Influences of Temperature and Substrate Particle Content on Granular Sludge Bed Anaerobic Digestion

Influences of temperature (25–35 °C) and substrate particulate content (3.0–9.4 g total suspended solids (TSS)/L) on granular sludge bed anaerobic digestion (AD) were analyzed in lab-scale reactors using manure as a substrate and through modeling. Two particle levels were tested using raw (RF) and centrifuged (CF) swine manure slurries, fed into a 1.3-L lab-scale up-flow anaerobic sludge bed reactor (UASB) at temperatures of 25 °C and 35 °C. Biogas production increased with temperature in both high- and low-particle-content substrates; however, the temperature effect was stronger on high-particle-content substrate. RF and CF produced a comparable amount of biogas at 25 °C, suggesting that biogas at this temperature came mainly from the digestion of small particles and soluble components present in similar quantities in both substrates. At 35 °C, RF showed significantly higher biogas production than CF, which was attributed to increased (temperature-dependent) disintegration of larger solid particulates. Anaerobic Digestion Model No.1 (ADM1) based modeling was carried out by separating particulates into fast and slow disintegrating fractions and introducing temperature-dependent disintegration constants. Simulations gave a better fit for the experimental data than the conventional ADM1 model.

Download Full-text

Simulation of the Impact of Higher Ammonia Recycle Loads Caused by Upgrading Anaerobic Sludge Digesters

Water Quality Research Journal ◽

10.2166/wqrj.2005.053 ◽

2005 ◽

Vol 40 (4) ◽

pp. 491-499 ◽

Cited By ~ 2

Author(s):

Jeremy T. Kraemer ◽

David M. Bagley

Keyword(s):

Anaerobic Digestion ◽

Biogas Production ◽

Treatment Plant ◽

Anaerobic Sludge ◽

Content Increase ◽

Limited Information ◽

Dynamic Simulations ◽

Treatment Train ◽

Temperature Liquid ◽

The Impact

Abstract Upgrading conventional single-stage mesophilic anaerobic digestion to an advanced digestion technology can increase sludge stability, reduce pathogen content, increase biogas production, and also increase ammonia concentrations recycled back to the liquid treatment train. Limited information is available to assess whether the higher ammonia recycle loads from an anaerobic sludge digestion upgrade would lead to higher discharge effluent ammonia concentrations. Biowin, a commercially available wastewater treatment plant simulation package, was used to predict the effects of anaerobic digestion upgrades on the liquid train performance, especially effluent ammonia concentrations. A factorial analysis indicated that the influent total Kjeldahl nitrogen (TKN) and influent alkalinity each had a 50-fold larger influence on the effluent NH3 concentration than either the ambient temperature, liquid train SRT or anaerobic digestion efficiency. Dynamic simulations indicated that the diurnal variation in effluent NH3 concentration was 9 times higher than the increase due to higher digester VSR. Higher recycle NH3 loads caused by upgrades to advanced digestion techniques can likely be adequately managed by scheduling dewatering to coincide with periods of low influent TKN load and ensuring sufficient alkalinity for nitrification.

Download Full-text

Influence of zinc on biogas production and antibiotic resistance gene profiles during anaerobic digestion of swine manure

Bioresource Technology ◽

10.1016/j.biortech.2017.07.032 ◽

2017 ◽

Vol 244 ◽

pp. 63-70 ◽

Cited By ~ 19

Author(s):

Ranran Zhang ◽

Xiaojuan Wang ◽

Jie Gu ◽

Yajun Zhang

Keyword(s):

Antibiotic Resistance ◽

Anaerobic Digestion ◽

Resistance Gene ◽

Biogas Production ◽

Antibiotic Resistance Gene ◽

Swine Manure ◽

Gene Profiles

Download Full-text

Granular Sludge Formation in the Anaerobic Expanded Micro-Carrier Bed Process

Water Science & Technology ◽

10.2166/wst.1989.0215 ◽

1989 ◽

Vol 21 (4-5) ◽

pp. 109-120 ◽

Cited By ~ 23

Author(s):

M. Yoda ◽

M. Kitagawa ◽

Y. Miyaji

Keyword(s):

Scale Up ◽

Granular Sludge ◽

Laboratory Scale ◽

Upflow Anaerobic Sludge Blanket ◽

Anaerobic Sludge ◽

Expanded Bed ◽

Sludge Formation ◽

Support Materials ◽

Anaerobic Sludge Blanket

The anaerobic expanded micro-carrier bed (MCB) process, which utilizes fine (50-100 microns) support materials as expanded bed media, was found to have the ability to cultivate granular sludge similar to that formed in the upflow anaerobic sludge blanket (UASB) process. Two laboratory-scale MCB reactors were studied with VFA and glucose wastewaters to clarify the role of the micro-carrier and the influence of substrates on granular sludge formation. Based on these results, a scale-up model with a reactor volume of 800 1 was successfully operated using molasses wastewater to demonstrate the feasibility of granular sludge formation in the MCB process.

Download Full-text

Improved biogas production of dry anaerobic digestion of swine manure

Bioresource Technology ◽

10.1016/j.biortech.2019.122188 ◽

2019 ◽

Vol 294 ◽

pp. 122188 ◽

Cited By ~ 7

Author(s):

Youqian Xiao ◽

Hongnan Yang ◽

Han Yang ◽

Hong Wang ◽

Dan Zheng ◽

...

Keyword(s):

Anaerobic Digestion ◽

Biogas Production ◽

Swine Manure ◽

Dry Anaerobic Digestion

Download Full-text

Anaerobic digestion of chicken feather with swine manure or slaughterhouse sludge for biogas production

Waste Management ◽

10.1016/j.wasman.2011.10.024 ◽

2012 ◽

Vol 32 (3) ◽

pp. 404-409 ◽

Cited By ~ 35

Author(s):

Yun Xia ◽

Daniel I. Massé ◽

Tim A. McAllister ◽

Carole Beaulieu ◽

Emilio Ungerfeld

Keyword(s):

Anaerobic Digestion ◽

Biogas Production ◽

Swine Manure ◽

Chicken Feather

Download Full-text

Comparison of One-Phase and Two-Phase Anaerobic Digestion of Swine Manure

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.726-731.2875 ◽

2013 ◽

Vol 726-731 ◽

pp. 2875-2880

Author(s):

Wen Hao Liu ◽

Shi Jie Tian ◽

Shu Biao Wu ◽

Xiao Qian Zhang ◽

Chang Le Pang ◽

...

Keyword(s):

Anaerobic Digestion ◽

Biogas Production ◽

Swine Manure ◽

Continuous Stirred Tank Reactor ◽

Organic Loading ◽

Two Phase ◽

Biogas Yield ◽

Loading Rates ◽

Significant Difference ◽

The One

The possible exploitation of two-phase anaerobic digestion for swine manure was investigated in this study. One-phase and two-phase anaerobic digestion process were investigated in continuous stirred-tank reactor with hydraulic retention times 15 days (hydrolysis and acidification for 3 days and methanogenic12 days in two-phase). When the organic loading rates were equal to or less than 4 g VS/L day, the biogas yield and volumetric production of two processes were no significant difference. However, in the case of organic loading rates being equal to or higher than 5.0 g VS/L day, two-phase biogas yield and volumetric biogas production averaged 0.294 L CH4/g VS added and 2.218 L/L day, compared with one-phase averaged 0.255L CH4/g VS added and 2.168 L/L day, respectively. Significant advantages in saving cost of biogas project were indicated by the comparison of biogas production and COD degradation in the one-phase and two-phase processes.

Download Full-text

The contribution of thermophilic anaerobic digestion to the stable operation of wastewater sludge treatment

Water Science & Technology ◽

10.2166/wst.2002.0648 ◽

2002 ◽

Vol 46 (4-5) ◽

pp. 447-453 ◽

Cited By ~ 21

Author(s):

J. Zábranská ◽

M. Dohányos ◽

P. Jeníček ◽

P. Zaplatílková ◽

J. Kutil

Keyword(s):

Anaerobic Digestion ◽

Biogas Production ◽

Removal Rate ◽

Wastewater Sludge ◽

Anaerobic Sludge ◽

Stable Operation ◽

Sludge Treatment ◽

Thermophilic Anaerobic Digestion ◽

Mesophilic Digestion ◽

Pathogens Removal

Thermophilic anaerobic digestion of sewage sludge has been successfully operated in full-scale tanks almost three years. The higher loading capacity and specific biogas production rate in comparison with mesophilic digestion was proved. Thermophilic anaerobic sludge is also more resistant against foaming problems. Biogas from thermophilic tanks contains less hydrogen sulphide and other malodorous substances. Pathogens removal rate is apparently more efficient in the thermophilic process.

Download Full-text

Effect of 1,1,2,2-Tetrachloroethane on the Performance of Upflow Anaerobic Sludge Bed (UASB) Reactors

Water Science & Technology ◽

10.2166/wst.1999.0409 ◽

1999 ◽

Vol 40 (8) ◽

pp. 153-159

Author(s):

M. Navarrete ◽

N. Rodríguez ◽

R. Amils ◽

J. L. Sanz

Keyword(s):

Anaerobic Digestion ◽

Environmental Pollutants ◽

Chlorinated Hydrocarbons ◽

Granular Sludge ◽

Synthetic Wastewater ◽

Anaerobic Sludge ◽

High Concentration ◽

Chlorinated Aliphatic Hydrocarbons ◽

Industrial Wastewaters ◽

Uasb Reactors

Chlorinated aliphatic hydrocarbons (CAH) are important environmental pollutants since they are industrially used for a wide variety of applications. Chlorinated hydrocarbons are cited as important contributors to the inhibition of anaerobic digestion. In this work, the effect of 1,1,2,2-tetrachloroethane (TCE) on the performance of upflow anaerobic sludge bed (UASB) reactors fed with sucrose synthetic wastewater has been studied. According to the results obtained it can be concluded the possibility to use UASB reactors with granular sludge to treat industrial wastewaters with a continuous content of TCE up to a concentration of 130 mg/l or with incidental punctual discharges of high concentration of the toxicant up to 400 mg/l. In all cases in which the activity of the reactor was inhibited a fast recuperation was observed.

Download Full-text

Biogas Production Using Codigestion of Organic Residues with Malt Bagasse

The Journal of Solid Waste Technology and Management ◽

10.5276/jswtm/2021.174 ◽

2021 ◽

Vol 47 (1) ◽

pp. 174-180

Author(s):

Henrique Sousa do Nascimento ◽

Geísa Vieira Vasconcelos Magalhães ◽

José Demontier Vieira de Souza-Filho ◽

Ronaldo Stefanutti ◽

Ari Clecius Alves de Lima ◽

...

Keyword(s):

Anaerobic Digestion ◽

Organic Waste ◽

Biogas Production ◽

Upflow Anaerobic Sludge Blanket ◽

Uasb Reactor ◽

Anaerobic Sludge ◽

Operational Conditions ◽

Different Types ◽

Anaerobic Sludge Blanket ◽

Bagasse Waste

This study evaluated the use of two anaerobic bioreactors in the production of biogas from malt bagasse waste. Bioreactor B1 was loaded with a mixture of 600mL of anaerobic sludge, 300g of organic waste, taken from an upflow anaerobic sludge blanket (UASB) reactor, and 300g of malt bagasse residue. Bioreactor B2 was loaded with a mixture of 600g of organic waste and 600mL of anaerobic sludge taken from an UASB reactor. The anaerobic digestion processes lasted for 10 weeks and the produced methane fraction was measured in 5 occasions. Bioreactor B1 presented low methane production (7.2%) but Bioreactor B2 showed a much more signif- icant percentage, reaching up to 48.3%. The experiments were capable of reproducing largescale operational conditions, enabling increased results in biogas capturing and processing, strengthening sustainability and energy efficiency. The experiment also showed the importance of studying different types of organic waste, seeking optimization of anaerobic digestion pro- cesses.

Download Full-text

Anaerobic digestion of olive oil mill effluents together with swine manure in UASB reactors

Water Science & Technology ◽

10.2166/wst.2002.0334 ◽

2002 ◽

Vol 45 (10) ◽

pp. 213-218 ◽

Cited By ~ 41

Author(s):

I. Angelidaki ◽

B.K. Ahring ◽

H. Deng ◽

J.E. Schmidt

Keyword(s):

Anaerobic Digestion ◽

Olive Oil ◽

Degradation Products ◽

Swine Manure ◽

Degradation Process ◽

Anaerobic Treatment ◽

Upflow Anaerobic Sludge Blanket ◽

Uasb Reactor ◽

Anaerobic Sludge ◽

Uasb Reactors

Combined anaerobic digestion of olive oil mill effluent (OME) with swine manure, was investigated. In batch experiments was shown that for anaerobic degradation of OME alone nitrogen addition was needed. A COD:N ratio in the range of 65:1 to 126:1 was necessary for the optimal degradation process. Furthermore, it was found that methane productions rates during digestion of either swine manure alone or OME alone were much lower than the rates achieved when OME and manure were digested together. Admixing OME with manure at a concentration of 5 to 10% OME resulted in the highest methane production rates. Using upflow anaerobic sludge blanket (UASB) reactors, it was shown that codigestion of OME with swine manure (up to 50% OME) was successful with a COD reduction up to 75%. The process was adapted for degradation of OME with stepwise increase of the OME load to the UASB reactor. The results showed that the high content of ammonia in swine manure, together with content of other nutrients, make it possible to degrade OME without addition of external alkalinity and without addition of external nitrogen source. Anaerobic treatment of OME in UASB reactors resulted in reduction of simple phenolic compounds such as mequinol, phenyl ethyl alcohol and ethyl methyl phenol. After anaerobic treatment the concentration of these compounds was reduced between 75 and 100%. However, the concentration of some degradation products such as methyl phenol and ethyl phenol were detected in significantly higher concentrations after treatment, indicating that the process has to be further optimised to achieve satisfactory removal of all xenobiotic compounds.

Download Full-text