In epTAS systems for indoor application in vertically integrated buildings, wastewater is independently
collected in separate gray and black water networks-epVAC.VIS. Black water can be disposed into
the public sewer line, while gray water can be treated in wastewater treatment plant epSBRc, epMBR or epSTffc, then reused for domestic non-potable water applications (toilet flushing, fire fighting, floor
cleaning,……etc.). Wastewater will be subject to double disinfection (chlorination & ultraviolet) & ultra filtration prior to reuse. Black water can be treated in a separate wastewater treatment plant for reuse in irrigation as well.
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