Andraskar Jayanta, Yadav Shailendra, Khan Debishree, Kapley Atya
Environmental Biotechnology & Genomics Division, CSIR-National Environmental Engineering Research Institute (NEERI), Nehru Marg, Nagpur, 440020 India.
Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 India.
Indian J Microbiol. 2023 Sep;63(3):235-243. doi: 10.1007/s12088-023-01087-4. Epub 2023 Aug 19.
Recovery and recycling of municipal solid waste biodegradable fraction (50-55%) are essential for attaining sustainability and a circular economy. Among organic waste treatment methods, composting is used to recycle organic fractions of waste. However, only 10-12% of municipal solid waste is utilized for composting treatment due to a lack of segregation practices and process challenges, including long process periods, odorous and greenhouse gas emissions, nitrogen loss, and low compost quality, which hinders large-scale practice. The current review paper discusses the challenges of composting treatment and its possible solutions. Various strategies were explored to address these challenges, such as utilizing microbial inoculum, additives, and optimization of physicochemical parameters. It also emphasizes the application of metagenomics for exploring key species. The knowledge about the microbial community and biochemical pathways (genome mining) can be exploited for the improvement of treatment efficiency.
The online version contains supplementary material available at 10.1007/s12088-023-01087-4.
城市固体废弃物可生物降解部分(50 - 55%)的回收与再利用对于实现可持续发展和循环经济至关重要。在有机废弃物处理方法中,堆肥用于回收废弃物的有机部分。然而,由于缺乏分类措施以及包括处理周期长、有气味和温室气体排放、氮素损失以及堆肥质量低等工艺挑战,仅有10 - 12%的城市固体废弃物被用于堆肥处理,这阻碍了大规模应用。当前这篇综述论文讨论了堆肥处理的挑战及其可能的解决方案。探索了各种策略来应对这些挑战,例如利用微生物接种剂、添加剂以及优化物理化学参数。它还强调了宏基因组学在探索关键物种方面的应用。关于微生物群落和生化途径(基因组挖掘)的知识可用于提高处理效率。
在线版本包含可在10.1007/s12088 - 023 - 01087 - 4获取的补充材料。