Table 1.

Uncertainty analysis for NEBs associated with the resource recovery approach for WWTPs

Weighting coefficient	Developed countries								Developing countries
	Scenario 1		Scenario 2		Scenario 3		Scenario 4		Scenario 1		Scenario 2		Scenario 3		Scenario 4
	ROCC	CTV, %	ROCC	CTV, %	ROCC	CTV, %	ROCC	CTV, %	ROCC	CTV, %	ROCC	CTV, %	ROCC	CTV, %	ROCC	CTV, %
GHG emissions	−0.62	24.8	−0.69	25.6	−0.70	26.3	−0.70	26.6	−0.71	38.3	−0.76	35.6	−0.75	39.4	−0.89	49.3
Energy consumption	−0.46	13.7	−0.63	21.4	−0.64	22.0	−0.63	21.6	−0.20	3.0	−0.44	11.9	−0.34	8.1	−0.35	7.6
Chemical use	0.01	0.0	0.07	0.3	0.04	0.1	−0.01	0.0	−0.20	3.0	−0.02	0.0	−0.18	2.3	−0.23	3.3
Bioenergy recovery	0.76	37.3	0.96	49.6	0.96	49.5	0.95	49.0	0.68	35.2	0.89	48.8	0.82	47.1	0.80	39.8
Sludge recycling	0.06	0.2	0.10	0.5	0.10	0.5	0.12	0.8	0.09	0.6	0.15	1.4	0.16	1.8	0.00	0.0
Struvite capture	0.61	24.0	0.22	2.6	0.17	1.6	0.19	2.0	0.51	19.8	0.19	2.2	0.14	1.4	0.00	0.0

CTV, contribution to variance; ROCC, Spearman’s rank-order correlation coefficient.