“Emerging contaminants” — heavy metals, pesticides, pharmaceuticals and dyes — are an increasing threat to water supplies. This systematic review in the Journal of Water Process Engineering evaluated how effectively Moringa oleifera removes them.
The authors searched four databases and analysed 51 eligible studies published between 2010 and 2021, examining adsorbent modifications, adsorption capacity, and the kinetic and thermodynamic models involved.
Key findings
- Moringa is confirmed as an effective biosorbent for heavy metals, pesticides, pharmaceuticals and dyes.
- Adsorption best fit the Langmuir isotherm in most studies (74.5%).
- The pseudo-second-order kinetic model applied in 90.2% of cases.
Caveat: a review synthesising others’ work; consult the cited primary studies for specific contaminant figures.
Summary of: (2022). “Removal of contaminants from water using Moringa oleifera: a review.” Journal of Water Process Engineering. DOI: 10.1016/j.jwpe.2022.102576. Summarised by MORIFA; full paper via the link above.