Anaerobic digestion, a promising technology for waste utilization and bioenergy generation, is a suitable approach to convert the shrimp waste to biomethane, reducing its environmental impact. In this study, shrimp chaff (SC) was co-digested corn straw (CS), wheat straw (WS), and sugarcane bagasse (SB). In co-digestion, SC enhanced biomethane production of CS by 8.47-fold, followed by SC+WS 5.67-folds, and SC+SB 3.37-folds. SC addition to agricultural biomass digestion also promoted the volatile solids removal upto 85%. Microbial community analysis of SC and CS co-digestion presented the dominance of phylum Bacteroidetes, Firmicutes, Proteobacteria, and Euryarchaeota. Proteolytic bacteria were dominant (18.02%) during co-digestion of SC and CS, with Proteiniphilum as major bacterial genera (14%) that converts complex proteinaceous substrates to organic acids. Among the archaeal community, Methanosarcina responsible for conversion of acetate and hydrogen to biomethane, increased upto 70.77% in SC and CS digestion. Addition of SC to the digestion of agricultural wastes can significantly improve the biomethane production along with its effective management to reduce environmental risks.

厌氧消化是一种有前途的废物利用和生物能源产生技术，是一种将虾类废物转化为生物甲烷，减少其环境影响的合适方法。在这项研究中，虾壳（SC）是玉米秸秆（CS），小麦秸秆（WS）和甘蔗渣（SB）共同消化的。在共消化中，SC将CS的生物甲烷产量提高了8.47倍，其次是SC + WS 5.67倍和SC + SB 3.37倍。除农业生物质消化外，SC还促进了挥发性固体的去除率高达85％。SC和CS共同消化的微生物群落分析提出门的主导地位拟杆菌，厚壁菌门，变形菌，和广古菌门。在SC和CS以及Proteinphilum共同消化过程中，蛋白水解细菌占主导地位（18.02％）作为主要细菌属（14％），可将复杂的蛋白质底物转化为有机酸。在这些古细菌界，甲烷负责乙酸和氢气转化成生物甲烷，在SC和CS消化增加高达70.77％。在农业废弃物的消化过程中添加SC可以显着改善生物甲烷的生产，并对其进行有效管理以降低环境风险。