Effect of pyrolysis conditions on food waste conversion to biochar as a coagulant aid for wastewater treatment

Yang, Heejin; Kang, Jin Kyu; Park, Seong‐Jik; Lee, Changgu

doi:10.1016/j.jwpe.2021.102081

Cited by 12 publications

(4 citation statements)

References 78 publications

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“…The pyrolysis experiments were conducted in the tubular furnace using the methods reported elsewhere with a little modification ( Li et al., 2022 ; Selvarajoo et al., 2022 ; Yang et al., 2021 ). Briefly, pyrolysis tests were performed by measuring 50 g of DCP and 5 mg of NiNPs samples in a crucible and placed inside the quartz tube reactor of the tubular furnace (Carbolite, CTF12/100/900) as shown in Figure 1 .…”

Section: Methodsmentioning

confidence: 99%

“…To obtain the fixed carbon (FC), the sum of other proximate parameters (MC, VM and AC) were deducted from 100 as shown in Eq. (8) ( Malucelli et al., 2019 ; Yang et al., 2021 )

…”

Section: Methodsmentioning

confidence: 99%

“…The pyrolysis experiments were conducted in the tubular furnace using the methods reported elsewhere with a little modification (Li et al, 2022;Selvarajoo et al, 2022;Yang et al, 2021).…”

Section: Pyrolysis Experiments Of Dcpmentioning

confidence: 99%

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Biochar and bio-oil fuel properties from nickel nanoparticles assisted pyrolysis of cassava peel

Egbosiuba

2022

Heliyon

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Section: Methodsmentioning

confidence: 99%

“…To obtain the fixed carbon (FC), the sum of other proximate parameters (MC, VM and AC) were deducted from 100 as shown in Eq. (8) ( Malucelli et al., 2019 ; Yang et al., 2021 )

…”

Section: Methodsmentioning

confidence: 99%

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Biochar and bio-oil fuel properties from nickel nanoparticles assisted pyrolysis of cassava peel

Egbosiuba

2022

Heliyon

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“…Biochar produced above 400 °C was effective for organic and inorganic pollutant sorption, whereas porous carbonized fractions are dominant at high temperatures (Uchimiya et al, 2010). Food waste biochar is also known to enhance Copper coagulation and remove Chromium, Nickel, and organic dyes from wastewater (Yang et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Engineered column treatment of greywater using raw and pyrolyzed coconut husk powder

Taylor

Appiah–Effah

Akodwaa-Boadi

et al. 2023

Front. Environ. Sci.

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Reclaimed water from wastewater has become a prominent water source option to manage water scarcity. This study explores the potential of coconut husk biomass, a common waste material in Ghana, as a valuable low-cost resource for greywater treatment. Engineered column treatment was applied to investigate the influence of pyrolysis and biochar properties of coconut husk biomass waste on greywater treatment. Coconut husk biomass waste was pyrolyzed at 600°C and characterized using SEM, FTIR, and XRD. Three engineered columns with 1) raw coconut husk powder (RCHP), 2) charred coconut husk powder (CCHP), and 3) sand-gravel filters (control setup) were used. A hydrostatic head of greywater with a throughput of 8.0 ml/min and a hydraulic retention time of 45 min was maintained for engineered columns. The SEM image suggested an increased surface area and pores due to the pyrolysis of the husk biomass. RCHP and CCHP contributed to 63% and 95% turbidity removal, respectively. Experimental results showed high removal efficiencies of 71% COD for CCHP. The nitrate removal efficiency of 78.93%, 88.38%, and 28.65% was observed for RCHP, CCHP, and control respectively. The log removal of faecal coliform by CCHP was two orders of magnitude higher than RCHP. Faecal and total coliform removal was 2.87 log units for CCHP. Significant differences were observed between CCHP and RCHP, p < 0.05 for electrical conductivity and total dissolved solids of effluents. CCHP showed a promising potential for greywater treatment. Pyrolyzed coconut husk powder is a promising adsorbent applicable to greywater treatment.

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Kenaf Biochar as an Eco‐Friendly Adsorbent for Removal of Cu(II) and Pb(II): Optimal Temperature, Adsorption Models, and Efficiency Evaluation

Choi,

Lee,

Yoon

et al. 2024

Applied Organom Chemis

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This study examined the adsorption capacities of biochars derived from kenaf (KF‐BCs) for the removal of heavy metals such as Cu(II) and Pb(II). The thermal decomposition temperature (300–750°C) significantly influenced the morphology and composition of KF‐BCs, enhancing their surface area, pore structure, and alkalinity. Among them, kenaf pyrolyzed at 750°C (KF‐750) was the most effective in removing Cu(II) and Pb(II), as validated by kinetic, equilibrium, and isotherm model analyses. Adsorption kinetics revealed that equilibrium was attained after 24 h, with chemisorption governing the process rate. Equilibrium adsorption conformed to the Langmuir and Freundlich models for Cu(II) and Pb(II), respectively. KF‐750 exhibited midrange adsorption capacities for Cu(II) and Pb(II) (23.47 ± 0.3 mg/g and 50.07 ± 0.9 mg/g, respectively), compared with the literature. The thermodynamic assessment revealed an endothermic process with positive ∆H0, indicating that higher temperatures favor metal adsorption. At low pH, adsorption decreased due to electrostatic repulsion, particularly affecting Cu(II). More than 99.8% of Cu(II) and Pb(II) were removed with a 5.00 g/L KF‐750 dose. The cation effect order on KF‐750 was Ca2+ > Mg2+ > Na+ > K+. Overall, KF‐750 demonstrates promising potential as an adsorbent for the efficient heavy metal removal from aqueous solutions, presenting a viable option for environmental remediation.

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Effect of pyrolysis conditions on food waste conversion to biochar as a coagulant aid for wastewater treatment

Cited by 12 publications

References 78 publications

Biochar and bio-oil fuel properties from nickel nanoparticles assisted pyrolysis of cassava peel

Biochar and bio-oil fuel properties from nickel nanoparticles assisted pyrolysis of cassava peel

Engineered column treatment of greywater using raw and pyrolyzed coconut husk powder

Kenaf Biochar as an Eco‐Friendly Adsorbent for Removal of Cu(II) and Pb(II): Optimal Temperature, Adsorption Models, and Efficiency Evaluation

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