• Recent trends in the use of biopolymers for remediation of heavy metals are reviewed. • Biopolymers include alginate, cellulose and lignin. • Reusability is discussed. • Reuse applications of the spent adsorbents are made. • Recommendations for reuse of spent adsorbents in latent fingerprint detection are made.

The presence of pollutants in large swaths of water is among the most pressing environmental issues of our time. This is mainly due to the inappropriate disposal of industrial sewerage into nearby water supplies and the production of a broad range of potentially hazardous contaminants. Pineapple is a fruit mainly grown in tropical regions. Refuse production begins with the collection of raw materials and continues prior to being refined. Pineapple processing industries generate waste (peel, core, pomace, and crown) that is high in bioactive compounds. The byproducts often include more valuable compounds with greater nutritional and therapeutic value than the final product. This review focuses on the application of pineapple and components, adsorbent synthesized from pineapple for the removal of pollutants.