No, chemically engineered biochar and chemically modified biochar are not the same terms.
Chemically engineered biochar refers to biochar that has been intentionally modified through chemical processes to enhance its properties or functionality. This modification can involve the introduction of specific chemicals or additives to alter the biochar's surface chemistry, pore structure, or other characteristics. The goal of chemically engineering biochar is to tailor its properties for specific applications, such as environmental remediation or water treatment.
On the other hand, chemically modified biochar is a broader term that encompasses any form of biochar that has undergone chemical modifications. This includes both chemically engineered biochar and biochar that has been modified through other means, such as impregnation with chemicals or surface treatments.
In summary, chemically engineered biochar refers specifically to biochar that has been intentionally modified through chemical processes, while chemically modified biochar is a broader term that encompasses any form of biochar that has undergone chemical modifications, regardless of the specific method used.