The Biomethanization Gas Purification of Using Chlorophyll-Synthesizing Microalgae

Dyachok, Vasil; Venher, Liubov; Huhlych, Serhiy

doi:10.12911/22998993/151990

Cited by 3 publications

(3 citation statements)

References 4 publications

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“…This way of managing the gas guarantees the optimal use of the chemical energy contained in LFG, the products of which are electricity and heat, produced in a combined system [23,24]. Since raw LFG sourced directly from the landfill contains harmful impurities, including hydrogen sulfide, ammonia and silicon compounds, it is required to undergo a purification process as a target gas fuel [25,26]. The LFG cleaning techniques used throughout the world are mainly wet and dry technologies, which effectively reduce contaminants and allow gas engines to operate properly.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Efficiency of Landfill Gas Treatment for Power Generation in a Cogeneration System in Terms of the European Green Deal

Ciuła,

Generowicz,

Gronba-Chyła

et al. 2024

Sustainability

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Climate change and environmental degradation pose a threat to Europe and the world. The mechanism that will address these challenges is the European Green Deal, which envisions transforming the EU into a modern, resourceful, economical and competitive economy, aiming for zero greenhouse gas emissions. Landfill gas generated in a landfill waste deposit poses a threat to the environment and people. In this aspect, its capture, treatment and safe neutralization or use for energy purposes are important. Treatment of landfill gas, which is the fuel for gas engines in cogeneration units, is crucial for their proper operation and the quantity and quality of electricity and heat generated. The purpose of this study was to perform research to determine the hydrogen sulfide content of landfill gas and the actual efficiency of hydrogen sulfide removal from the gas using activated carbon. The tests performed constitute the basis for the reliable operation of gas engines in cogeneration installations and are dedicated mainly to the operators of these installations. Accordingly, three measurement campaigns were carried out, each with 42 measurements, the first for the “raw” gas obtained directly from the landfill, the second for the gas before entering the carbon filter and the third after its treatment. In addition, surface analysis was performed, and the elemental composition of the “fresh” molded activated carbon constituting the filter material was determined using a scanning electron microscope with an EDS system. The results showed a high elemental content of carbon in the test sample at 92.78%, while the efficiency of hydrogen sulfide removal from landfill gas by activated carbon, calculated from the measurements, was 97.05%. The obtained test results confirmed the validity of using impregnated activated carbon to remove hydrogen sulfide from landfill gas and its high adsorption efficiency, which can consequently result in reliable operation of the gas engine in the cogeneration unit and ultimately fit in with the objectives of the European Green Deal. The research results are an incentive for operators of cogeneration installations to systematically examine the quality of landfill gas and the efficiency of biogas purification devices.

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Section: Introductionmentioning

confidence: 99%

Analysis of the Efficiency of Landfill Gas Treatment for Power Generation in a Cogeneration System in Terms of the European Green Deal

Ciuła,

Generowicz,

Gronba-Chyła

et al. 2024

Sustainability

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“…Where the operator of the landfill has no influence on the methanogenic process in the waste bed, they can only take care of the correct compression of the waste and the moisture content, e.g., by an irrigation system in the form of a return of eluate water to the landfill. Gas extracted from the waste bed from gas wells (vertical and horizontal) using pipelines should be subject to a treatment process of physical and chemical impurities before its energetic use in a CHP plant [20]. The quality testing of LFG is performed as a basis for the implementation of a proper purification system, and this concerns the removal or reduction of values of hydrogen sulphide, silicon and siloxanes [21,22].…”

Section: Introductionmentioning

confidence: 99%

Technical and Economic Aspects of Environmentally Sustainable Investment in Terms of the EU Taxonomy

Ciuła,

Generowicz,

Oleksy-Gębczyk

et al. 2024

Energies

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Removing impurities that occur in landfill gas, from sulphur and silicon compounds, is crucial for the energetic use of biogas in a cogeneration unit for energy purposes. The aim of this study was to analyse the shaped activated carbon, examining its structure and elemental composition as part of the biogas purification. The qualitative study of the purified landfill gas performed in this study showed a significant overshoot of hydrogen sulphide at 304.1 ppm with respect to the gas engine manufacturer’s requirements, while the calculated hydrogen sulphide reduction efficiency was 24.58%. Examination of the surface of the spent carbon and its pores with a scanning microscope revealed a high level of clotting by sulphur compounds, which prevents proper reduction of this compound and reduces the efficiency of the treatment plant. Replacement of the activated carbon bed with a new one showed a hydrogen sulphide value of 7.5 ppm in the purified gas and a calculated reduction efficiency of 97.9%. The results of the study confirmed that continuous monitoring of the quality of the purified gas is necessary to control the adsorption properties of the activated carbon and can be used for the operation of gas engines in cogeneration units. The landfill gas treatment method described in this paper constitutes an environmentally sustainable project within the meaning of the EU regulation on the establishment of a framework to promote and facilitate this type of investment in terms of its financing and operation. The topic of the work fits into three key areas of broad research and implementation activities. The first, technological, is the transition to a low-carbon, sustainable and resource-efficient closed-loop economy; the second, environmental, pollution prevention and control. The third area is economics and finance in terms of making financial products available designed to reduce climate change and reporting on these activities.

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“…The very construction process of the installation should be characterized by careful selection of applied building materials and the segregation of generated waste mainly in terms of recycling and optimal use of energy and water in this process. Due to the fact that this type of installations are most often located outdoor and they are set on foundations, particular attention should be paid to the stability of the ground, including its drainage [Williams at al., 2014;Dyachok et al, 2022].…”

Section: Introductionmentioning

confidence: 99%

Pollution Indicator of a Megawatt Hour Produced in Cogeneration – The Efficiency of Biogas Purification Process as an Energy Source for Wastewater Treatment Plants

Ciuła¹,

Kowalski²,

Wiewiórska³

2023

J. Ecol. Eng.

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The sewage treatment plant, as a producer of renewable energy, should make every effort to ensure that the biogas used as a fuel meets the quality requirements, including those of the manufacturers of cogeneration units. Such measures necessitate the application of a conditioning process of biogas in order to remove harmful compounds, so that its parameters ensure failure-free operation of engines. The aim of the research was to evaluate the effectiveness of biogas treatment in the A-type installation using the "wet biogas treatment" technology, and in the B-type installation, which is a comprehensive solution comprising sulfur removal as a result of a simultaneous regeneration of the bed with oxygen, removal of siloxanes on activated carbon, cooling and heating of biogas along with its filtration. The analysis of the results of biogas testing for these two installations demonstrated fundamental qualitative differences for the benefit of the installation B, in which the biogas was characterized by a much lower content, mainly of sulfur, hydrogen sulfide, siloxanes and humidity. The introduced pollution indicator of a megawatt hour produced in cogeneration one has confirmed much higher pollution load from the A-type installation. The hybrid solution applied in the work with simultaneous regeneration of the bed has confirmed the efficiency of biogas conditioning. Such a solution contributes to a safe and reliable operation of the cogeneration system for generating energy from a renewable source, which in turn contributes to the optimization of energy.

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The Biomethanization Gas Purification of Using Chlorophyll-Synthesizing Microalgae

Cited by 3 publications

References 4 publications

Analysis of the Efficiency of Landfill Gas Treatment for Power Generation in a Cogeneration System in Terms of the European Green Deal

Analysis of the Efficiency of Landfill Gas Treatment for Power Generation in a Cogeneration System in Terms of the European Green Deal

Technical and Economic Aspects of Environmentally Sustainable Investment in Terms of the EU Taxonomy

Pollution Indicator of a Megawatt Hour Produced in Cogeneration – The Efficiency of Biogas Purification Process as an Energy Source for Wastewater Treatment Plants

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