Characteristics and Applications of Sewage Sludge Biochar Modified by Ferrous Sulfate for Remediating Cr(VI)-Contaminated Soils

<div>Picture of sewage sludge and CHBC. (a) Sewage sludge. (b) CHBC.</div>

Advances in Civil Engineering

Figure 2: Characteristics and Applications of Sewage Sludge Biochar Modified by Ferrous Sulfate for Remediating Cr(VI)-Contaminated Soils 