Thermochemical conversion of mulching film waste via pyrolysis with the addition of cattle excreta

Lee, Nahyeon; Joo, Junghee; Lin, Kun‐Yi Andrew; Lee, Jechan

doi:10.1016/j.jece.2021.106362

Cited by 20 publications

(6 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Table 3 shows the atomic weight percentages of the elements and variations in the chemical components of the biochars generated from the two feedstock materials. When bio‐based waste is pyrolyzed, the carbon content changes, which results in a reduced amount of other elemental contents because certain functional groups containing oxygen are detached 58 . The nature of feedstock, the carbonization temperature, and the residence time are the primary determinants of the chemical characteristics of the produced biochars 47 .…”

Section: Discussion Of Resultsmentioning

confidence: 99%

“…When bio-based waste is pyrolyzed, the carbon content changes, which results in a reduced amount of other elemental contents because certain functional groups containing oxygen are detached. 58 The nature of feedstock, the carbonization temperature, and the residence time are the primary determinants of the chemical characteristics of the produced biochars. 47 The temperatures at which the primary raw material constituents such as hemicellulose, cellulose, and lignin decompose play a significant role in the final elemental composition.…”

Section: Energy Dispersive Spectroscopymentioning

confidence: 99%

See 1 more Smart Citation

Thermochemical conversion of African balsam leaves‐cow dung hybrid wastes into biochar

Adeniyi

Iwuozor

Emenike

2022

Biofuels Bioprod Bioref

View full text Add to dashboard Cite

African balsam (Daniella oliveri) leaves and cow dung are waste materials that are commonly accessible in Africa and can be used to produce biochar by simultaneous thermochemical processing. In this study, biochar was produced in a retort‐heated, non‐electrically powered, top‐lit updraft reactor using the biomass fuel‐powered thermochemical conversion of dried cow dung and African balsam leaves at an average temperature of 320 °C. The biochar was characterized using Fourier transform infrared spectroscopy (FTIR), energy dispersive spectroscopy (EDS), scanning electron microscopy (SEM), differential thermal analysis/thermogravimetric analysis (DTA/TGA), and Brunauer–Emmett–Teller (BET) analyses. After carbonization for 100 min, biochar was obtained from processed mixed leaves/cow dung with a yield of 70%. Fourier transform infrared analysis showed the presence of alkene, hydroxyl, alkyne, alkane, and sulfur‐containing functional groups. Scanning electron micrographs showed that the biochar's surface was made up of fibrillated particles with very few pores. The biochar was observed to have a surface area of 328.199 m2/g with a higher pore volume and lower pore size than biochar produced from cow dung alone. Energy dispersive spectroscopy showed that the biochar is mostly made up of carbon (67%), and that the introduction of the leaves into the biochar feedstock increased its carbon, silicon, potassium, and bromine content. Differential thermal analysis/thermogravimetric analyses revealed the biochar to be thermally stable. The findings of this study are helpful for attempts to manage solid wastes (African balsam leaves and cow dung), reduce environmental pollution, and produce biochar whose properties are adequate for it to be used as a soil additive. © 2022 Society of Chemical Industry and John Wiley & Sons, Ltd.

show abstract

Section: Discussion Of Resultsmentioning

confidence: 99%

Section: Energy Dispersive Spectroscopymentioning

confidence: 99%

Thermochemical conversion of African balsam leaves‐cow dung hybrid wastes into biochar

Adeniyi

Iwuozor

Emenike

2022

Biofuels Bioprod Bioref

View full text Add to dashboard Cite

show abstract

“…Pyrolysis can provide several benefits over alternative disposal pathways. In pyrolysis, used polyethylene mulch can be degraded at high temperatures between 400 to 1,200 • C under anaerobic or low-oxygen conditions (Lee et al, 2021). This facilitates the collection of the individual chemical components that can be used as feedstock to produce new polymers or fuel.…”

Section: Fate Of Polyethylene Mulch At the End Of The Growing Seasonmentioning

confidence: 99%

End-of-Life Management Options for Agricultural Mulch Films in the United States—A Review

Madrid

Wortman

Hayes

et al. 2022

Front. Sustain. Food Syst.

View full text Add to dashboard Cite

Polyethylene plastic mulches are widely used in specialty cropping systems in the United States due to the horticultural benefits they provide. However, polyethylene mulch is reapplied seasonally, generating large volumes of plastic waste that contribute to plastic pollution concerns. This review synthesizes scientific and industry findings to provide a state of current end-of-life options of polyethylene mulch in the United States and identifies opportunities that can improve plastic waste management with a special emphasis on soil-biodegradable plastic mulches. Major points discussed are: (1) polyethylene mulch use in specialty cropping systems, (2) economic, environmental and waste management impacts of polyethylene mulch use, (3) current common end-of-life pathways of used polyethylene mulch, (4) use of soil-biodegradable plastic mulch as an alternative to reduce the amount of plastic waste in the environment and offset the negative impacts associated with residual non-degradable plastics, (5) socioeconomic factors that reduce the adoption of soil-biodegradable plastic mulch, and (6) limitations of soil-biodegradable mulch. The results of this review conclude that recycling and upcycling of used polyethylene mulch can be a more sustainable disposal option, however cleaning and decontaminating used polyethylene mulch is costly and commercial technology is often not accessible nor economically viable in many regions in the current economic and political situation. To make recycling a viable pathway in the future, research and policy developments are necessary to refine and encourage recycling. Soil-biodegradable plastic mulches can offer an additional opportunity to help address these limitations, but they are not permitted in organic agriculture in the United States. Further studies are necessary to address the current knowledge gaps and gain a better understanding of the factors influencing the degradation of soil-biodegradable mulches under diverse field conditions. Improved end-of-life strategies should continue to be pursued that balance sustainable use of plastic mulch while minimizing environmental risks.

show abstract

“…These thermochemical routes are cost-effective approaches for end-life tires management and provide an interesting opportunity with a view to a "zero waste" circular economy. 11,12 In this field, pyrolysis is recognized as efficient method for waste valorization 13,14 with the simultaneous production of combustible gas, hydrocarbon mixtures, and carbon. The literature on this process applied to ET has been widely surveyed.…”

Section: Introductionmentioning

confidence: 99%

“…In this field, pyrolysis is recognized as efficient method for waste valorization 13,14 with the simultaneous production of combustible gas, hydrocarbon mixtures, and carbon. The literature on this process applied to ET has been widely surveyed.…”

Section: Introductionmentioning

confidence: 99%

Influence of different dry‐mixing techniques on the mechanical, thermal, and electrical behavior of ultra‐high molecular weight polyethylene/exhausted tire carbon composites

Duraccio¹,

Arrigo

Bartoli

et al. 2022

Polymers for Advanced Techs

View full text Add to dashboard Cite

The mechanical, thermal, and electrical behavior of ultra-high molecular weight (UHMWPE) composites containing different amount of pyrolyzed exhausted tire carbon (ETC) is investigated. Composites were obtained by dry-mixing the powders with a homogenizer and an impact mill. The results clearly indicate that, by changing the mixing method, it is possible to tune the rheological and morphological characteristics of the composites and in turn their mechanical, thermal, and electrical properties.Better performances were observed for the composites obtained with the impact mill, which showed improved Young modulus, reduced electrical and thermal resistance with respect to those of homogenized counterparts. All the composites exhibited a relevant reduction of electrical resistivity with a percolation threshold of 1.51 vol%.

show abstract

Thermochemical conversion of mulching film waste via pyrolysis with the addition of cattle excreta

Cited by 20 publications

References 42 publications

Thermochemical conversion of African balsam leaves‐cow dung hybrid wastes into biochar

Thermochemical conversion of African balsam leaves‐cow dung hybrid wastes into biochar

End-of-Life Management Options for Agricultural Mulch Films in the United States—A Review

Influence of different dry‐mixing techniques on the mechanical, thermal, and electrical behavior of ultra‐high molecular weight polyethylene/exhausted tire carbon composites

Contact Info

Product

Resources

About