Scavenging microplastics and heavy metals from water using jujube waste-derived biochar in fixed-bed column trials

Ahmad, Munir; Lubis, Nahrir M. A.; Usama, Muhammad; Ahmad, Jahangir; Al-Wabel, Mohammad I.; Al-Swadi, Hamed A.; Rafique, Muhammad Imran; Al-Farraj, Abdullah S.

doi:10.1016/j.envpol.2023.122319

Cited by 25 publications

(9 citation statements)

References 44 publications

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“…Composites of BC with PE and PA strongly influence P adsorption, and the highest P adsorption was found with BC-PA (93.23 mg g −1 ), BC-PE (86.81 mg g −1 ), and BC (54.08 mg g −1 ) (Table 3). The highest P sorption by BC-PA could be due to the positive surface charge on PA, which generated more positive ions on the BC surface and showed strong electrostatic interactions between P ions and BC, while comparatively low adsorption was found in BC, which could be due to net negative surface charge and repulsion between P ions and BC [34]. On the other hand, BC-PE (103.76 mg g −1 ) showed the highest sorption capacity for NH 4 + ions, followed by BC (79.64 mg g −1 ) and BC-PA (85.83 mg g −1 ).…”

Section: Equilibrium Batch Studies Isothermmentioning

confidence: 97%

“…Polyamide (PA) pellets and polyethylene (PE) beads were crushed and ground using a cryogenic grinding process into smaller pieces and stored in a deep freezer [34]. Later on, the suspended plastic particles were collected in a glass beaker and dried.…”

Section: Microplastics Preparationmentioning

confidence: 99%

“…On the other hand, the pHpzc of BC was 10.01, indicating a net positive charge on the surface of BC [43]. Thus, the development of attractive forces between negatively charged P species and positively charged BCs has resulted in the highest removal of P. Moreover, the highest sorption of P by BC-PA could also be due to positively charged PA particles, which aided BC for P sorption, whereas PE particles were negatively charged and showed comparatively lower sorption than PA [34].…”

Section: Characterization Of Bcmentioning

confidence: 99%

“…Generally, the removal of P and NH 4 + through BC-based sorbents is followed by electrostatic interactions, ligand exchange, complex formation, precipitation, physio sorption, and ion exchange [45]. However, to improve the performance of BC for both cationic and anionic species, researchers are modifying BC via various physical, chemical, biological, and mechanical means [34]. The combination of BC and MPs could enhance the performance of BC for P and NH 4 + removal from aqueous solution by improving the surface functional groups, surface area, surface charges, and porosity.…”

Section: Kinetic Sorption Trialsmentioning

confidence: 99%

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Microplastic-Assisted Removal of Phosphorus and Ammonium Using Date Palm Waste Derived Biochar

Ahmad,

Rafique,

Akanji

et al. 2023

Toxics

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Microplastics (MPs) are emerging environmental pollutants worldwide, posing potential health risks. Moreover, MPs may act as vectors for other contaminants and affect their fate, transport, and deposition in the environment. Therefore, efficient and economical techniques are needed for the removal of contemporary MPs and contaminants from the environment. The present research study investigated the sorption of phosphorus (P) and ammonium (NH4+) onto date palm waste-derived biochar (BC) from an aqueous solution in the presence of polyamide (PA) and polyethylene (PE) MPs. The BC was prepared at 600 °C, characterized for physio-chemical properties, and applied for P and NH4+ removal via isotherm and kinetic sorption trials. The results of the sorption trials demonstrated the highest removal of NH4+ and P was obtained at neutral pH 7. The highest P sorption (93.23 mg g−1) by BC was recorded in the presence of PA, while the highest NH4+ sorption (103.76 mg g−1) was found with co-occurring PE in an aqueous solution. Sorption isotherm and kinetics models revealed that P and NH4+ removal by MP-amended BC followed chemisorption, electrostatic interaction, precipitation, diffusion, and ion exchange mechanisms. Overall, co-existing PA enhanced the removal of P and NH4+ by 66% and 7.7%, respectively, while co-existing PE increased the removal of P and NH4+ by 55% and 30%, respectively, through the tested BC. Our findings suggested that converting date palm waste into BC could be used as a competent and economical approach to removing P and NH4+ from contaminated water. Furthermore, microplastics such as PE and PA could assist in the removal of P and NH4+ from contaminated water using BC.

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Section: Equilibrium Batch Studies Isothermmentioning

confidence: 97%

Section: Microplastics Preparationmentioning

confidence: 99%

Section: Characterization Of Bcmentioning

confidence: 99%

Section: Kinetic Sorption Trialsmentioning

confidence: 99%

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Microplastic-Assisted Removal of Phosphorus and Ammonium Using Date Palm Waste Derived Biochar

Ahmad,

Rafique,

Akanji

et al. 2023

Toxics

Self Cite

View full text Add to dashboard Cite

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“…In addition, BC can change the soil properties, and the interaction with soil components (either mineral or organic components) can also change BC's properties and effect its capacity for removing MPs and other pollutants [100]. Other factors can also affect BC's efficiency in MP removal; Ahmed et al [101] reported that the retention of MPs by BC is enhanced by increasing the pyrolysis temperature of BC. As well, with time, the retention of MPs by BC is increased, due to entrapping the MPs in the pore spaces of BC or, as reported in Shang and Chi [100], MPs can aggregate with BC by the formation of physical trapping or chemical surface complexes.…”

Section: Biochar Application In Microplastic Remediationmentioning

confidence: 99%

Addressing the Microplastic Dilemma in Soil and Sediment with Focus on Biochar-Based Remediation Techniques: Review

Elbasiouny,

Elbehiry

2023

Soil Systems

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Microplastic (MP) pollution is a widespread global environmental concern, representing an emerging contaminant with major implications for ecosystems and human well-being. While extensive research has focused on MPs in aquatic environments, their impact on sediments and soils remains inadequately explored. Studies have confirmed the harmful effects of MPs on soil and sediment biota, as well as on the properties of these ecosystems. Furthermore, the long-term persistence of MPs within the environment contributes to their accumulation in terrestrial and marine food chains, with potential consequences for groundwater quality. Although several methods have been applied to mitigate MP pollution, some methods have drawbacks and some are not studied well, necessitating the urgent exploration of novel, sustainable, and eco-friendly approaches. Biochar is a remarkable solution for pollution removal; recently it has been used in addressing the increasingly concerning issue of microplastic contamination. This review aims to shed light on the difficulty posed by MPs in soils and sediments, while highlighting the remediation methods and the potential advantages of utilizing BC as an environmentally friendly solution for MP removal and remediation.

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Environmental effects from petroleum product transportation spillage in Nigeria: a critical review

George,

Nawawi,

Mohd

et al. 2023

Environ Sci Pollut Res

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Scavenging microplastics and heavy metals from water using jujube waste-derived biochar in fixed-bed column trials

Cited by 25 publications

References 44 publications

Microplastic-Assisted Removal of Phosphorus and Ammonium Using Date Palm Waste Derived Biochar

Microplastic-Assisted Removal of Phosphorus and Ammonium Using Date Palm Waste Derived Biochar

Addressing the Microplastic Dilemma in Soil and Sediment with Focus on Biochar-Based Remediation Techniques: Review

Environmental effects from petroleum product transportation spillage in Nigeria: a critical review

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