Biodegradation of Soap Stock: As an Alternative Renewable Energy Resource and Reduce Environmental Pollution

Shah, Kamlesh Kumar R.; Patel, Gayatriben B.

doi:10.1007/978-981-16-4445-0_27

Cited by 1 publication

(3 citation statements)

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“…For example, methanogenic fermentation of organic compounds can provide not only methane production but also environmental protection. Thus, the development and optimization of the fermentation processes is a promising approach to support the economy with alternative energy [1].…”

Section: Introductionmentioning

confidence: 99%

“…Today, natural and synthetic organic compounds predominate over inorganic ones in landfills and industrial wastewater. Accumulated as a result of human activities and imperfect technological processes in chemical enterprises, as well as the absence or ineffectiveness of their detoxification, persistent organic compounds possess hazards to the environment [1,2]. Since they are degraded very slowly, synthetic organic compounds persist in the environment for a long time, disrupting normal functioning flora and fauna.…”

Section: Introductionmentioning

confidence: 99%

“…A soapstock is a striking example of an organic contaminant. Soapstock from alkali refining is a rich source of fatty acids, but it also presents a handling, storage, and disposal problem [1]. Substances containing fatty acids are widely used in everyday life as antimicrobial agents, preservatives, stabilizers, etc.…”

Section: Introductionmentioning

confidence: 99%

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Biodegradation of Synthetic Organic Compounds by Methanogenic Microbiome as an Alternative Approach for Wastewater Purification and Energy Production

et al. 2022

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The use of fossil fuels (methane, oil, etc.) is undergoing an unprecedented crisis now. There is the urgent need to search for alternative energy sources. A wide range of degraded organic materials can be effectively used to provide energy together with environmental protection. Soapstock is a hazardous waste containing a high concentration of toxic organic compounds of man-made origin (fatty acids, surfactants, dyes, etc.). To prevent environmental contamination such substances require an effective treatment approach. The goal of the study was to isolate the adapted-to-fatty-acids methanogenic microbiome and investigate the patterns of sodium acetate and soapstock degradation with simultaneous biomethane synthesis. The effectiveness of the degradation of sodium acetate and soapstock by non-adapted and adapted microbiomes was evaluated by decreasing the concentration of dissolved organic compounds. The effectiveness of the fermentation process was determined by the biogas (mixture of CH4 and CO2) yield. The most effective degradation occurred in the variant with sodium acetate and adapted methanogens and amounted to 77.9%. In other variants, the patterns and the efficiency of purification were similar ranging from 60.6 to 68.0%. The biomethane was mostly synthesized by adapted methanogens on the soapstock and sodium acetate as substrates. Thus, the CH4 yield was 368.4 L/kg of dissolved organic compounds or 127.5 L/kg of soapstock. The results of this study demonstrated the potential of methanogenic microorganisms in the biodegradation of soapstock with simultaneous biogas synthesis. The results can serve as a basis to reduce the reliance on fossil fuels by generating biomethane via the fermentation of toxic organics.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%