“…The results demonstrate that the Langmuir model is suitable to explain the sorption behaviour of Cu and Pb onto SBIO, and the adsorption capacity (Q max , Langmuir model) for Pb (635.7 mg/g) is much higher than for Cu (52.8 mg/g) at a given temperature. Sludge 31 Shell 45 (Elaigwu et al, 2014) Cow manure 230 (Kołodyńska et al, 2012) Dairy manure 140 (Cao et al, 2009) Sugar cane 87 (Abdelhafez and Li, 2016) Orange peel 28 (Abdelhafez and Li, 2016) Pinewood 4 (Liu and Zhang, 2009) Begass 135 (Inyang et al, 2011) Peanut shells 350 (Guocheng, 2014) Rraditional Chinese medicine waste 400 (Guocheng, 2014) Peanut straw 50 (Tong et al, 2011b) Soybean straw 33 (Tong et al, 2011b) Seed 27 (Mahdi et al, 2018) Spartina alterniflora 48 (Li et al, 2013) Cow manure 54 (Xu et al, 2013) Pinewood 4 (Liu et al, 2010) Pinewood 3 (Liu et al, 2010) Raw farmyard manure 39 (Batool et al, 2017) poultry manure 43 (Batool et al, 2017) Sawdust 655 55 In this study The C DGT can be measured from the following equation:…”