Development and prototype testing of a novel small-scale pyrolysis system for the treatment of sanitary sludge

Beik, F.; Williams, Leon; Brown, Tim; Wagland, Stuart T.

doi:10.1016/j.enconman.2022.116627

Cited by 5 publications

(7 citation statements)

References 70 publications

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“…Generally, flash pyrolysis produces approximately 60 -75 wt.% bio-oil, 10 -25 wt.% biochar and 10-30 wt.% gases [41]. Several studies have reported the pyrolysis of human and animal waste for biochar and bio-oil production [42][43][44][45]. Most of the studies either focus on process optimization or evaluation of the influence of reaction conditions on biochar production [46,47], a study of the reaction mechanism or the development of new catalysts [48].…”

Section: Pyrolysismentioning

confidence: 99%

“…Their results showed that the properties of animal manure precursors and reaction temperature play a significant role in the physicochemical properties of the produced biochar. Recently, some researchers have explored the application of pyrolysis technology for the intermediate conversion of partially wet sanitary fecal sludge generated on train toilets [44]. The novel twin auger pyrolysis reactor produced about 50 % bio-oil yield, 40 % syngas yield and 10 % biochar yield at 500 o C.…”

Section: Pyrolysismentioning

confidence: 99%

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Pathways for the Valorization of Animal and Human Waste to Biofuels, Sustainable Materials and Value-Added Chemicals

Okolie¹,

Jimoh²,

Akande³

et al. 2023

Preprint

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Human and animal waste, including waste products originating from human or animal digestive systems such as urine, feces, and animal manure, have constituted a nuisance to the environment. Inappropriate disposal and poor sanitation of human and animal waste often cause negative impacts on human health through contamination of the terrestrial environment, soil, and water bodies. Therefore, it is necessary to convert these wastes into useful resources to mitigate their adverse environmental effect. The present study provides an overview and research progress of different thermochemical and biological conversion pathways for the transformation of human- and animal-derived waste into valuable resources. The physicochemical properties of human and animal waste are meticulously discussed as well as nutrient recovery strategies. In addition, a bibliometric analysis is provided to identify the trends in research and knowledge gaps. The results reveal that the U.S.A, China and England are the dominant countries in the research areas related to resource recovery from human or animal waste. In addition, researchers from the University of Illinois, the University of California Davis, the Chinese Academy of Science and Zhejiang University are front runners in research related to these areas. Future research should be centred on developing technologies for the on-site recovery of resources, exploring integrated resource recovery pathways, and exploring different safe waste processing methods.

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Section: Pyrolysismentioning

confidence: 99%

Section: Pyrolysismentioning

confidence: 99%

Pathways for the Valorization of Animal and Human Waste to Biofuels, Sustainable Materials and Value-Added Chemicals

Okolie¹,

Jimoh²,

Akande³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…Generally, flash pyrolysis produces approximately 60-75 wt.% bio-oil, 10-25 wt.% biochar, and 10-30 wt.% gases [33]. Several studies have reported the pyrolysis of human and animal waste for biochar and bio-oil production [34][35][36][37]. Most of the studies either focus on process optimization or evaluation of the influence of reaction conditions on biochar production [38], a study Several studies have reported the pyrolysis of human and animal waste for biochar and bio-oil production [34][35][36][37].…”

Section: Pyrolysismentioning

confidence: 99%

“…Several studies have reported the pyrolysis of human and animal waste for biochar and bio-oil production [34][35][36][37]. Most of the studies either focus on process optimization or evaluation of the influence of reaction conditions on biochar production [38], a study Several studies have reported the pyrolysis of human and animal waste for biochar and bio-oil production [34][35][36][37]. Most of the studies either focus on process optimization or evaluation of the influence of reaction conditions on biochar production [38], a study of the reaction mechanism, or the development of new catalysts [39].…”

Section: Pyrolysismentioning

confidence: 99%

Pathways for the Valorization of Animal and Human Waste to Biofuels, Sustainable Materials, and Value-Added Chemicals

et al. 2023

View full text Add to dashboard Cite

Human and animal waste, including waste products originating from human or animal digestive systems, such as urine, feces, and animal manure, have constituted a nuisance to the environment. Inappropriate disposal and poor sanitation of human and animal waste often cause negative impacts on human health through contamination of the terrestrial environment, soil, and water bodies. Therefore, it is necessary to convert these wastes into useful resources to mitigate their adverse environmental effect. The present study provides an overview and research progress of different thermochemical and biological conversion pathways for the transformation of human- and animal-derived waste into valuable resources. The physicochemical properties of human and animal waste are meticulously discussed, as well as nutrient recovery strategies. In addition, a bibliometric analysis is provided to identify the trends in research and knowledge gaps. The results reveal that the USA, China, and England are the dominant countries in the research areas related to resource recovery from human or animal waste. In addition, researchers from the University of Illinois, the University of California Davis, the Chinese Academy of Sciences, and Zhejiang University are front runners in research related to these areas. Future research could be extended to the development of technologies for on-site recovery of resources, exploring integrated resource recovery pathways, and exploring different safe waste processing methods.

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“…An increase in the temperature requires a rise in the heating rate of the reactor walls, which additionally enhances the possibility of local overheating of the material upon its contact with the walls. Thus, the quality of conventional thermal pyrolysis turns out to be quite low and strongly depends on the design of a particular reactor and the applied technological cycle [19][20][21]. As a result, it is complicated to obtain materials of stable quality (which is an important factor for the chemical industry) using conventional pyrolysis.…”

Section: Introductionmentioning

confidence: 99%

Experimental Complex for Peat Fragmentation by Low-Temperature Microwave Pyrolysis

Krapivnitckaia,

Ananicheva,

Alyeva

et al. 2023

Processes

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The design of a technological complex for microwave processing of organic materials is proposed. The electrodynamic system of an oversized microwave reactor for low-temperature pyrolysis has been developed. The constructive elements of the complex that allow its continuous failure-free operation in conditions of high radiation intensity are described. Based on the prototype of the elaborated reactor, model experiments on microwave pyrolysis of peat were carried out. The elemental composition of the solid fraction was analyzed during the conducted experiments. The possibility of the efficiency enhancement of the proposed processing method and potential applications of the novel technology are discussed.

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Development and prototype testing of a novel small-scale pyrolysis system for the treatment of sanitary sludge

Cited by 5 publications

References 70 publications

Pathways for the Valorization of Animal and Human Waste to Biofuels, Sustainable Materials and Value-Added Chemicals

Pathways for the Valorization of Animal and Human Waste to Biofuels, Sustainable Materials and Value-Added Chemicals

Pathways for the Valorization of Animal and Human Waste to Biofuels, Sustainable Materials, and Value-Added Chemicals

Experimental Complex for Peat Fragmentation by Low-Temperature Microwave Pyrolysis

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