Sellami F, Jarboui R, Hachicha S, Medhioub K, Ammar E
Ecole Nationale d'Ingénieurs de Sfax, UR Etude et Gestion des Environnements Urbains et Côtiers, LARSEN, BP W, 3038 Sfax, Tunisia.
Bioresour Technol. 2008 Mar;99(5):1177-88. doi: 10.1016/j.biortech.2007.02.018. Epub 2007 Apr 11.
The co-composting of exhausted olive-cake with poultry manure and sesame shells was investigated. These organic solid wastes were watered by the confectionary wastewater which is characterized by its high content of residual sugars raising its COD. Four aerated windrows were performed to establish the effects of confectionary by-products on the compost process. Different mixtures of the agro-industrial wastes were used. During the composting process, physico-chemical parameters (temperature, moisture, pH, electrical conductivity, total carbon and total nitrogen) were studied. The stability of the biological system was noticed after 70 days. The final products were characterized by their relatively high organic matter content, and low C/N ratio of 14-17. The humidification of the windrows with the wastewater seemed to have accelerated the composting process in comparison to a windrow humidified with water. In addition, the organic matter degradation was enhanced to reach 55-70%. The application of the obtained composts to soil appeared to significantly improve the soil fertility. Indeed, field experiments showed an increase in potato yield; the production was 30.5-37.5 tons ha(-1), compared to 30.5 tons ha(-1) with farm manure.
研究了废弃橄榄饼与家禽粪便和芝麻壳的共堆肥。这些有机固体废物用糖果废水浇水，该废水的特点是残留糖含量高，化学需氧量（COD）也高。设置了四条曝气堆肥条垛来研究糖果副产品对堆肥过程的影响。使用了不同的农业工业废弃物混合物。在堆肥过程中，研究了物理化学参数（温度、湿度、pH值、电导率、总碳和总氮）。70天后观察到生物系统的稳定性。最终产品的特点是有机质含量相对较高，碳氮比低至14 - 17。与用水加湿的堆肥条垛相比，用废水对堆肥条垛进行加湿似乎加速了堆肥过程。此外，有机质降解率提高到了55% - 70%。将获得的堆肥施用于土壤似乎能显著提高土壤肥力。实际上，田间试验表明马铃薯产量有所增加；产量为30.5 - 37.5吨/公顷，而使用农家肥时产量为30.5吨/公顷。
