TMA and H 2 S gas removals using metal loaded on rice husk activated carbon for indoor air purification

Nam, Hyungseok; Wang, Shuang; Jeong, Hee-Rok

doi:10.1016/j.fuel.2017.10.089

Cited by 87 publications

(41 citation statements)

References 30 publications

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“…As Thermogravimetric analysis (TGA)/Derivative thermogravimetry (DTG) results showed the presence of lignin, a high concentration of oxygen was found in cocoa AC, which is different from activated rice husk carbon (ARHC) with a low oxygen that was activated over KOH chemical activation. This was because of removal of functional groups of hemicellulose and cellulose by the carbonization and activation process at a higher temperature . The Van Krevelen diagram shown in Figure shows that the elemental ratios of cocoa AC are close to that of raw biomass.…”

Section: Resultsmentioning

confidence: 86%

“…Also, biological methods include bioscrubber, biofiltration, and biotrickling filter . Among the introduced methods, activated carbon adsorption technology is considered to be a promising approach for removal of TMA and H 2 S due to its low cost, high efficiency, convenient application, simplicity in practical design, and abundant source . Also, it can be considered as carbon neutral or negative materials, which can be degradable after use as filter.…”

Section: Introductionmentioning

confidence: 99%

“…Tsutomu et al carried out the adsorption of TMA using activated carbon from wood with chemical activation of ZnCl 2 , the conclusions indicated that high specific surface area and large micro‐ and mesopore structures as well as acidic functional groups can contribute to improving adsorption performance. Our previous study on the adsorption of TMA and H 2 S was conducted using metal loaded on rice husk activated carbon in an enclosed chamber . The metal‐loaded activated carbon was prepared by carbonization at 450°C and chemical activation (KOH) at 750°C.…”

Section: Introductionmentioning

confidence: 99%

“…Schematic diagram of (a) mixing process of cocoa activated carbon, (b) manufacturing process of cocoa activated carbon filter, (c) new filter and the filter saved for 2 months, (d) toxic gases removal experimental apparatus, and (e) syringe‐type detector and gas detector tube imported from a previous study [Color figure can be viewed at wileyonlinelibrary.com]…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Utilization of cocoa activated carbon for trimethylamine and hydrogen sulfide gas removals in a confined space and its techno‐economic analysis and life‐cycle analysis

Wang

Nam

2019

Env Prog and Sustain Energy

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In this study, a removal technique of porous activated carbon filter was developed using copper impregnated on commercially available cocoa activated carbon (Cu/AC) for the removal of toxic pollutant gases (trimethylamine [TMA] and hydrogen sulfide [H2S]). Cu/AC (filter) was characterized with Scanning electron microscope (SEM), Energy dispersive X‐ray spectroscopy (EDS), Thermogravimetric analysis (TGA)/Differential thermal analysis, proximate analysis, Carbon, hydrogen, nitrogen, sulfur (CHNS)/O, and Brunauer–Emmett–Teller, the results indicated the Cu/AC possesses good physical and chemical characteristics and is suitable for adsorption of air pollutants. The Cu/AC filter exhibited excellent adsorption capacity for the removal of TMA (qe = 654.8 mg/g) and H2S (qe = 220.37 mg/g). The isotherm and kinetic models were applied to analyze the adsorption properties and adsorption mechanism. Langmuir isotherm showed best fit for the adsorption of TMA and H2S, whereas the pseudo‐first‐ and second‐order kinetic models best fitted in describing the adsorption of H2S and TMA, respectively. Also, the adsorption process for the removal of TMA and H2S was controlled by the intraparticle diffusion model. The H2S‐adsorbed Cu/AC filter can be regenerated but not lasting too many cycles. Techno‐economic analysis and life‐cycle analysis (LCA) were performed at a plant scale. Production costs were ¢1.37 for cocoa AC filter and ¢10.13 for activated rice husk (ARH) filter. Also, the LCA result for during the filter production was estimated to be 2.52 kg CO2‐eq for cocoa AC filter and 4.47 kg CO2‐eq for ARH filter. This study proves the competitiveness compared to ARH filter of the previous study in the adsorption performance and the filter production cost.

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Section: Resultsmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Utilization of cocoa activated carbon for trimethylamine and hydrogen sulfide gas removals in a confined space and its techno‐economic analysis and life‐cycle analysis

Wang

Nam

2019

Env Prog and Sustain Energy

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“…Activated carbon (AC) produced from biomass waste has been extensively used for sorbent material, for example in water treatment (Orha et al, 2016), soil decontamination (Vasilyeva et al, 2010), purification of air (Nam et al, 2018), remediation of marine sediment (Samuelsson et al, 2015) and sediment management (Ghosh et al, 2011). AC has also been used for the removal of dye wastewaters (Chandra et al, 2007;Regti et al, 2017;Hameed et al, 2017;Kumar et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Effects of Fe2+ and Fe3+ ratio impregnated onto local commercial activated carbon coconut shell powder on the dye removal efficiency

et al. 2018

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Sejarah artikel:The present study reports the performance of magnetic activated carbon impregnated with Fe 2+ and Fe 3+ on the removal of dye from a simulated wastewater. The magnetic activated carbon (MAC) as a magnetic absorbent was prepared by co-precipitation method and followed by impregnation process. The activated carbon (AC) was supplied from a local commercial activated carbon coconut shell powder. The objective of this study was to investigate the effects of Fe 2+ and Fe 3+ on the quality product of MAC for dye (methylene blue) adsorption. The molar ratios of Fe 2+ and Fe 3+ used during the preparation of the MAC were 1:1; 1:2, and 2:1. The MAC products were characterized by using scanning electron microscope (SEM), energy dispersive X-ray (EDX), and Fourier transform infrared spectroscopy (FT-IR) analysis techniques. The results confirmed that the concentration of magnetic particles (Fe 3 O 4 ) on the MAC surface increased following the impregnation process. However, this results lowering adsorption properties of the MAC adsorbents, which subsequently affected the dye removal performance. The ratio of Fe 2+ :Fe 3+ on the MAC preparation did not significantly change the MAC absorbent on the dye removal efficiency. Additionally, MAC derived from local AC possess a prospect as a sustainable alternative for dye pollutant adsorbent.

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Biomass as a sustainable resource for value‐added modern materials: a review

Sharma

Kaur

Punj

et al. 2020

Biofuels Bioprod Bioref

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Over the past century, the world's population has increased greatly. The growth in the population has increased the global food demand, so the food sector has increased its production. As a result of the increased production and consumption, a huge amount of agro-food waste is being generated yearly. Rice husk, wheat straw, sugarcane bagasse, corn husk, peanut shell, eggshell, are just a few examples of agro-food wastes. As these agro-food wastes and their by-products are left unused and unattended, their amount is increasing globally. It is imperative to find ways to put these wastes to environmentally viable use. These wastes find direct uses in biofertilizers, mud houses, animal feed, biofuel, and heat generation in small-scale industries, etc. After heat generation, ashes are considered as a secondary by-product, which can be used as a sustainable and renewable resource for synthesizing value-added products for various applications. This article presents a review of the traditional and advanced methods of utilizing these wastes in household applications, animal feed, fertilizers, fuel generation, pyrolysis, and for the removal of toxic metals from polluted water. These secondary resources can also be used in construction materials and for the synthesis of glasses and glass-ceramics, which can be used in bioengineering, optical, and dielectric materials. Agrofood wastes can be used as resource materials to develop modern materials with better properties instead of using minerals. This not only reduces the environment-and management-related problem of the wastes but also provides a sustainable alternative way to produce cost-effective value-added materials for the benefit of society.

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TMA and H 2 S gas removals using metal loaded on rice husk activated carbon for indoor air purification

Cited by 87 publications

References 30 publications

Utilization of cocoa activated carbon for trimethylamine and hydrogen sulfide gas removals in a confined space and its techno‐economic analysis and life‐cycle analysis

Utilization of cocoa activated carbon for trimethylamine and hydrogen sulfide gas removals in a confined space and its techno‐economic analysis and life‐cycle analysis

Effects of Fe2+ and Fe3+ ratio impregnated onto local commercial activated carbon coconut shell powder on the dye removal efficiency

Biomass as a sustainable resource for value‐added modern materials: a review

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