Biogas Production from Anaerobic Treatment of Agro-Industrial Wastewater

Olvera, Jorge Del Real; López-López, Alberto

doi:10.5772/31906

Cited by 11 publications

(7 citation statements)

References 58 publications

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“…The physicochemical composition of a given stream of AB and TV may change from batch to batch, depending mainly on the raw materials used (e.g. maturity of agave), juice extraction process (cooked and uncooked agave), and the prevailing conditions of fermentation and distillation in the case of TV [3,[6][7][8][9]. Despite such influential factors, there are some general features that can be distinguished between AB and TV.…”

Section: Tequila Production Process and Its Main By-products: Agave Bmentioning

confidence: 99%

A Comprehensive Overview of the Potential of Tequila Industry By-Products for Biohydrogen and Biomethane Production: Current Status and Future Perspectives

García‐Depraect¹,

Osuna-Laveaga²,

León-Becerril³

2020

New Advances on Fermentation Processes

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Nowadays, the use of agro-industrial by-products as alternative sustainable resources to generate bioenergy and high-value bioproducts is one of the most important research topics to tackle environmental concerns related to the excessive consumption of fossil-based fuels and rapid urbanization and industrialization. This chapter provides a broad overview of the potential of the main tequila industry by-products, agave bagasse and tequila vinasse, for biohydrogen (bioH 2) and biomethane (bioCH 4) production via dark fermentation and anaerobic digestion, respectively. First, pretreatment or conditioning steps commonly applied to tequila by-product streams before downstream biological processes are highlighted. The operational performance of bioH 2-and bioCH 4-producing reactors is subsequently reviewed, with a focus on reactor configuration and performance, microbial metabolic pathways, and the characterization of microbial communities. Additionally, the development of multi-stage anaerobic digestion processes is comprehensively discussed from a practical point of view. Finally, limitations and potential improvements in the field of bioH 2 and bioCH 4 production are presented.

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Section: Tequila Production Process and Its Main By-products: Agave Bmentioning

confidence: 99%

A Comprehensive Overview of the Potential of Tequila Industry By-Products for Biohydrogen and Biomethane Production: Current Status and Future Perspectives

García‐Depraect¹,

Osuna-Laveaga²,

León-Becerril³

2020

New Advances on Fermentation Processes

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“…This process involves a four-step process that engages four different types of bacterial groups (hydrolysis, acidogenic, acetogenic, and methanogenic). Each of these bacteria have a different physiology and nutritional requirements (Olvera & Lopez, 2012). If all four groups of bacteria are working under the same conditions, there will be an imbalance between the formations of acid and methane that biogas production time will be longer (Jung et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Acidogenesis of Palm Oil Mill Effluent to Produce Biogas: Effect of Hydraulic Retention Time and pH

Trisakti

Manalu

Taslim

et al. 2015

Procedia - Social and Behavioral Sciences

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Acidogenesis of palm oil mill effluent to produce biogas was conducted base on anaerobic digestion process. This process was consisted of four different stages using various types of microorganisms which came from various groups of bacteria. This research studied the effect of hydraulic retention time (HRT) and pH to the change of the organic compounds concentration and solids content of POME to the growth of microorganisms during acidogenesis stage. Initially, the suitable loading up was determined by varying the HRT 6.7; 5.0; and 4.0 days in the continuous stirred tank reactor (CSTR) with mixing rate 50 rpm, pH 6.0 ± 0.2, and room temperature. Next, suitable pH was determined by varying the pH at 5.0; 5.5; and 6.0 with mixing rate 100-110 rpm and temperature 55 o C. Analysis of TS, VS, TSS, VSS, COD, and VFA were conducted in order to study the growth of microorganisms and their abilities in converting organic compound to produce VFA. The highest growth of microorganisms was achieved at HRT 4.0 day with microorganism concentration was 20.62 mg VSS/L and COD reduction was 15.7%. The highest production of total VFA achieved was 5622.72 mg/L at pH 6.0, with the concentration of acetic acid, propionic acid and butyric acid were 2257.34; 975.49; and 2389.90 mg/L, respectively. While degradation VS and COD were 11 and 23%, respectively.

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“…Slaughterhouse wastewater is a complex mixture of proteins, organic compounds and fats. The organic load of 5,000-15,000 mg/L, measured as chemical oxygen demand (COD), includes fats and oils at concentrations in range of 100-300 mg/L and isoelectric point between 3 and 4 [21].…”

Section: Desalination and Water Treatmentmentioning

confidence: 99%

Adsorption of organic pollutants from slaughterhouse wastewater using powder of Moringa oleifera seeds as a natural coagulant

Real-Olvera

Rustrián-Portilla

Houbron

et al. 2016

Desalination and Water Treatment

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To cite this article: Jorge del Real-Olvera, Elena Rustrian-Portilla, Eric Houbron & Francisco J. Landa-Huerta (2015): Adsorption of organic pollutants from slaughterhouse wastewater using powder of Moringa oleifera seeds as a natural coagulant, Desalination and Water Treatment,The seed of Moringa oleifera Lam. (Moringaceae) comes from a tropical plant containing important quantities of edible oils and water-soluble proteins with excellent coagulation properties which can be used in wastewater treatment. These proteins are non-toxic natural organic polymers and biodegradable. The main objective of this work was to use the powder of seeds of M. oleifera Lam. as a natural coagulant for the adsorption of organic pollutants from slaughterhouse wastewater. The effects of adsorption time, initial pH, slaughterhouse wastewater concentration and dosage of seed in powder were evaluated. The results indicated that 180 min is necessary for a high adsorption. The greatest removal efficiency measured as chemical oxygen demand (COD) was 5,614 mg/L (64%) and this was reached using 7 g/L powder of seed, pH 9 and 8,772 mg/L of pollutant in wastewater. This study elucidates that the sorption process follows second-order kinetics and the values of constant are in the range 0.0427 ≤ k 2 (g pollutant organic adsorbed/g of M. oleifera min) ≤ 0.0516, with correlation coefficients above 0.98. The adsorption data were fitted to the Langmuir and Freundlich isotherm equations. The maximum adsorption capacity of 0.523 g COD/g powder suggests a good affinity between the organic pollutants and the powder.

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Biogas Production from Anaerobic Treatment of Agro-Industrial Wastewater

Cited by 11 publications

References 58 publications

A Comprehensive Overview of the Potential of Tequila Industry By-Products for Biohydrogen and Biomethane Production: Current Status and Future Perspectives

A Comprehensive Overview of the Potential of Tequila Industry By-Products for Biohydrogen and Biomethane Production: Current Status and Future Perspectives

Acidogenesis of Palm Oil Mill Effluent to Produce Biogas: Effect of Hydraulic Retention Time and pH

Adsorption of organic pollutants from slaughterhouse wastewater using powder of Moringa oleifera seeds as a natural coagulant

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