Skip to main content
Log in

Removal of organic pollutants from wastewater using chitosan: a literature review

  • Review
  • Published:
International Journal of Environmental Science and Technology Aims and scope Submit manuscript

Abstract

The production of organic effluents derives from several industry areas, and the increase of this production accompanied those industries growth. The components of those effluents have high toxicity, which may cause serious damages to the affected environment. For this reason, the research for alternative materials (derived naturally or from industrial residues) for wastewater treatment has increased. Thus, biopolymers, such as chitosan, are a sustainable alternative, since they come from renewable and biodegradable sources. Chitosan has properties, such as adsorption capacity and flocculation and coagulation abilities, which allow it to replace, partially or completely, synthetic materials. Several methods have been applied for the treatment of those organic effluents in order to achieve their maximum limit for wastewater disposal or reuse set in each country. Among those treatments, adsorption can be considered the most advanced and efficient for residual treatment, removing selectively several organic compounds. Therefore, this paper reviewed the applicability of chitosan in phenol and oil removal from industrial effluents. Several authors highlighted its use as an environmentally friendly alternative, once chitosan presented a pollutant removal capacity similar or even better than those commonly used materials. The majority of the studies reviewed indicated the best condition for adsorptive capacity of natural or modified chitosans at acidic pH, due to the great influence of the electrostatic attraction mechanism. In addition, the review encourages further researches for more in-depth studies such as those of mechanism of adsorption, simultaneous pollutant adsorption and industrial-scale process.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1 
Fig. 2 

Similar content being viewed by others

References

Download references

Acknowledgments

The authors are grateful to CNPq and UFBA for financial support.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to R. R. L. Vidal.

Additional information

Editorial responsibility: M. Abbaspour.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Vidal, R.R.L., Moraes, J.S. Removal of organic pollutants from wastewater using chitosan: a literature review. Int. J. Environ. Sci. Technol. 16, 1741–1754 (2019). https://doi.org/10.1007/s13762-018-2061-8

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s13762-018-2061-8

Keywords

Navigation