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首页> 外文期刊>The Science of the Total Environment >Humic substances developed during organic waste composting: Formation mechanisms, structural properties, and agronomic functions
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Humic substances developed during organic waste composting: Formation mechanisms, structural properties, and agronomic functions

机译：有机废物堆肥过程中产生的腐殖质：形成机理，结构性质和农艺功能

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摘要

Aerobic composting is a typical biochemical process of stabilization and harmlessness of organic wastes during which organic matter degrades, and then aggregates, to produce humic substances (HSs). HSs are a core product of-and a crucial indicator of-the maturation of compost that can be used in soil amendments. The formation of HSs is affected by the characteristics of the raw materials involved, the presence of compost additives, microbial activity, temperature, pH, the C/N ratio, moisture content, oxygen content and particle size, all of which can interact with each other. The formation of HSs is therefore complex. Moreover, it is difficult to identify definitive structures of humic acids (HAs) and fulvic acids (FAs), which are the two major components of HSs. However, HSs represent the same functional groups and structural arrangements, which helps to predict their structures. Functional groups represented by phenol and carboxylic acid groups of HAs and FAs can provide various agronomic functions, such as plant growth enhancement, water and nutrient retention, and disease suppression capacity. Overall, HSs can act as a soil amendment, fertilizer, and plant growth regulator. These functions of HSs enhance the reuse potential of organic waste compost products; however, this requires scientific control of various composting parameters and appropriate application of final products. (C) 2019 Elsevier B.V. All rights reserved.
机译：有氧堆肥是有机废物稳定和无害化的典型生化过程，在此过程中有机物质降解，然后聚集，产生腐殖质（HSs）。 HS是堆肥成熟的核心产品，也是堆肥成熟的关键指标，可用于土壤改良剂。 HS的形成受所涉及原材料的特性，堆肥添加剂的存在，微生物活性，温度，pH，C / N比，水分含量，氧含量和粒径的影响，所有这些因素均可相互影响其他。因此，HS的形成是复杂的。此外，很难确定腐殖酸（HAs）和富里酸（FAs）的确定结构，腐殖酸（HAs）和富里酸（FAs）是HSs的两个主要组成部分。但是，HS代表相同的功能组和结构安排，有助于预测其结构。 HAs和FAs的酚基和羧酸基团代表的官能团可提供多种农艺功能，例如增强植物生长，保持水分和养分以及抑制疾病。总体而言，HS可以充当土壤改良剂，肥料和植物生长调节剂。 HS的这些功能增强了有机废物堆肥产品的再利用潜力；但是，这需要科学控制各种堆肥参数并适当应用最终产品。 （C）2019 Elsevier B.V.保留所有权利。

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