Two-phase Methane Fermentation Characteristics of Garbage Using an Aerobic Solubilization Process:—Evaluation of the Aerobic Solubilization Process—

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We evaluated the aerobic solubilization level and the application of two-phase methane fermentation in a two-phase methane fermentation system that uses an aerobic solubilization process to treat food wastes and garbage. Since the average particle diameter was 86μm, we found that the aerobic solubilization process was the same level as other solubilization methods. By comparing the microbial activities of the aerobic solubilization and acidification effluents in a batch test, we observed that the biogas and methane gas production and the methane gas content of the latter effluent were more than those of the former effluent. When garbage is processed using the aerobic solubilization process, a two-phase methane fermentation is more efficient than a single-phase one. As a result of investigating the microflora using the PCR-DGGE method, the microbes in the aerobic solubilization differed from those in the acidification, and it also became clear that there was co-metabolism between the microbes in each one.
一般社団法人廃棄物資源循環学会の論文