Anaerobic Sludge ◽  
Loading Rates

Thermophilic anaerobic treatment of food industry wastewaters was studied using a 0.65 m3 upflow anaerobic sludge bed (UASB) reactor. The reactor was operated at 55°C and placed on the premises of a factory manufacturing deep-frozen goods from vegetables. The hot (>80-90°C) and concentrated (COD 14-79 g/l) wastewater streams, deriving from steam peeling and blanching of carrot and potato were used. The UASB reactor was inoculated with a small amount of granular sludge from a full-scale mesophilic UASB reactor. Prior to inoculation, the inoculum was acclimated to 55°C for 2 days. The reactor was fed with a mixture of wastewaters diluted to the desired COD. The reactor was started with loading rates of about 1.2 kgCOD/m3d. After the initial acidification of the process, apparently due to insufficient buffer capacity, the COD removal started to improve and reached 60% within 35 days of inoculation. At the end of the 70 days run, more than 80% COD removal was achieved with loading rates of about 4 kgCOD/m3d. The pilot-study run was limited due to the end of the seasonal production in the target factory. The results of the pilot study together with the results from the intensive laboratory studies suggest the feasibility of thermophilic anaerobic treatment for the studied wastewaters.

scholarly journals Enrichment of Expanded Granular Sludge Bed Reactor during Start-Up Phase

2020 ◽  
Vol 8 (6) ◽  
pp. 2625-2628
Keyword(s):  
Treatment Process ◽  
Granular Sludge ◽  
Anaerobic Treatment ◽  
Organic Loading Rate ◽  
Stable Operation ◽  
Microbial Culture ◽  
Fatty Acid Accumulation ◽  
Start Up ◽  
Working Volume ◽  
Ph Level

The start-up period in anaerobic treatment process is generally measured as the period engaged for stable operation to be attained. A 14.47 litres working volume of bench scale anaerobic Expended Granular Sludge Bed Reactor was designed and fabricated for the treatment of slaughter house wastewater. The reactor has been continuously operated at mesophilic range with an organic loading rate from 0.013 to 0.014 kg COD/m3 .day with an Influent COD of 592 to 648 mg/l during start-up process with a HRT of 3 days. In anaerobic treatment process the main complexity to develop most suitable microbial culture in the reactor in terms of the granular formation and establishment of biomass. Throughout 70 days of continuous monitoring of the reactor, it was found that the Expended Granular Sludge Bed Reactor was attained a steady state from 54th day to 61th day with maximum of 91.14% removal efficiency during start-up phase. During the start up period Volatile Fatty Acid accumulation was also observed from 18th day to 27th day. The pH level also declined at these stages.

Sign in / Sign up

Export Citation Format

Share Document