One Material of Biomass Fertilizer: Biogas Residue

Through biogas fermentation, labile elements in the organic matters could be transformed into methane. The left biogas fluid contains durable lignin, fibrin and salts. It could be sprayed into field directly or it can be dewatered first, then it will become compost fertilizer. At last but not least, on the respect of processing organic waste into useful resource, we advocate to conduct biogas fermentation first, and then to compost the fermentation waste. This kind of process can improve the use ratio of organic waste.