3.6. Key components and adsorption mechanism of adsorbent
In order to know the mechanism of Cd2 + adsorption and determine key components of the adsorbent in the process of Cd2 + adsorption, some kinds of artificial sludge were prepared according to the Miyamachi DWTP process. Visually, the characteristics of the artificial sludge were similar with the original sludge of DWTP. Fig. 7 shows the surface of the artificial sludge based on the SEM image where the structure of the surface area was similar to the surface of sludge from Miyamachi DWTP.