Potential of pyrolysis of spacecraft solid waste for water recovery and plant-growth media production

Payne, Jacey L.; Bhakta, Nayan N.; Lyons, Sarah K.; Mohamed, R. A. M.; Carroll, Kenneth C.; Brewer, Catherine E.

doi:10.1016/j.jaap.2018.09.004

Cited by 3 publications

(2 citation statements)

References 26 publications

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“…Green waste from tomatoes, an organic material, was repurposed into a substrate that can effectively be applied in various growing conditions (Dunlop et al, 2015). Another studied aspect of biochar is its benefits, allowing for efficient water-reutilization (Payne et al, 2018).…”

Section: Food Wastementioning

confidence: 99%

Closed-loop agriculture systems meta-research using text mining

Ragany

Haggag

El‐Dakhakhni

et al. 2023

Front. Sustain. Food Syst.

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The growing global population and climate change threaten the availability of many critical resources, and have been directly impacting the food and agriculture sector. Therefore, new cultivation technologies must be rapidly developed and implemented to secure the world's future food needs. Closed-loop greenhouse agriculture systems provide an opportunity to decrease resource reliance and increase crop yield. Greenhouses provide versatility in what can be grown and the resources required to function. Greenhouses can become highly efficient and resilient through the application of a closed-loop systems approach that prioritizes repurposing, reusing, and recirculating resources. Here, we employ a text mining approach to research the available research (meta-research) and publications within the area of closed-loop systems in greenhouses. This meta-research provides a clearer definition of the term “closed-loop system” within the context of greenhouses, as the term was previously vaguely defined. Using this meta-research approach, we identify six major existing research topic areas in closed-loop agriculture systems, which include: models and controls; food waste; nutrient systems; growing media; heating; and energy. Furthermore, we identify four areas that require further urgent work, which include the establishment of better connection between academic research to industry applications; clearer criteria surrounding growing media selection; critical operational requirements of a closed-loop system; and the functionality and synergy between the many modules that comprise a closed-loop greenhouse systems.

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Section: Food Wastementioning

confidence: 99%

Closed-loop agriculture systems meta-research using text mining

Ragany

Haggag

El‐Dakhakhni

et al. 2023

Front. Sustain. Food Syst.

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“…This method has been used to treat diverse waste materials, including plastic [19][20][21]. The advantages are that it can reduce the volume of waste and produce value-added materials through cogeneration [22][23][24]. Value-added products such as pyrolytic oil and gas contain high calorific energy, which could be applied at a pyrolysis plant to fulfill the energy requirement [25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Pyrolysis of Polyethylene Terephthalate over Carbon-Supported Pd Catalyst

et al. 2020

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Pyrolysis of polyethylene terephthalate (PET) produces polycyclic hydrocarbons and biphenyl derivatives that are harmful to human health and the environment. Therefore, a palladium metal catalyst (5 wt.% Pd loaded on activated carbon) was used to prevent the formation of harmful materials. When a Pd catalyst/PET ratio of 0.01 was applied in pyrolysis of PET, it did not show a meaningful difference in the generation of polycyclic hydrocarbons and biphenyl derivatives. However, when a Pd catalyst/PET ratio of 0.05 was used during pyrolysis, it prevented their formation and generation at experimental temperature ranges (400–700 °C). For example, the concentration of 2-naphthalenecarboxylic acid produced, which is a typical polycyclic hydrocarbon material, was reduced by 44%. In addition, the concentration of biphenyl-4-carboxylic acid, which is contained in biphenyl derivatives, was reduced by 79% compared to non-catalytic pyrolysis at 800 °C. This was because the ring-opening reaction and free radical mechanism caused by the Pd catalyst and thermal cracking were dominant during the pyrolysis of PET. Apart from these materials, amine compounds were generated as products of the pyrolysis of PET. Amine concentration showed a similar trend with polycyclic hydrocarbons and benzene derivatives. Based on these results, the total concentration of polycyclic hydrocarbons and biphenyl derivatives was compared; the results confirmed that the concentrations of all substances were reduced. This research suggests that a metal-supported catalyst will help create a more environmentally friendly and reliable method of industrial plastic waste disposal.

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Review of research and development on pyrolysis process

Velmurugan¹

2022

Materials Today: Proceedings

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Potential of pyrolysis of spacecraft solid waste for water recovery and plant-growth media production

Cited by 3 publications

References 26 publications

Closed-loop agriculture systems meta-research using text mining

Closed-loop agriculture systems meta-research using text mining

Pyrolysis of Polyethylene Terephthalate over Carbon-Supported Pd Catalyst

Review of research and development on pyrolysis process

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