Abstract This study investigated the performance of composting cornstalks after used as the filtering materials for the pretreatment of anaerobically digested manure centrate. Results show that cornstalks could effectively remove suspended solids and organic matter in digested centrate. Direct composting of the used cornstalks could be achieved. The composting temperature increased rapidly and maintained at the thermophilic phase for more than 10 days. During 28 days of composting, the used cornstalks could be mature as indicated by the matrix pH of 7.37, electrical conductivity of 1.13 mS/cm, and germination index of higher than 100%. During composting, the carbon/nitrogen ratio of the used cornstalks decreased from 16.81 to 13.62. Moreover, cellulose in the used cornstalks was degraded by approximately 35.4% during composting.

中文翻译：

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用作过滤材料的玉米秸秆堆肥厌氧消化浓缩液的预处理

摘要 本研究考察了玉米秸秆用作厌氧消化粪污预处理过滤材料后的堆肥性能。结果表明，玉米秸秆能有效去除消化浓缩液中的悬浮物和有机物。可以实现使用过的玉米杆的直接堆肥。堆肥温度迅速升高，并在高温阶段保持10天以上。在28天的堆肥过程中，使用过的玉米秸秆可以成熟，基质pH值为7.37，电导率为1.13 mS/cm，发芽指数高于100%。在堆肥过程中，使用过的玉米秸秆的碳氮比从 16.81 下降到 13.62。此外，在堆肥过程中，使用过的玉米秸秆中的纤维素降解了约 35.4%。