I agree.  There is no justification from a health risk perspective, or treatment cost perspective, for segregating greywater from blackwater for the purpose of water reclamation and reuse.  The same technologies are used for both mixed wastewater and greywater, including the need for disinfection.

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I agree.  There is no justification from a health risk perspective, or treatment cost perspective, for segregating greywater from blackwater for the purpose of water reclamation and reuse.  The same technologies are used for both mixed wastewater and greywater, including the need for disinfection.