Minimization of Waste from the Separation and Recycle System

2 Minimization of Waste from the Separation and Recycle System 

Waste also can be minimized if the separation system can be made more efiicient such that useful materials can be separated and recycled more effectively. 

Waste from the separation and recycle system can be minimized in five ways  

Although this is generally the sequence in which the five actions would be considered, this sequence will not always be correct. The best sequence in which to consider the five actions will depend on the process. The magnitude of effect each action will have on waste minimization will vary for different processes. 

Recycle waste streams directly. Sometimes waste can be reduced by recycling waste streams directly. If this can be done, it is clearly the simplest way to reduce waste and should be considered first. Most often, the waste streams that can be recycled directly are aqueous streams which, although contaminated, can substitute part of the freshwater feed to the process. 

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