שאלה | Can the nutrients in domestic wastewater partly replace the use of fertilizers for crops?

Can the nutrients in domestic wastewater partly replace the use of fertilizers for crops?

		Never; wastewater is polluted and, even after treatment, cannot be used to grow crops.
		One cannot be certain as domestic wastewater varies significantly in quality and quantity.
		Nutrients in domestic wastewater can replace commercial fertilizer, often even without treatment, particularly if ornamental plants are irrigated.
		Nutrients in adequately treated domestic wastewater can replace commercial fertilizer.