不同预处理条件对海水养殖场有机废弃物发酵产氢的影响

he utilization of mariculture organic waste for anaerobic hydrogen fermentation could reduce organic pollutant and obtain clean energy hydrogen simultaneously In this study, mariculture organic waste was used for hydrogen production, and the effect of different pretreatments of solubilization by thermophilic enzyme（S-TE）, acid, alkaline, sterilized, and microwave on mariculture organic waste hydrogen production was also investigated. The efficiency of these pretreatments and profiles of soluble COD, protein carbohydrate, pH value, VFAs and ethanol during fermentation were also monitored. The results showed that the maximum hydrogen yield was 22.0 mL/goVSS, which was obtained from sterilization pretreatment. Whereas the minimum hydrogen yield of 7.6 mL/goVSS was obtained from acid pretreatment. Soluble carbohydrate was the main nutrient resource for hydrogen production, the fermentation was stopped after the carbohydrate was largely consumed. The main composition of VFAs was acetic acid, and ethanol was produced at the end of fermentation, which suggested the present of solvation during fermentation. More nutrient could be released from mariculture organic waste after S-TE pretreatment, and the pH value was remained stable during the fermentation.