2). Comparison of reactor configurations (40 pt) You work for a UN development agency. You are building system on limited land space to treat a wastestream of flow Q. so you are trying to get the most treatment for the least tank size. one large square tank of volume 4V (Config. A), or have four smaller square tanks of equal size (V). For the 4 tank configuration, you can either arrange them as 4 parallel trains of 1 tank (Config. B), 2 parallel trains of 2 tanks in series (Config C), or one train of 4 tanks in series (Config D). a wastewater treatment Concrete is expensive, You can either use Given a first order removal rate of k= 0.5 d¹, V=50 m³, Q=10m³/d, which configuration would give you the best overall removal? For each configuration,

Fig: 1