Yeah. Kinda like the recycling plastic is a rluze. They do not recycle plastics. That biomass stuff cost more than just using fossil fuels. Way more in wvery way..Just like wind and solar with net zero benefits.. But, im all for it, keep on the info and experimentation.
For normal sludge from wastewater treatment, the nitrogen concentration is not so high that this system is needed. It can be digested without the special step of ammonia reduction before the digesters.