When talking about small scale waste water recycling, I have heard that you cannot use black water…?
BLACK WATER If it was straight onto the food production it can transmit diseases or parasites etc.and contaminates the produce But not if it was filtered , in the Permaculture designer Manual you will find detailed drawings on how to build sewage (black water filters , From another tank the water goes in a pipe coming in from the bottom of a small dam or large container pushing its way up through ,stones ,then gravel followed by sand , aquatic plants on the top complete the filter (to remove metals). Black water irrigation How ever black water straight contains to many organisms to be ever safe like they do around Mexico city I once stayed in a village which got their vegetables from this agriculture . the people washed their potatoes in detergent ,ridiculous (potatoes are absorbent ) and more than half of the village was sick with stomach complaints ,(according to the doctors) So that is not a recommendation , In China they use what is called night soil , human excrement straight on t
