Pollutant Removal from Wastewater at Different Stages of the Tanning Process by Electrocoagulation

Figure 7

Removal of COD and TOC for an EC process with different amounts of iron or aluminium adsorbent. Conditions: pH 7.0; S2 (a), S3 (b), and S4 (c) wastewater; electrolysis time = 60 min.

(a)

(b)

(c)