Stable performance of anaerobic digestion in the presence of a high concentration of propionic acid

Pullammanappallil, Pratap; Chynoweth, D.P.; Lyberatos, Gérasimos; Svoronos, Spyros A.

doi:10.1016/s0960-8524(00)00187-5

Cited by 144 publications

(63 citation statements)

References 19 publications

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“…This probably led to low degradation of HPr that increased its accumulation further lowering reactor pH and hence inhibiting the methanogesis process. These results are consistent with [20] and [21] who found that accumulation of VFAs especially HPr led to failure in AD systems.…”

Section: Volatile Solids Removalsupporting

confidence: 93%

Optimization of Biogas Production in Dry Anaerobic Digestion of Swine Manure by the Use of Alkalinity Index to Monitor a Prototype Cylindrical Digester

Andole¹,

Lei²,

Zhang³

et al. 2017

RSE

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Anaerobic digestion (AD) is one of the best alternative sustainable technologies for energy production and recovery from organic solid wastes. Up to now dry AD has been commercialized in the treatment of municipal solid wastes. Little information could be found on the practical application of dry AD to manure wastes or waste activated sludge. This study aimed at testing the feasibility of using alkalinity to manage dry AD system for swine manure treatment and clarify its effect on the stability and efficiency of the newly-developed prototype cylindrical digester system. A prototype cylindrical digester with a diameter of 40 mm and a volume of 1.3 liters was designed and fabricated. It was operated under mesophilic conditions (38°C). The alkalinity of manure was increased by 3000 g/L (R 1 ) and 6000 g/L (R 2 ) by adding sodium bicarbonate with the raw swine manure as the control (R 0 ). Results showed that R 1 and R 2 maintained a relatively higher level of alkalinity during the whole operation compared to the control (R 0 ). Only one peak appeared in biogas production for the control reactor (R 0 ) which almost ceased on day 12, whereas R 1 and R 2 exhibited two biogas peaks. The 30 days' biogas yield for R 2 was 276.6 ml/g-VS added while R 1 was 204.8 ml/g-VS added which corresponds to an increase by 2.7-and 1.7-fold respectively as compared to the control (R 0 ). 2.2-and 4.1-fold increase in methane production was achieved in R 1 and R 2 respectively as compared to R 0 . This difference is most probably attributable to the high alkalinity in R 1 and R 2 that stabilized the digestion process and minimized the influence of pH variations on methanogenesis.

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Section: Volatile Solids Removalsupporting

confidence: 93%

Optimization of Biogas Production in Dry Anaerobic Digestion of Swine Manure by the Use of Alkalinity Index to Monitor a Prototype Cylindrical Digester

Andole¹,

Lei²,

Zhang³

et al. 2017

RSE

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“…However, Wang et al [38] reported that high concentrations of propionic acid do not necessarily indicate an imbalance in the AD process, and are not inhibitory even if added directly or formed as an intermediary. This agrees with the stable performance of reactors when propionic acid concentrations are high, such as during phenol digestion, as reported by Pullammanappallil et al [39]. In their experiment, the metabolism of phenol led to an elevated propionic acid content (2750 mg L −1 ).…”

Section: Analysis Of Volatile Fatty Acidssupporting

confidence: 90%

Mitigation of Volatile Fatty Acid Build-Up by the Use of Soft Carbon Felt Electrodes: Evaluation of Anaerobic Digestion in Acidic Conditions

et al. 2018

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Anaerobic digestion and bioelectrochemical systems have great potential to recover energy from waste streams and help overcome common hurdles associated with this process, as integrated technologies. In this study, the benefit of integrating an electrogen-enriched bioanode in a batch anaerobic digester was explored under ambient temperature conditions associated with organic overloading and reactor acidity. An increase in CH 4 production was observed in the electrode-containing reactors (0.56 L CH 4 kg VS −1 h −1 ) in comparison with the conventional anaerobic digester (0.14 L CH 4 kg VS −1 h −1 ) during the initial stages of operation. In addition, the mere presence of electrodes operating in open circuit mode resulted in a delay in volatile fatty acid (VFA) build-up. This seems to be associated with the enhancement in VFA consumption due to biomass proliferation on the electrode surface, rather than on electrochemical activity.

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“…Concentrations of propionic acid >3000 mg L -1 have been previously shown to inhibit methanogenesis [5]; however, more recent studies by Pullammanappallil et al [16] revealed that propionic acid was an effect rather than cause of inhibition of anaerobic processes -as also confi rmed by the present research. Hajarnis and Ranade [9] examined the infl uence of propionic acid toxicity on methanogens and found that at propionic acid concentration of 5000 mg L -1 and neutral pH, the CH 4 production was inhibited to 22-38% of control values; and a pH reduction drastically increased the inhibition.…”

Section: Stability Of Digestion Performancesupporting

confidence: 80%

“…Hajarnis and Ranade [9] examined the infl uence of propionic acid toxicity on methanogens and found that at propionic acid concentration of 5000 mg L -1 and neutral pH, the CH 4 production was inhibited to 22-38% of control values; and a pH reduction drastically increased the inhibition. Pullammanappallil et al [16] showed that propionic acid concentration up to 2750 mg L -1 did not adversely affect CH 4 production even at pH <6.5. McCarty and Brousseau [13] reported that propionate concentration of up to 8000 mg L -1 was tolerated in anaerobic digesters.…”

Section: Stability Of Digestion Performancementioning

confidence: 99%

Production of Biogas Using Maize Silage Supplemented with Residual Glycerine from Biodiesel Manufacturing

Pokój¹,

Gusiatin²,

Bułkowska³

et al. 2014

Archives of Environmental Protection

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Abstract:The aim of this study was to investigate the infl uence of residual glycerine (5 and 10% w/w) from the biodiesel industry, used as a co-substrate, on biogas production from maize silage. The experiments were conducted in a laboratory-scale, single-stage anaerobic digester at 39ºC and hydraulic retention time (HRT) of 60 d. Addition of 5% residual glycerine caused organic load rate (OLR) to increase to 1.82 compared with 1.31 g organic dry matter (ODM) L respectively. This suggested that 10% glycerine content inhibited methanogenic bacteria and organics conversion into biogas. As a result, there was accumulation of propionic and valeric acids throughout the experiment.

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Stable performance of anaerobic digestion in the presence of a high concentration of propionic acid

Cited by 144 publications

References 19 publications

Optimization of Biogas Production in Dry Anaerobic Digestion of Swine Manure by the Use of Alkalinity Index to Monitor a Prototype Cylindrical Digester

Optimization of Biogas Production in Dry Anaerobic Digestion of Swine Manure by the Use of Alkalinity Index to Monitor a Prototype Cylindrical Digester

Mitigation of Volatile Fatty Acid Build-Up by the Use of Soft Carbon Felt Electrodes: Evaluation of Anaerobic Digestion in Acidic Conditions

Production of Biogas Using Maize Silage Supplemented with Residual Glycerine from Biodiesel Manufacturing

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