Sorption of volatile organic compounds on non-activated biochar

Kumar, Avanish; Singh, Ekta; Khapre, Abhishek; Bordoloi, Nirmali; Kumar, Sunil

doi:10.1016/j.biortech.2019.122469

Cited by 105 publications

(22 citation statements)

References 47 publications

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“…In order to deal with COVID-waste, two types of other techniques are primarily available for the treatment practice, which are: (i) pyrolysis (ii) microwave, these two are working at high temperature and medium temperature, respectively. Pyrolysis normally works within 540–830 °C temperature range, which includes plasma pyrolysis, pyrolysis-oxidation, induction and laser-based pyrolysis ( Datta et al, 2018 ; Kumar et al, 2020b ; Singh et al, 2021 ). The primary combustion chamber is fed by air during pyrolysis-oxidation where liquid waste and organic solids leave as the metal particles at ∼600 °C temperature.…”

Section: Techniques For Covid-19 Waste Managementmentioning

confidence: 99%

Solid waste management during COVID-19 pandemic: Recovery techniques and responses

et al. 2022

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Solid waste management (SWM) is a service of public health that is often understated in its significance. If a public health emergency like the COVID-19 outbreak exacerbates the SWM problem, its true importance as an imperative service becomes more apparent. The crisis triggered by the COVID-19 pandemic has changed the dynamics of waste generation globally in nearly every sector and has therefore raised the need for special attention. The unpredictable variations in the quantity and composition of waste also pressurize policymakers to react dynamically. This review highlights the major problems faced during the pandemic by SWM sector and the underlying possibilities to fill the gaps in the existing system. The review focuses on particular areas that have been the most important cause of concern throughout the crisis in the process of waste management. In addition, the mixing of virus infected biomedical waste with the stream of normal solid waste and lack of active involvement of the citizen and cooperation presents the major negative safety and health concerns for the workers involved in the sanitation process. Apart from presenting innovative solutions to tackle current waste management issues, this study also proposes several key potential guidelines to holistically mitigate possible future pandemics, if any. This article can also be of great implication for creation of a specific strategy towards preventing/controlling any potential pandemic of similar kind in the near future.

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Section: Techniques For Covid-19 Waste Managementmentioning

confidence: 99%

Solid waste management during COVID-19 pandemic: Recovery techniques and responses

et al. 2022

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“…Carbonization and chemical activation can be accomplished in one single process by treating biochar at 300-800 °C in the presence of activating agents such as acid, KOH, alkali, metal salt, etc. [78,79] . The choice of the pyrolysis temperature is also essential since it controls both the non-carbonized organic matter content and the surface morphology [80] .…”

Section: Biocharmentioning

confidence: 99%

Boosting VOCs elimination by coupling different techniques

Khawaja¹,

Veerapandian²,

Bitar³

et al. 2022

Chem Synth

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Volatile Organic Compounds (VOCs) are known to be hazardous and harmful to human health and the environment. In mixtures or during repeated exposures, significant toxicity of these compounds in trace amounts has been revealed. In vitro air-liquid interface approaches underlined the interest in evaluating the impact of repeated VOC exposure and the importance of carrying out a toxicological validation of the techniques in addition to the standard chemical analyses. The difficulties in sampling and measuring VOCs in stationary source emissions are due to both the complexity of the mixture present and the wide range of concentrations. The coupling of VOC treatment techniques results in efficient systems with lower operating energy consumption. Three main couplings are outlined in this review, highlighting their advantages and relevance. First, adsorption-catalysis coupling is particularly valuable by using adsorption and catalytic oxidation regeneration initiated, for example, by selective dielectric heating. Then, several key aspects of the plasma catalysis process, such as the choice of catalysts suitable for the non-thermal plasma (NTP) environment, the simultaneous removal of different VOCs, and the in situ regeneration of the catalyst by NTP exposure, are discussed. The adsorption-photocatalysis coupling technology is also one of the effective and promising methods for VOC removal. The VOC molecules strongly adsorbed on the surface of the photocatalyst can be directly oxidized by the photogenerated hole on the photocatalyst (e.g., TiO2).

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“…Biofertilizers known as microbial inoculants are the carrier-based materials that contain beneficial microbes intended to enhance soil fertility and help the development of plants by increasing its diversity and biological activity [ 66 ]. It plays a vital role in decreasing inorganic fertilizer usage while increasing production capacity, in addition to preserving soil fertility.…”

Section: Resource Recovery From Apple Orchard Wastementioning

confidence: 99%

Apple orchard waste recycling and valorization of valuable product-A review

et al. 2021

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Huge quantities of apple orchard waste (AOW) generated could be regarded as a promising alternative energy source for fuel and material production. Conventional and traditional processes for disposal of these wastes are neither economical nor environment friendly. Hence, sustainable technologies are required to be developed to solve this long-term existence and continuous growing problem. In light of these issues, this review pays attention towards sustainable and renewable systems, various value-added products from an economic and environmental perspective. Refined bio-product derived from AOW contributes to resource and energy demand comprising of biomethane, bioethanol, biofuels, bio-fertilizers, biochar, and biochemicals, such as organic acid, and enzymes. However, the market implementation of biological recovery requires reliable process technology integrated with an eco-friendly and economic production chain, classified management.

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Sorption of volatile organic compounds on non-activated biochar

Cited by 105 publications

References 47 publications

Solid waste management during COVID-19 pandemic: Recovery techniques and responses

Solid waste management during COVID-19 pandemic: Recovery techniques and responses

Boosting VOCs elimination by coupling different techniques

Apple orchard waste recycling and valorization of valuable product-A review

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