Q$5.(4$ pt$)$ Granular Activated Carbon GAC was to remove Toluene from wastewater. The following adsorption data were obtained in the laboratory using GAC as adsorbent

a$)$ Determine the maximum adsorbent phase concentration of adsorbate $Q_{\text{m}\text{a}\text{x}}$

b$)$ Estimate the adsorption constant $K_{ad}$

c$)$ What is the concentration of GAC $(\frac{g}{m}g)$ needed to remove $40m\frac{g}{l}$ of Toluene to reach a min of $4m\frac{g}{l}.$