In the case of the question about: How to remove harmful substances from water with the help of biochar? The efficient separation of biochar or other adsorbents from the treated solutions is a challenge.

Adsorption is a widely used technique for the removal of pollutants in liquid or gaseous effluents.

Among the proposed adsorbent materials, biochar is considered a low-cost effective adsorbent.

Magnetic separation method is an efficient, fast and low-cost technique for the recovery and the reuse of adsorbents from the medium after the adsorption treatment of pollutants is completed.

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