Lu Li-An, Kumar Mathava, Tsai Jen-Chieh, Lin Jih-Gaw
Institute of Environmental Engineering, National Chiao Tung University, 75 Po-Ai Street, Hsinchu 300, Taiwan.
Bioresour Technol. 2008 May;99(7):2210-7. doi: 10.1016/j.biortech.2007.05.030. Epub 2007 Jul 2.
The feasibility of high-rate composting of barley dregs and sewage sludge was examined using a pilot scale bioreactor. A central composite design (CCD) was used to optimize the mix ratio of barley dregs/sewage sludge and moisture content. The performance of the bioreactor was monitored as a function of carbon decomposition rate (CDR) and total volatile solids (TVS) loss rate. The optimum range of mix ratio and moisture content was found to be 35-40% and 55-60%, respectively. High CO2 evolution rate (CER) and TVS loss rate were observed after 3 days of the composting and the compost was matured/stable after 7 days. Cardinal temperature model with inflection (CTMI) was used to analyze the compost stability with respect to CER as a parameter of composting efficiency. After examining the phytotoxicity, the compost can be promoted for land application.
使用中试规模的生物反应器研究了大麦渣与污水污泥高速堆肥的可行性。采用中心复合设计（CCD）优化大麦渣/污水污泥的混合比例和水分含量。根据碳分解率（CDR）和总挥发性固体（TVS）损失率监测生物反应器的性能。发现混合比例和水分含量的最佳范围分别为35-40%和55-60%。堆肥3天后观察到高二氧化碳释放率（CER）和TVS损失率，7天后堆肥成熟/稳定。采用带拐点的基本温度模型（CTMI），以CER作为堆肥效率参数分析堆肥稳定性。在检测了植物毒性后，可推广该堆肥用于土地施用。
