Hong Huyen CT, Thi Hong N, Thu Huyen N. Study On Factors Affecting the Adsorption Performance of Municipal Solid Waste-Derived Biochar for Pb²⁺ And Cr⁶⁺ Removal from Aqueous Solutions. etj [Internet]. 2026 Jun. 30 [cited 2026 Sep. 28];11(06):10768-673. Available from: https://everant.org/index.php/etj/article/view/2923