The initial volatile suspended solid (heat pretreated sludge) concentration of the seed inoculum was 4.3 g/L. The food waste hydrolysate was filtered by 0.2 lm PTFE membrane filter before adding to the fermentor.
The initial volatile suspended solid (heat pretreatedsludge) concentration of the seed inoculum was 4.3 g/L. The foodwaste hydrolysate was filtered by 0.2 lm PTFE membrane filterbefore adding to the fermentor.