Crustacean nanochitosan-based bioremediation of nanoplastic-polluted aquatic habitat: A review pursuant to SDG 6
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ScienceDirect
Abstract
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Microplastic and nanoplastic pollution is a growing environmental concern with
potentially adverse effects on ecosystems and human health. The development of
effective and sustainable methods for the removal of micro-/nanoplastics from water
sources is of paramount importance. Crustacean nanochitosan, derived from chitosan,
a biopolymer obtained from crustacean shells, has emerged as a promising solution for
micro-/nanoplastic removal. This scientific abstract presents an overview of the
application of crustacean nanochitosan for micro-/nanoplastic removal, highlighting its
unique properties, adsorption mechanism, and potential advantages over other
methods. Though the unique properties of crustacean nanochitosan that enable it to
adsorb, bind, immobilize and effectively reduce contamination have been demonstrated,
complex scalability, regeneration and cost effectiveness issues still hinder the
adaptation of this technology in pursuit of SDG 6. The report thus addressed key factors
necessary for the optimization of the purification mechanisms of nanochitosan. The
integration of crustacean nanochitosan into water treatment systems thus offers a
promising approach for mitigating micro-/nanoplastic pollution, hence the paper
explored new research paths, highlighting nanochitosan modification, optimization of
process parameters such as pH, contact time, dosage, and agitation speed for
enhanced adsorption efficiency for healthier ecosystems; towards the attainment of
sustainable development goal 6 aimed at achieving clean water and sanitation.
Regeneration, reusability, scale-up and the scalability of the suggested technology were
assessed and the cost-effectiveness, system integration, and long-term performance
under varying water conditions were reported. The paper evaluated the effectiveness of
the suggested techniques, and assessed the possible environmental impacts and
implications for policies.
Keywords
QH Natural history, QH301 Biology, QR Microbiology