Thermo-chemical pre-treatment to solubilize and improve anaerobic biodegradability of press mud

González, Lisbet Mailin López; Vervaeren, Han; Reyes, Ileana Pereda; Dumoulin, Ann; Romero, Osvaldo Romero; Dewulf, Jo

doi:10.1016/j.biortech.2012.12.167

Cited by 45 publications

(13 citation statements)

References 26 publications

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“…Another option could be the utilization of a pre-treatment process on filter cake to increase its specific methane production, since such an alternative has already been tested before. Gonzalez et al [ 36 , 37 ] evaluated two different pre-treatment methods to increase the methane yields of filter cake (named as press mud) under mesophilic conditions (±37 °C). The liquid hot water pre-treatment method was able to increase the methane yield by 63% after 20 min of exposure at 150 °C, while the thermo-alkaline pre-treatment method was able to increase the methane yield by 72% by adding 10 g Ca(OH) 2 per 100 g·TS −1 for 1 h. However, questions regarding the application of such methods at the large-scale still remain unclear, especially whether these types of pre-treatments would be able to provide net profit gain to the biogas system.…”

Section: Resultsmentioning

confidence: 99%

Biogas Production from Sugarcane Waste: Assessment on Kinetic Challenges for Process Designing

Janke

Leite

Nikolausz

et al. 2015

IJMS

159

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Biogas production from sugarcane waste has large potential for energy generation, however, to enable the optimization of the anaerobic digestion (AD) process each substrate characteristic should be carefully evaluated. In this study, the kinetic challenges for biogas production from different types of sugarcane waste were assessed. Samples of vinasse, filter cake, bagasse, and straw were analyzed in terms of total and volatile solids, chemical oxygen demand, macronutrients, trace elements, and nutritional value. Biochemical methane potential assays were performed to evaluate the energy potential of the substrates according to different types of sugarcane plants. Methane yields varied considerably (5–181 Nm3·tonFM−1), mainly due to the different substrate characteristics and sugar and/or ethanol production processes. Therefore, for the optimization of AD on a large-scale, continuous stirred-tank reactor with long hydraulic retention times (>35 days) should be used for biogas production from bagasse and straw, coupled with pre-treatment process to enhance the degradation of the fibrous carbohydrates. Biomass immobilization systems are recommended in case vinasse is used as substrate, due to its low solid content, while filter cake could complement the biogas production from vinasse during the sugarcane offseason, providing a higher utilization of the biogas system during the entire year.

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Section: Resultsmentioning

confidence: 99%

Biogas Production from Sugarcane Waste: Assessment on Kinetic Challenges for Process Designing

Janke

Leite

Nikolausz

et al. 2015

IJMS

159

View full text Add to dashboard Cite

show abstract

“…The solid fraction and inoculum were put into air-tight batch reactors (250 ml) with a water-displacement system coupled to the headspace (Schroyen et al, 2014). The displaced volume was used to calculate the volume of biogas in norm liter under standard temperature and pressure, respectively 273.15 K and 100 kPa (López González et al, 2013). Compositional analysis of the biogas was done with an Agilent 6890 Series gas chromatograph as described in Schroyen et al (2014).…”

Section: Bmp-assaymentioning

confidence: 99%

Effect of enzymatic pretreatment of various lignocellulosic substrates on production of phenolic compounds and biomethane potential

Schroyen

Vervaeren

Vandepitte

et al. 2015

Bioresource Technology

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“…The availability of filter mud is about 3–7% of total crushed cane [ 11 ], while the chemical composition depends on many factors including the cane variety, soil condition, nutrients applied in the field, process of clarification adopted, and other environmental factors [ 1 ]. Moreover, in some sugar industries, filter mud is disposed as garbage, or used as fertilizer, whether as raw material or by converting it into compost [ 12 ]. The feature behavior of filter mud indicates that it is highly suitable for energy production [ 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

Alkaline Pretreatment of Sugarcane Bagasse and Filter Mud Codigested to Improve Biomethane Production

Talha

Ding

Mehryar

et al. 2016

BioMed Research International

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To enhance the codigestion of degradation and improve biomethane production potential, sugarcane bagasse and filter mud were pretreated by sodium hydroxide NaOH 1 N at 100°C for 15, 30, and 45 minutes, respectively. Biomethane generation from 1-liter batch reactor was studied at mesophilic temperature (37 ± 1)°C, solid concentrations of 6%, and five levels of mixing proportion with and without pretreatment. The results demonstrate that codigestion of filter mud with bagasse produces more biomethane than fermentation of filter mud as single substrate; even codigested substrate composition presented a better balance of nutrients (C/N ratio of 24.70) when codigestion ratio between filter mud and bagasse was 25 : 75 in comparison to filter mud as single substrate (C/N ratio 9.68). All the pretreatments tested led to solubilization of the organic matter, with a maximum lignin reduction of 86.27% and cumulative yield of biomethane (195.8 mL·gVS−1, digestion of pretreated bagasse as single substrate) obtained after 45 minutes of cooking by NaOH 1 N at 100°C. Under this pretreatment condition, significant increase in cumulative methane yield was observed (126.2 mL·gVS−1) at codigestion ratio of 25 : 75 between filter mud and bagasse by increase of 81.20% from untreated composition.

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Thermo-chemical pre-treatment to solubilize and improve anaerobic biodegradability of press mud

Cited by 45 publications

References 26 publications

Biogas Production from Sugarcane Waste: Assessment on Kinetic Challenges for Process Designing

Biogas Production from Sugarcane Waste: Assessment on Kinetic Challenges for Process Designing

Effect of enzymatic pretreatment of various lignocellulosic substrates on production of phenolic compounds and biomethane potential

Alkaline Pretreatment of Sugarcane Bagasse and Filter Mud Codigested to Improve Biomethane Production

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