Electron beam technology for biogas and biofertilizer generation at municipal resource recovery facilities

Chmielewski, A.G.; Sudlitz, Marcin; Han, Bumsoo; Pillai, Suresh D.

doi:10.2478/nuka-2021-0031

Cited by 5 publications

(4 citation statements)

References 14 publications

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“…tests [57]. Absorbed dose underpins electron beam processing, which is then followed by chemical processes in which water radiolysis products are crucial [58]. The amount of biogas produced in 11 to 14 days was similar to the amount generated over 21 days for untreated samples (Figure 5).…”

Section: Eb Irradiation As An Alternative To Other Disintegration Met...mentioning

confidence: 80%

“…The ILU-6 electron accelerator, which is a single-cavity accelerator with electrons of energy 2 MeV, and the Elektronika model 10/10 electron accelerator, which is a linear accelerator with electrons of energy 10 MeV, were used for the EB tests [57]. Absorbed dose underpins electron beam processing, which is then followed by chemical processes in which water radiolysis products are crucial [58]. The amount of biogas produced in 11 to 14 days was similar to the amount generated over 21 days for untreated samples (Figure 5).…”

Section: Eb Irradiation As An Alternative To Other Disintegration Met...mentioning

confidence: 99%

“…Sludge and effluent from municipal wastewater streams, however, must be sufficiently treated to remove the possibility of microbial pathogens. Electron beam technology has been shown to be effective in enhancing methane (biogas) production and sludge hygienization [58]. It was also shown that biogas-powered cogeneration can produce energy in different forms.…”

Section: Sludge Hygienization By Irradiationmentioning

confidence: 99%

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Advanced Technology for Energy, Plant Nutrients and Water Recovery at Wastewater Treatment Plants

Chmielewski,

Sudlitz,

Żubrowska-Sudoł

2024

Energies

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In present times, with increasing emphasis on circular economies, municipal wastewater treatment plants (WWTPs) are considered resource recovery facilities. The targeted resources are water, biogas, and sludge, organic residuals containing nutrients and elements needed by plants (nitrogen and phosphorus). Sludge is a byproduct that constitutes the largest volume of all other byproducts obtained in wastewater treatment plants. Its processing and disposal are challenging for environmental engineers because of its complexity. Thus, quick development and implementation in industrial practice of sludge valorization and utilization technologies is required, where high nutrient content must be taken into account. Also, the occurrence of a variety of pathogens in sewage sludge is a matter of concern, even in the case of developed countries. The use of untreated sludge or wastewater in agricultural activities poses a serious risk of bacterial and parasitic infection in human beings. To overcome such issues, the application of ionizing radiation processing, especially electron beam (EB), can be considered a promising method. Its effectiveness in pathogen removal has been proven by researchers. Water radiolysis products created during irradiation of water are highly reactive and cause some effects such as DNA damage, OH • radical production, etc. Additionally, ionizing radiation technologies in sewage sludge treatment enhance the efficiency of the methane fermentation process. Depending on specific needs, different types of ionizing radiation sources can be discussed. Based on the review information and our research results, the basic engineering parameters of hybrid installation have been presented as the conclusion of the report. In this technical solution, a notably effective additional step would be the use of EB irradiation, combined with conventional wastewater treatment, to achieve efficient removal of pollutants.

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Section: Eb Irradiation As An Alternative To Other Disintegration Met...mentioning

confidence: 80%

Section: Eb Irradiation As An Alternative To Other Disintegration Met...mentioning

confidence: 99%

Section: Sludge Hygienization By Irradiationmentioning

confidence: 99%

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Advanced Technology for Energy, Plant Nutrients and Water Recovery at Wastewater Treatment Plants

Chmielewski,

Sudlitz,

Żubrowska-Sudoł

2024

Energies

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“…Figure 1 shows a number of methods used to prepare raw materials. Innovative pretreatment technologies are based on extreme and non-classical processes, such as ultrasound [6], gamma rays [7], electron beam irradiation [8], pulsed electric field [9], high hydrostatic pressure [10], and high-pressure homogenization [11].…”

Section: Introductionmentioning

confidence: 99%

Cavitation Reactor for Pretreatment of Liquid Agricultural Waste

et al. 2023

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One of the most well-known methods of intensifying the process of anaerobic digestion is the pretreatment of raw materials. For the first time, the use of a jet-driven Helmholtz oscillator for biomass pretreatment is proposed. The design of the device is optimal for creating hydraulic cavitation; however, in this case, acoustic oscillations are generated in the system and resonance occurs. In this study, the optimal design of this device was determined for the subsequent design of a cavitation reactor. The diameter of the resonant chamber was varied in the range from 28.3 to 47.5 mm, and its length from 6 to 14 mm; in addition, the diameter of the outlet was changed from 6.1 to 6.3 mm. Based on the experimental data obtained, it was found that the optimal ratio of the length of the resonator chamber to the diameter of the inlet nozzle is 1.73, and the inner diameter of the resonator chamber to the diameter of the inlet nozzle corresponds to 5.5. Improving the technology of agricultural waste disposal will ensure their maximum involvement in economic circulation, reduce the consumption of traditional fuel and energy resources, and improve the technological and machine-building base, which makes it possible to produce competitive cavitation reactors.

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