Table 2.

Average toilet wastewater composition in the different prototypes. Ranges are given when available

Parameter	Unit	Prototype reference
		PASa	AMDb	KYMc	YXGc
COD	mg O2 L−1	150–250	100	335	550
Cl−	mmol L−1	11–20	11	15	24
NH3 + NH4+	mg NH3 L−1	80	30–40	235	480
PO43− + HPO42-	mmol L−1	0.64		—	—
Alkalinity as CaCO3	mmol L−1	17	—	10.7	27
pH	—	8.3	7.4	7.5	8.5

^aAfter 16 months of collection and 6 months of recycling water.

^bNo recycled water used.

^cAfter 2 months of running.