The adsorption of heavy metal by Bornean oil palm shell and its potential application as constructed wetland media

Chong, Harry Lye Hin; Chia, Psk; Ahmad, Mohammad Norazmi

doi:10.1016/j.biortech.2012.11.136

Cited by 90 publications

(25 citation statements)

References 30 publications

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“…The equilibrium time of SCL for Pb 2+ is surprisingly shorter than that of the reported absorbents based on lignocellulosic materials (Manzoor et al, 2013;Chakravarty et al, 2010;Chong et al, 2013). On one hand, cotton linter has a loose structure in nature, and sulfonated modification further increased the accessibility of fiber (as mentioned in Section 3.1), so the diffusion of Pb 2+ to active absorption sites increased.…”

Section: Adsorption Kineticsmentioning

confidence: 81%

Sulfonated modification of cotton linter and its application as adsorbent for high-efficiency removal of lead(II) in effluent

Dong

Zhang²,

Pang³

et al. 2013

Bioresource Technology

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Section: Adsorption Kineticsmentioning

confidence: 81%

Sulfonated modification of cotton linter and its application as adsorbent for high-efficiency removal of lead(II) in effluent

Dong

Zhang²,

Pang³

et al. 2013

Bioresource Technology

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“…Oil palm shell (OPS) is an agricultural solid waste produced from the palm oil industry in tropical regimes with the significant amount of waste material produced by the oil palm industry having led to calls for an improvement in recycling. It is estimated that 6.89 million tons of OPS are produced annually as a byproduct of the oil palm industry with this number being expected to increase further . While the majority of this byproduct is currently utilized as boiler fuel, other candidate applications include the use of OPS as a natural filler for the reinforcement of concrete and other composite materials .…”

Section: Introductionmentioning

confidence: 99%

Mechanical and thermal characterization of polyester composite containing treated wood flour from Palm oil biomass

et al. 2016

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The effect of water and alkali treatment on the thermal decomposition of oil palm shell (OPS) together with the mechanical performance of polyester composites reinforced with treated OPS has been presented in this work. Treatment of OPS with cold/hot distilled water and cold alkali treatment were found to improve the tensile and flexural strength of the resulting composites although the highest mechanical performance was noted with the use of sonication in hot distilled water. On the other hand, hot alkali treatment was found to produce a composite mechanical performance similar to that of the hot distilled water treatment with sonication. FTIR tests indicated that adsorbed water molecules together with some parts of the hemicellulose and lignin were removed by the treatments. Thermogravimetric analysis and scanning electron microscopy of the treated OPS with hot alkali (1%–9% concentration) showed that the mechanical performance reach a peak at 7% alkali concentration with a further increase in concentration resulting in a significant lignin mass loss and decrease in mass residue of the OPS. This trend was attributed to the higher alkali concentration removing hemicellulose as a binder for the cellulose and lignin which resulted in debonding between the filler and matrix components of the OPS and hence a deterioration in fiber structure and resulting poor composite mechanical performance. Therefore, it was concluded that the optimum concentration of alkali treatment required for maximum mechanical performance of natural filler reinforced polymer composites can be obtained simply from thermogravimetric analysis. POLYM. COMPOS., 39:1200–1211, 2018. © 2016 Society of Plastics Engineers

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“…However, for the entire time span examined (0-168 h), a pseudo-second-order kinetic model proved to describe the data more accurately. Secondorder or pseudo-second-order models have often been found to provide acceptable descriptions of kinetic sorption data (Blazquez et al 2011;Chong et al 2013;Ho and Ofomaja 2006). Table 2 gives empirical q e , k data and R 2 value from the first 168 h of contact to the sorbent for TNT concentrations.…”

Section: Resultsmentioning

confidence: 98%

Biotransformation of pink water TNT on the surface of a low-cost adsorbent pine bark

et al. 2015

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This two-week anaerobic batch study evaluated 2,4,6-trinitrotoluene (TNT) removal efficiency from industrial pink water by (1) adsorption on low-cost adsorbent pine bark, and (2) adsorption coupled with TNT biotransformation by specialised microbial communities. Samples of the supernatant and acetonitrile extracts of pine bark were analysed by HPLC, while the composition of the bacterial community of the experimental batches, inocula and pine bark were profiled by high-throughput sequencing the V6 region of the bacterial 16S rRNA gene. Integrated adsorption and biotransformation proved to be the most efficient method for TNT removal from pink water. The type of applied inoculum had a profound effect on TNT removal efficiencies and microbial community structures, which were dominated by phylotypes belonging to the Enterobacteriaceae family. The analysis of acetonitrile extracts of pine bark supported the hypothesis that the microbial community indigenous to pine bark has the ability to degrade TNT.

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The adsorption of heavy metal by Bornean oil palm shell and its potential application as constructed wetland media

Cited by 90 publications

References 30 publications

Sulfonated modification of cotton linter and its application as adsorbent for high-efficiency removal of lead(II) in effluent

Sulfonated modification of cotton linter and its application as adsorbent for high-efficiency removal of lead(II) in effluent

Mechanical and thermal characterization of polyester composite containing treated wood flour from Palm oil biomass

Biotransformation of pink water TNT on the surface of a low-cost adsorbent pine bark

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