Anaerobic membrane bioreactor-based treatment of poultry slaughterhouse wastewater: Microbial community adaptation and antibiotic resistance gene profiles

Ramadan, Lama; Deeb, Reem; Sawaya, Christelle BouNehme; Khoury, Charbel El; Wazne, Mahmoud; Harb, Moustapha

doi:10.1016/j.bej.2023.108847

Cited by 12 publications

(2 citation statements)

References 70 publications

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“…Their composition includes fats, proteins, and fibers from the slaughtering process. These residues contain contaminants, primarily blood, stomach, and intestinal mucus, along with high levels of organic products, microorganisms, and cleaning agents [5,6].…”

Section: Introductionmentioning

confidence: 99%

Enzymatic Pretreatment of Slaughterhouse Wastewater: Application of Whole Lipolytic Cells of Rhizopus oryzae Produced from Residual Vegetable Oil

Reis,

Bento,

Carvalho

et al. 2024

Processes

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This study assessed the application of whole lipolytic cells in the pretreatment of slaughterhouse wastewater to reduce its lipid content. The fungal biomass of Rhizopus oryzae was evaluated in the hydrolysis of slaughterhouse wastewater containing high lipid concentrations, focusing on the biomass’s concentration and the effect of using an emulsifier and surfactant. The use of the whole-cells lipase of Rhizopus oryzae grown in a residual vegetable oil medium proved effective in the hydrolysis of slaughterhouse wastewater, generating concentrations of free fatty acids (FFA) ranging from 40.36 to 90.14 mM. The action of lipase in the hydrolysis of slaughterhouse residues indicated its effectiveness in pretreating lipid-rich liquid residues, potentially boosting the microbiota of this anaerobic treatment. The results showed that lipase activity without surfactant exhibited a similar performance to that of Triton X-100 in the hydrolysis of liquid residues. However, the combination of lipase and surfactant could represent a promising strategy to optimize free fatty acid production from slaughterhouse residues, strengthening anaerobic treatment processes and potentially enhancing the overall efficiency of waste management systems.

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Section: Introductionmentioning

confidence: 99%

Enzymatic Pretreatment of Slaughterhouse Wastewater: Application of Whole Lipolytic Cells of Rhizopus oryzae Produced from Residual Vegetable Oil

Reis,

Bento,

Carvalho

et al. 2024

Processes

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“…These characteristics include pH, temperature, dissolved solids, and metals and can be affected by pumping, stagnation, exposure to light, and the combining of streams. The growth of individual microorganisms in wastewater is influenced by all these conditions and can be further influenced/varied directly through disinfection [2] or biological treatment [3].…”

Section: Introductionmentioning

confidence: 99%

Diversity of Microbial Communities in Trade Wastes—Implications for Treatments and Operations

Elliott,

Krohn,

Ball

2024

Applied Microbiology

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Industrial wastewaters display a complex and diverse range of physicochemical properties that are measured, studied, and treated by businesses and water service providers. Less frequently measured are the microbial communities in these wastes, despite possible implications for health, equipment maintenance, and the environment. This study aimed to assess the microbial communities of eighteen raw and discharge-ready wastewaters across eleven industrial sites to compare the microbial compositions of these wastewaters across different industry sectors, on-site treatment levels, and other wastewater components. The potential for variance in the biomethane yield, depending on microbial communities, was also measured. Using targeted sequencing, a unique taxonomy was identified, including genera linked to animals (Acetitomaculum, Lactobacillus, NK4A214, Prevotella, and Shuttleworthia), cooling water (Bosea, Legionella, Methyloversatilis, and Reyranella), and extreme conditions (Alkalibacillus, Geobacillus, Halorubrum, and Pyrobaculum). However, the compositions of the microbial communities were not found to be directly correlated to industry sector or on-site treatment levels, nor were they found to have a direct effect on the biomethane potential. However, the presence of certain individual taxa is linked to the methane yield and treatment status and may be explained in the context of physicochemical properties while serving as potential markers for identifying, improving, or developing on-site processes.

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State‐of‐the‐Art Review of Biomass Gasification: Raw to Energy Generation

Taqvi,

Kazmi,

Naqvi

et al. 2024

ChemBioEng Reviews

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Despite the increasing global need for sustainable energy, biomass gasification is becoming a highly promising method for transforming raw biomass into usable energy. The present review article analyzes the essential aspects of biomass‐based energy production, starting with an assessment of existing energy needs and the crucial contribution that biomass can make in fulfilling these demands. The research investigates recent advancements in several biomass gasification methods, explaining their mechanics and discussing the related difficulties. The research conducts a thorough evaluation of the efficiency, yield, and environmental consequences of biomass gasification, aiming to determine the feasibility of the technique. In addition, the study rigorously assesses the techno‐economic factors of energy generation from biomass, providing valuable information on the economic viability and scalability of various biomass gasification techniques. The present study is focused on providing a comprehensive understanding of biomass gasification by analyzing current improvements and conducting a techno‐economic comparison to make well‐informed decisions for a sustainable energy future.

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Anaerobic membrane bioreactor-based treatment of poultry slaughterhouse wastewater: Microbial community adaptation and antibiotic resistance gene profiles

Cited by 12 publications

References 70 publications

Enzymatic Pretreatment of Slaughterhouse Wastewater: Application of Whole Lipolytic Cells of Rhizopus oryzae Produced from Residual Vegetable Oil

Enzymatic Pretreatment of Slaughterhouse Wastewater: Application of Whole Lipolytic Cells of Rhizopus oryzae Produced from Residual Vegetable Oil

Diversity of Microbial Communities in Trade Wastes—Implications for Treatments and Operations

State‐of‐the‐Art Review of Biomass Gasification: Raw to Energy Generation

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