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1.2 Consider a well stirred for photoassisted biodegradation process shown in the Figure 1 below: 870 97 1. Feed Holding Tank 2. Feed pump 3. Recycle Pimp 4 Etient Tank 5.OW UV Lamp 6. 26. IL Photoassisted chamber 7 Starter 8.38 3. Biological reactor Figure 1: Photoassisted biodegradation process (a) What deduction can you make given that the reactors are continuously stirred? (3) (b) Discuss environmental, safety and economic considerations for Figure 1 (6) (c) How is process control mostly documented? (4)