Area of Ecological Production and Natural Resources (IFAPA), Almeria, Spain.
J Environ Sci Health B. 2009 Jun;44(5):488-95. doi: 10.1080/03601230902935444.
The present work evaluates the possible bioconversion of wet olive cake by low-cost biostabilization (vermicomposting process). Wet olive cake fresh (WOC), precomposted (WOCP), or mixed with biosolids (WOCB), were vermicomposted for 6 months to obtain organic amendments for agricultural and remediation purposes. The results showed initial differences depending on previous treatment. WOCP was initially more stable, presented a low C:N ratio, and showed more dehydrogenase and urease activity. By contrast, there was no dehydrogenase activity initially in WOC and WOCB, due to the presence of some different types of polyphenols. Finally, the end product showed relatively higher amounts of total nitrogen and humic acid and met the standard of quality for composts and vermicomposts for use both in conventional and organic agriculture and soil-restoration programs.
本研究评估了利用低成本生物稳定化（堆肥过程）对湿橄榄饼进行生物转化的可能性。新鲜湿橄榄饼（WOC）、预堆肥湿橄榄饼（WOCP）或与生物固体混合的湿橄榄饼（WOCB）进行了为期 6 个月的堆肥，以获得用于农业和修复目的的有机肥料。结果表明，初始时会根据之前的处理方式存在差异。WOCP 最初更稳定，具有较低的 C:N 比，并且表现出更高的脱氢酶和脲酶活性。相比之下，由于存在一些不同类型的多酚，WOC 和 WOCB 最初没有脱氢酶活性。最后，终产物显示出相对较高的总氮和腐殖酸含量，并且符合用于常规和有机农业以及土壤修复计划的堆肥和蚯蚓堆肥的质量标准。
