Availability of a catalyst for Gobar (dung) Gas/Biogas to speed-up fermentation?

Question

Is there any catalyst to speed-up fermentation process? I understand that if we have high temperature, fermentation is fast but at room temperatures, or even at 120 +/- degree F temperatures, it is taking about a week. I wonder is there any catalyst we can use to speed-up the process?

Answer 1

Make a slurry of the gobar. Add pond water. That works best.