Heat Recovery Technologies from Aerobic Bio-degradation: From Theoretical Finding to Modeling Results

Sokolovs, Alvis; Grigāns, Linards; Dzelzkaleja, Laura; Majore, Ginta; Bikulčienė, Liepa

doi:10.1016/j.procs.2015.12.371

Cited by 8 publications

(4 citation statements)

References 12 publications

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“…Based on the hypothetical organic matter of the C5H7NO2 cell representing activated sludge [5,6], the process can be presented as the following stoichiometric reactions:…”

Section: The Process and Its Technology Solutionmentioning

confidence: 99%

Autothermal Thermophilic Aerobic Digestion of Municipal Sewage Sludge in Poland. Review

Bartkowska

Biedka

Tałałaj

2020

The 9th Innovations-Sustainability-Modernity-Openness Conference (ISMO’20)

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This paper presents the process of autothermal thermophilic aerobic digestion (ATAD). The installations used in municipal sewage treatment plants in Poland were reviewed. The adopted solutions for sludge management and parameters of operating installations were presented. Attention was also drawn to the energy consumption of the process. On the basis of research carried out in the years 2003–2019 in the plants in question, the characteristics of sludge after the ATAD process were presented. The parameters that determine the usefulness of the sludge as an organic fertilizer are indicated above all.

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“…Based on the hypothetical organic matter of the C5H7NO2 cell representing activated sludge [5,6], the process can be presented as the following stoichiometric reactions:…”

Section: The Process and Its Technology Solutionmentioning

confidence: 99%

Autothermal Thermophilic Aerobic Digestion of Municipal Sewage Sludge in Poland. Review

Bartkowska

Biedka

Tałałaj

2020

The 9th Innovations-Sustainability-Modernity-Openness Conference (ISMO’20)

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“…These bacteria are also characterized by high resistance to the action of metabolic products and the ability to adapt to small amounts of oxygen. Very rapid increase in the number of thermophilic bacteria, without the need to inoculate sludge with the proper microflora, fast substrate bio-degradation, low sensitivity to temperature fluctuations and resistance to periodic interruptions in system aeration, guarantee, even in emergency situations, an extremely stable and flexible biological system in a thermophilic digestion environment (Rojas et al 2010, Sokolovs et al 2015.…”

Section: Process Descriptionmentioning

confidence: 99%

Utilization of Sewage Sludge after the Process of Autothermal Digestion

Bartkowska¹,

Dzienis²

2019

J. Ecol. Eng.

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Sediments constitute one of the wastes that are generated in sewage treatment plants. The methods of their final management depend on the sewage sludge system management. One of the employed methods is Autothermal Thermophilic Aerobic Digestion (ATAD). The article presents the process of autothermal oxygen digestion of sewage sludge as a method enabling to obtain biomass, which can be used in the natural environment. In addition to the description of the theoretical basis of the discussed process, the quality of the formed sewage sludge is presented. The amount of sludge and the manner of its final utilisation were also analyzed. The results were presented on the basis of waste records kept in each of the analyzed sewage treatment plants. Sludge transfer cards in 2013-2018 were also analyzed in the sewage treatment plants where sludge undergoes the ATAD process.

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“…The environment with the highest temperatures is created in the thermophilic phase that occurs immediately after initial heat-up provided that suitable compost mixture [1], its physical and chemical parameters, composting principles [2] as well as proper composting facility construction [3] and management [4] were respected. Compost Heat Recovery Systems (CHRSs) [5] are being reviewed [6], investigated and modeled [7] as well as developed in order to utilize the heat produced by bacterial metabolism. This biologically produced heat can be considered as low-temperature heat source [8] with the potential of becoming another method for sustainable energy [9] production from biomass [10] and a novel waste management strategy [11].…”

Section: Introductionmentioning

confidence: 99%

Condenser-Type Heat Exchanger for Compost Heat Recovery Systems

2019

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The majority of heat released during composting is contained in latent form of water vapour. To improve the rate of heat recovery, a simple heat exchanger based on condensation of compost vapours was designed. A prototype of this condenser-type heat exchanger was built and tested as a part of pilot-scale compost heat recovery system. Passively aerated static pile (modified Jean Pain mound) with enhanced aeration using vertical channels was chosen for this composting experiment. Insulation of the compost mound and adjacent hoop house further improved the efficiency of the heat recovery and utilization.

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Heat Recovery Technologies from Aerobic Bio-degradation: From Theoretical Finding to Modeling Results

Cited by 8 publications

References 12 publications

Autothermal Thermophilic Aerobic Digestion of Municipal Sewage Sludge in Poland. Review

Autothermal Thermophilic Aerobic Digestion of Municipal Sewage Sludge in Poland. Review

Utilization of Sewage Sludge after the Process of Autothermal Digestion

Condenser-Type Heat Exchanger for Compost Heat Recovery Systems

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