The Removal of Crystal Violet from Textile Wastewater Using Palm Kernel Shell-Derived Biochar

Kyi, Phyo Phyo; Quansah, Jude Ofei; Lee, Changgu; Moon, Joon‐Kwan; Park, Seong‐Jik

doi:10.3390/app10072251

Cited by 64 publications

(20 citation statements)

References 88 publications

(59 reference statements)

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“…These reported results inspire future efforts to improve adsorption capacity of SF:SS biopolymer composite by incorporating carbon nanomaterials, e.g., (reduced) graphene oxide and carbon nanotubes. A further comparison of adsorption capacity with other classes of adsorbent was carried out as follows: The present results of SF:SS (4:1) show better CV adsorption capacity of 83.31 mg•g −1 (according to the Langmuir adsorption isotherm) compared to the biochar derived from palm-kernel shell [55]. For Cu 2+ adsorption, the SF:SS biocomposite adsorbent exhibits better adsorption capacity, of up to 73.22 mg•g −1 , than that of algae-based bioadsorbent, which showed an adsorption capacity of 42.25 mg•g −1 [56].…”

Section: Pollutantmentioning

confidence: 75%

Hierarchically 3-D Porous Structure of Silk Fibroin-Based Biocomposite Adsorbent for Water Pollutant Removal

et al. 2021

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This study explored the tunability of a 3-D porous network in a freeze-dried silk fibroin/soursop seed (SF:SS) polymer composite bioadsorbent. Morphological, physical, electronic, and thermal properties were assessed using scanning electron microscopy, the BET N2 adsorption-desorption test, Fourier transform infrared (FTIR) spectroscopy, and thermogravimetric analysis (TGA). A control mechanism of pore opening–closing by tuning the SS fraction in SF:SS composite was found. The porous formation is apparently due to the amount of phytic acid as a natural cross-linker in SS. The result reveals that a large pore radius is formed using only 20% wt of SS in the composite, i.e., SF:SS (4:1), and the fibrous network closes the pore when the SS fraction increases up to 50%, i.e., SF:SS (1:1). The SF:SS (4:1) with the best physical and thermal properties shows an average pore diameter of 39.19 nm, specific surface area of 19.47 m2·g−1, and thermal stability up to ~450 °C. The removal of the organic molecule and the heavy metal was assessed using crystal violet (CV) dye and the Cu2+ adsorption test, respectively. The adsorption isotherm of both CV and Cu2+ on SF:SS (4:1) follows the Freundlich model, and the adsorption kinetic of CV follows the pseudo-first-order model. The adsorption test indicates that physisorption dominates the adsorption of either CV or Cu2+ on the SF:SS composites.

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Section: Pollutantmentioning

confidence: 75%

Hierarchically 3-D Porous Structure of Silk Fibroin-Based Biocomposite Adsorbent for Water Pollutant Removal

et al. 2021

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“…Moreover, the biochar itself can vary based on the initial biomass from which it is produced. In order to find the best biochar-dye combination, a summary of articles examining different combinations was made [26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43].…”

Section: Discussionmentioning

confidence: 99%

“…Table 1 summarizes different characteristics from 18 articles that present the use of biochar in treatment of textile wastewater [26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43]. The articles are catagorized to biochar properties, dye properties, experimental conditions, dye adsorption experiments compared to a common biochar and modified biochar.…”

Section: Discussionmentioning

confidence: 99%

Decolorization of dyes from textile wastewater using biochar: a review

et al. 2020

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The textile industry is one of the largest in many low and middle-income countries, especially in Asia, second only to agriculture. Textile wastewater is discharged into the environment due to the lack of affordable and sustainable solutions to adsorb or remove the dye from the water. Biochar is generated by pyrolysis of organic material from plant waste in low-oxygen conditions, and is considered carbon-negative. Biochar for dye adsorption in textile wastewater effluent was proven to be highly effective. However, adsorption efficiency varies with experimental parameters, therefore there is a gap in application especially in small dye houses. Efforts should be made to find innovative and affordable solution to make the textile industry more sustainable, by developing methods for collection and reuse, recycle and upcycle of textile waste, by reducing the consumption of water, energy and chemicals and by developing methods for treatment of the textile wastewater.

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“…However, until now, no one has investigated the potential of palm kernel shell biochar (PKSB) for the removal of PAHs. Thus far, few scientific research studies are reported in the literature on the usage of PKSB for the adsorption of fluoride [30], heavy metals [31,32], crystal violet [33], and phenol [34] regarding efficient removal performance [35]. The positive outcomes of PKSB for different applications encourage investigating its potential for the removal of PAHs from PW.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Micro-Pollutants’ Removal from Wastewater Using Agricultural Waste-Derived Sustainable Adsorbent

Alhothali

Haneef

Mustafa

et al. 2021

IJERPH

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Water pollution due to the discharge of untreated industrial effluents is a serious environmental and public health issue. The presence of organic pollutants such as polycyclic aromatic hydrocarbons (PAHs) causes worldwide concern because of their mutagenic and carcinogenic effects on aquatic life, human beings, and the environment. PAHs are pervasive atmospheric compounds that cause nervous system damage, mental retardation, cancer, and renal kidney diseases. This research presents the first usage of palm kernel shell biochar (PKSB) (obtained from agricultural waste) for PAH removal from industrial wastewater (oil and gas wastewater/produced water). A batch scale study was conducted for the remediation of PAHs and chemical oxygen demand (COD) from produced water. The influence of operating parameters such as biochar dosage, pH, and contact time was optimized and validated using a response surface methodology (RSM). Under optimized conditions, i.e., biochar dosage 2.99 g L−1, pH 4.0, and contact time 208.89 min, 93.16% of PAHs and 97.84% of COD were predicted. However, under optimized conditions of independent variables, 95.34% of PAH and 98.21% of COD removal was obtained in the laboratory. The experimental data were fitted to the empirical second-order model of a suitable degree for the maximum removal of PAHs and COD by the biochar. ANOVA analysis showed a high coefficient of determination value (R2 = 0.97) and a reasonable second-order regression prediction. Additionally, the study also showed a comparative analysis of PKSB with previously used agricultural waste biochar for PAH and COD removal. The PKSB showed significantly higher removal efficiency than other types of biochar. The study also provides analysis on the reusability of PKSB for up to four cycles using two different methods. The methods reflected a significantly good performance for PAH and COD removal for up to two cycles. Hence, the study demonstrated a successful application of PKSB as a potential sustainable adsorbent for the removal of micro-pollutants from produced water.

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The Removal of Crystal Violet from Textile Wastewater Using Palm Kernel Shell-Derived Biochar

Cited by 64 publications

References 88 publications

Hierarchically 3-D Porous Structure of Silk Fibroin-Based Biocomposite Adsorbent for Water Pollutant Removal

Hierarchically 3-D Porous Structure of Silk Fibroin-Based Biocomposite Adsorbent for Water Pollutant Removal

Decolorization of dyes from textile wastewater using biochar: a review

Optimization of Micro-Pollutants’ Removal from Wastewater Using Agricultural Waste-Derived Sustainable Adsorbent

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