Nanocomposite Materials for Wastewater Decontamination

Tauqeer, Mohd.; Ahmad, Masood; Siraj, Muhammad; Mohammad, Akbar; Ansari, Omar; Baig, Mirza Talha

doi:10.1007/978-3-030-08283-3_2

Cited by 5 publications

(1 citation statement)

References 184 publications

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“…In spite of that, many of these methods are expensive (Koffi and Okabe, 2020). Otherwise, introducing low-cost materials of high sorptivity might be the optimum choice for water decontamination (Tauqeer et al, 2020). For example, biochar (Zheng et al, 2020) can effectively remove PTEs from contaminated waters within short time periods (Senthilkumar et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Biochar applications for treating potentially toxic elements (PTEs) contaminated soils and water: a review

Zhang,

Zou,

Chu

et al. 2023

Front. Bioeng. Biotechnol.

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Environmental pollution with potentially toxic elements (PTEs) has become one of the critical and pressing issues worldwide. Although these pollutants occur naturally in the environment, their concentrations are continuously increasing, probably as a consequence of anthropic activities. They are very toxic even at very low concentrations and hence cause undesirable ecological impacts. Thus, the cleanup of polluted soils and water has become an obligation to ensure the safe handling of the available natural resources. Several remediation technologies can be followed to attain successful remediation, i.e., chemical, physical, and biological procedures; yet many of these techniques are expensive and/or may have negative impacts on the surroundings. Recycling agricultural wastes still represents the most promising economical, safe, and successful approach to achieving a healthy and sustainable environment. Briefly, biochar acts as an efficient biosorbent for many PTEs in soils and waters. Furthermore, biochar can considerably reduce concentrations of herbicides in solutions. This review article explains the main reasons for the increasing levels of potentially toxic elements in the environment and their negative impacts on the ecosystem. Moreover, it briefly describes the advantages and disadvantages of using conventional methods for soil and water remediation then clarifies the reasons for using biochar in the clean-up practice of polluted soils and waters, either solely or in combination with other methods such as phytoremediation and soil washing technologies to attain more efficient remediation protocols for the removal of some PTEs, e.g., Cr and As from soils and water.

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