A start-up of psychrophilic anaerobic sequence batch reactor digesting a 35 % total solids feed of dairy manure and wheat straw

AMB Express

Table 1 Organic loading rate and total solids of the feed

Cycle	Feces (kg)	Straw (kg)	ISR (VS-based ratio)	Organic loading Organic loading rate
Cycle	Feces (kg)	Straw (kg)	ISR (VS-based ratio)	TCOD fed (g)	VS fed (g)	g TCOD substrate kg⁻¹ inoculum day⁻¹	g VS substrate kg⁻¹ inoculum day⁻¹
1	0.70	0.30	4.47	378	334.8	3.0	2.66
2	0.635	0.259	4.06	378	295.7	3.0	2.35
3	0.545	0.252	4.30	378	279.1	3.0	2.22
4	0.567	0.259	4.18	378	287.1	3.0	2.28
5	0.567	0.259	4.18	378	284.2	3.0	2.26
6	0.567	0.259	4.18	378	284.2	3.0	2.26
7	0.606	0.247	4.32	378	278.4	3.0	2.28
8	0.606	0.247	4.32	378	277.8	3.0	2.20
9	0.606	0.247	4.32	378	277.8	3.0	2.20
10	0.634	0.217	4.36	378	275.1	3.0	2.18
11	0.634	0.217	4.36	378	275.1	3.0	2.18

In all cycles the reactors have been inoculated with 6 kg of culture which has been transferred from the previous cycle. The feed TS has been kept at 35 % in all cycles