Figure 5. The relative abundance of CHO, CHON, CHOS, and CHONS in the raw water and MHC coagulated water (a). Van Krevelen diagrams of CHON of the raw water (b) and MHC coagulated water (c) with dosage of 0.8 mmol/L as total Fe. Colored dots express the relative abundance. The black lines in Van Krevelen diagrams divide CHON to seven major classes. The bar diagram shows the relative abundance of seven classes of CHON in the raw water and MHC coagulated water (d).