Bio-gas augmentation and waste minimization by co-digestion process in anaerobic digestion system of a municipal waste water treatment plant

Sanaye, Sepehr; Mohammadi, Mohammad; Yazdani, Mohsen; Rashvanlou, Reza Barati

doi:10.1016/j.enconman.2022.115989

Cited by 13 publications

(9 citation statements)

References 72 publications

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“…The study of operation of anaerobic reactors of the Tehran waste water treatment plant (WWTP) was carried out in the mono-mode fermentation of sewage sludge and together with floated fat waste from slaughterhouses, bio-waste and cattle manure [18]. The results showed that addition of fats, biowaste and manure to the sludge increased the average amount of biogas produced from 10,524 m 3 /day (62.1 % CH4) to 29,161 m 3 /day (61.5 % CH4), 30,183 m 3 /day (59.5 % CH4) and 32,531 m 3 /day (53.8 % CH4), respectively.…”

Section: The World Trends In the Co-digestion Of Sewage Sludge And Or...mentioning

confidence: 99%

“…It is known that microbiocenosis of activated sludge is a complex consortium, which includes not only methane-producing bacteria, but also microorganisms that actively carry out previous stages of fermentationdisintegration, hydrolysis, acidogenesis and acetogenesis [2,[16][17][18]. In experimental studies during fermentation of excess activated sludge in contact conditions after reaching the stage of methanogenesisthe formation of methane, the sediment was used as an inoculum for fermentation of a new batch of sediments.…”

Section: Compoundsmentioning

confidence: 99%

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Retraction Note: Prospects of improving biogas technologies by increasing productivity of the methane generation process due to complex processing of organic waste

et al. 2023

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This paper aimed at analysing the current state of methods of increasing methane generation during treatment of organic sewage sludge. The authors considered the theoretical principles of biogas production and the main directions of intensification of methane fermentation processes. A chemical study of sediments produced at sewage treatment plants in the city of Kharkiv, Ukraine, showed that the C/N ratio in the investigated excess activated sludge is 4–5, in the mixture of primary and secondary sediment - 5–6, in sediment from sludge sites - 6–10, which is significantly less than the ratio of 20:1, which limits the negative impact of increased nitrogen content in organic substrate for methane fermentation. The directions for rising speed of the first phase of sediment fermentation and directions for increasing methane output during fermentation of a complex organic substrate have been determined. The promising technologies of adding organic substrates, richer in carbon compared to sewage sludge, have been noted. This solution will not only make it possible to improve productivity of fermenters, but at the same time resolve the issue of organic waste management.

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Section: The World Trends In the Co-digestion Of Sewage Sludge And Or...mentioning

confidence: 99%

Section: Compoundsmentioning

confidence: 99%

Retraction Note: Prospects of improving biogas technologies by increasing productivity of the methane generation process due to complex processing of organic waste

et al. 2023

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“…Anaerobic treatment can also be a potential source of bioenergy and can support actions to reduce greenhouse gas emissions released into the air. Bioenergy or biogas produced from the anaerobic digestion process of sludge can be employed as a renewable energy source (Sanaye et al, 2022). Using renewable energies to generate electricity and energy will not only solve the problem of global warming, but since they do not require water (unlike fossilfuel power plants), it can also help the global water crisis (Izanloo et al, 2022).…”

Section: Resultsmentioning

confidence: 99%

Comparison of organic wastewater treatment using anaerobic reactors fixed bed type in Germany and Indonesia

Andria Wardani,

Koestoer

2023

JIMESE

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Waste that has a high organic matter content can be treated biologically under anaerobic conditions or using bacteria that can live in an environment without oxygen. One method of wastewater treatment that can reduce high organic content is the Fixed Bed type anaerobic reactor system. The purpose of this research is to compare the treatment of organic wastewater using a Fixed Bed type anaerobic reactor that has been implemented in Germany with that implemented in Indonesia. The method used is a literature study by comparing case studies between the two countries, so the methodology used is a systematic literature review. Based on the results of the discussion, it is known that the organic waste that is processed using an anaerobic reactor carried out in Germany has several differences starting from the sub-stages of the process, and operations to the materials used such as the use of pumps, installation storage tanks, sewage filtration, use of stainless steel and heat exchangers. These differences if applied in Indonesia can cost relatively a lot so they are not suitable for application in Indonesia. Based on the literature study, it was concluded that the anaerobic wastewater treatment solution using a fixed bed type in Indonesia can be a good opportunity and can be imitated by other countries because it has simple equipment, but the reactor efficiency and the resulting percentage of methane production are relatively high. although the required HRT is long, anaerobic catalysts can be used as a solution.

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“…The study of operation of anaerobic reactors of the Tehran waste water treatment plant (WWTP) was carried out in the mono-mode fermentation of sewage sludge and together with floated fat waste from slaughterhouses, bio-waste and cattle manure [18]. The results showed that addition of fats, biowaste and manure to the sludge increased the average amount of biogas produced from 10,524 m 3 /day (62.1% CH 4 ) to 29,161 m 3 /day (61.5% CH 4 ), 30,183 m 3 /day (59.5% CH 4 ) and 32,531 m 3 /day (53.8% CH 4 ), respectively.…”

Section: The World Trends In the Co-digestion Of Sewage Sludge And Or...mentioning

confidence: 99%

“…spontaneous microbiological processes in wastewater led to deep fermentation of organic substrates to the formation of methane above sewage facilities where there was no forced aeration (Table 3). It is known that microbiocenosis of activated sludge is a complex consortium, which includes not only methane-producing bacteria, but also microorganisms that actively carry out previous stages of fermentation -disintegration, hydrolysis, acidogenesis and acetogenesis [2,[16][17][18]. In experimental studies during fermentation of excess activated sludge in contact conditions after reaching the stage of methanogenesis -the formation of methane, the sediment was used as an inoculum for fermentation of a new batch of sediments.…”

Section: Indicatormentioning

confidence: 99%

Prospects of Improving Biogas Technologies by Increasing Productivity of the Methane Generation Process due to Complex Processing of Organic Waste

2023

MCET

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This paper aimed at analysing the current state of methods of increasing methane generation during treatment of organic sewage sludge. The authors considered the theoretical principles of biogas production and the main directions of intensification of methane fermentation processes. A chemical study of sediments produced at sewage treatment plants in the city of Kharkiv, Ukraine, showed that the C/N ratio in the investigated excess activated sludge is 4-5, in the mixture of primary and secondary sediment -5-6, in sediment from sludge sites -6 -10, which is significantly less than the ratio of 20:1, which limits the negative impact of increased nitrogen content in organic substrate for methane fermentation. The directions for rising speed of the first phase of sediment fermentation and directions for increasing methane output during fermentation of a complex organic substrate have been determined. The promising technologies of adding organic substrates, richer in carbon compared to sewage sludge, have been noted. This solution will not only make it possible to improve productivity of fermenters, but at the same time resolve the issue of organic waste management.territories adjacent to treatment plants due to the occurrence of fires, emissions of greenhouse gases and toxic substances, contamination of groundwater with environmentally hazardous compounds. At the same time, according to its chemical composition, this sediment can potentially be used as a fertilizer, and is also a highly promising substrate to produce gas fuel.

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Bio-gas augmentation and waste minimization by co-digestion process in anaerobic digestion system of a municipal waste water treatment plant

Cited by 13 publications

References 72 publications

Retraction Note: Prospects of improving biogas technologies by increasing productivity of the methane generation process due to complex processing of organic waste

Retraction Note: Prospects of improving biogas technologies by increasing productivity of the methane generation process due to complex processing of organic waste

Comparison of organic wastewater treatment using anaerobic reactors fixed bed type in Germany and Indonesia

Prospects of Improving Biogas Technologies by Increasing Productivity of the Methane Generation Process due to Complex Processing of Organic Waste

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