Table 1.

Fourteen groups of literature data on anaerobic digestion with human feces as substrate.

Substrates	TSa (g/L)	VSb(g/L)	VS/TS (%)	MPc(L/gVS)	Reference
Fresh feces	67.1	55.3	82.4	0.36	Kim et al. (2019)
Top layer feces in dry toilet	67	52.6	78.5	0.243	Wang et al. (2020)
Blackwater	4.4	3.8	86.4	0.26–0.3	Rajagopal et al. (2013)
Fresh feces	219.5	179	81.5	0.177	van Eekert et al. (2019)
Fresh feces	245	201	82.0	0.271	Riungu et al. (2019)
Feces sludge in septic tanks	12	8.54	71.2	0.299	Chatterjee et al. (2019)
Fresh feces	3.2	2.6	81.3	0.449	Zhang et al. (2019)
Blackwater	4.5	2.83	62.9	0.22	Giwa et al. (2021)
Fresh feces	150	130.5	0.87	0.471	Zhang et al. (2017)
Blackwater	145.6	128	87.9	0.327	Duan et al. (2020)
Fresh feces	47.94	35.48	74.0	0.402	Zuo et al. (2021)
Brown water	3.45	2.85	82.6	0.16	Lavagnolo et al. (2017)
Human excreta	15.5	10.1	65.2	0.122	Sun et al. (2017)
Blackwater	NR	4.5	NR	0.124	Wendland et al. (2007)

Note.

^aTotal solid (TS).

^bVolatile solid (VS).

^cMethane production (MP).