Abstract:
Composting is an effective method of recycling organic solid waste, and it is the key process linking planting with recycling. To explore the reuse of agricultural organic solid waste as a resource in the Yellow River Delta, the effects of microbial inoculant and different additives (calcium superphosphate, biochar, tomato straw, rice husk, and sugar residue) on pile composting of cow dung were studied to obtain the best composting conditions. The results showed that microbial inoculant and additives all played positive roles in the process of aerobic composting, and the experimental groups outperformed the control groups without any additives. For discussion, the microbial inoculant promoted rapid pile body heating more than the recovery materials alone, and the effects on aerobic composting were related to the organic matter of substrates and biochar. After being composted, all the materials were satisfactorily decomposed. Degradation of additives into humic acid might serve as electron shuttles to promote thorough organic matter decomposition. These results provide a scientific basis data for industrial composting of organic solid waste processed by on-site stacking, and provide a reference for researcher and practitioners for studying the applications of microbial inoculant on aerobic composting.
摘要:
堆肥是回收有机固体废物的有效方法,这是将种植与回收联系起来的关键过程。探索黄河三角洲农业有机固体废物资源化再利用,微生物菌剂和不同添加剂(过磷酸钙,生物炭,番茄秸秆,稻壳,和糖渣)对牛粪堆堆肥进行了研究,以获得最佳堆肥条件。结果表明,微生物菌剂和添加剂在好氧堆肥过程中发挥了积极作用,实验组在没有任何添加剂的情况下优于对照组。为了讨论,微生物菌剂比单独的回收材料更能促进桩体快速加热,对好氧堆肥的影响与基质有机质和生物炭有关。堆肥后,所有材料都令人满意地分解了。将添加剂降解为腐殖酸可能充当电子穿梭器,以促进有机物的彻底分解。这些结果为通过现场堆放处理的有机固体废物的工业堆肥提供了科学依据数据,为研究微生物菌剂在好氧堆肥中的应用提供参考。